Doctoral Degrees (Food Security)

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Investigation of the socio-economic impacts of morbidity and mortality on coping strategies among community garden clubs in Maphephetheni, KwaZulu-Natal.
(2007) Chingondole, Samuel Mpeleka.; Hendriks, Sheryl Lee.; Green, Jannette Maryann.
The impact of morbidity and mortality on women’s coping strategies has not been explored or documented in South Africa. Therefore, the main objective of this study was to investigate the influence of morbidity and mortality on coping strategies among 10 community vegetable garden clubs representing 79 households in the Maphephetheni uplands, rural KwaZulu-Natal. An innovative mix of qualitative and quantitative methodologies was used to determine the impacts of morbidity and mortality on women’s coping strategies. Qualitative research methodologies included group sustainable livelihoods analyses. Quantitative methodologies included three annual household surveys conducted between 2003 and 2005. The coping strategy index was also used to determine the levels of food insecurity and understand how morbidity and mortality compromised the coping ability of participating households. The coping strategy index has not been previously used in assessing the impact of morbidity and mortality on coping strategies. Chi-Square tests, Pearson correlation, paired-sample t-tests, and frequency and descriptive statistics were applied to analyse data. The study found that the key contribution of women in community gardening and non-farm activities was compromised by the burden of morbidity and mortality that had negative effects on women’s coping strategies. Findings indicated that the frequency of illness among garden club and household members increased between 2003 (21.2% of household members) and 2004 (25%). Similarly, more households (42% of the sample households) experienced a death in 2004 compared to 7.6 percent of households in 2003. As a result, costs associated with health care and funerals were significantly (P = 0.01) lower in 2003 than in 2004. Most garden club and household members relied on subsidised medication to treat illness. Number of households dependent on subsidised medication dropped from 86 percent of households in 2003 to 66.7 percent in 2004. In 2004, households reported purchasing medication in addition to subsidised medication. Caring for the sick and contributions to household chores were significantly (P = 0.01) correlated in 2003 and 2004. This means that increased caring for sick members resulted in increased workloads for women. Caring for the sick and engagement in community garden activities were significantly (P = 0.01) correlated in both 2003 and 2004, suggesting that caring for the sick reduced participation in community gardens. Analysis showed that reduced labour supply due to increased incidences of sickness and deaths, increased health care and funeral costs, reduced household income and increased care-giving minimised women’s ability to cope with adverse situations. Women used erosive coping strategies such as borrowing money, selling assets, limiting portion sizes at meal times and relying on less preferred and less expensive foods to cushion the effects of morbidity and mortality. Application of erosive coping strategies minimises household resilience to future shocks and stresses. Findings showed that farm and non-farm livelihood activities were critical components of rural livelihoods in Maphephetheni because sample households depended on community gardens, home gardens and small-scale non-farm enterprises for food and income to cushion the negative effects of morbidity and mortality. Community gardening contributed less to total monthly household income (4% of total monthly household income) than wages (41%), social grants (40.9%), home gardens (7%), small-scale enterprises (4.2%) and remittances (2.9%). Even though low, the contribution of community gardens to food security cannot be ignored considering the number of households (about 32% of sample households) that depended upon subsistence agriculture for food. Further analysis indicated that community gardens were themselves a coping strategy in the face of morbidity and mortality. Community gardens provided a risk aversion strategy and minimised risk by providing food resources and social and moral support for households facing hardship. Strategies to enhance household asset bases and promote more productive farm and non-farm activities are needed to improve resilience against the effects of morbidity and mortality. Government and non-governmental organisations need to establish a multi-purpose centre where women can learn agricultural and entrepreneurial skills to help households cope more effectively with shocks and stresses. However, such strategies should ensure that tasks allocated to various activities such as community gardening, non-farm activities and household chores such as fuel and water collection should be distributed equally across household members so that women do not carry excessive workloads since increased workloads reduce women’s ability to respond to livelihood insecurity shocks and stresses.
"Putting food on my table and clothes on my back" : street trading as a food and livelihood security coping strategy in Raisethorpe, Pietermaritzburg.
(2008) Abdulla-Merzouk, Quraishia.; Hendriks, Sheryl Lee.
It is widely accepted that street trading is a survivalist activity that yields low profits. Few, if any, studies investigate how much profit is earned; intra-household allocation; and contribution of this income towards households needs. Therefore, a glaring omission in street trading literature is a critical evaluation of the contribution of street trading to household food and livelihood security. A major strength and original contribution of this study to the wider context is the analysis of street trading as a household food and livelihood security coping strategy. This study investigated whether street traders had sufficient food for household consumption; whether street trading reduced vulnerability to hunger; and determined how income from street trading was spent by households. Seven innovative participatory tools applied through a unique research design, were used to elicit business; household and demographic information. Five fruit and vegetable vendors; three clothing and cosmetics; two food; one telephone service; and one video vendor participated. Street traders were categorised into four food security groups according to increasing Coping Strategy Index scores. These were: two traders in a seemingly food secure group; five in the relatively food secure group; four in the relatively food insecure group; and one in the food insecure group. The use of innovative participatory research tools led to several findings. Types of goods sold did not determine profitability, but profitability determined household food security. As household income decreased, Coping Strategy Index scores increased. This finding implied sufficient access to food for household consumption was determined primarily by income levels ranging from R250 to R10 000 per month. Low income traders used severe coping strategies and were more food insecure than other traders. The middle income traders used intermediate coping strategies while the high income group used less severe strategies or did not apply food security coping strategies such as eating less preferred foods. This study found that child dependents and unemployed household members increased household food insecurity. Risk sharing networks among street traders played a key role in accessing cash for food and the sustainability of the micro-enterprises. Social grants reduced household food insecurity and provided a cash safety net for economic activity. Assets reduced hunger and provided crisis security. The study has shown that street trading supplemented low income levels for pensioners and low income earners. Street trading was a primary livelihood strategy for people who had no access to income from pensions or other/formal employment. The study concluded that income from street trading was vital to improve access to food for household consumption. Street traders who had established customers; and access to material and social assets consumed a greater variety of foods than street traders who were fairly new, lacked access to loans (through family and friends) and owned few or no material assets. All participating street traders began trading as a coping strategy to increase household cash. Their trading evolved into an adaptive or permanent livelihood strategy. Households used a mix of food related coping strategies and street trading was an adaptive strategy, rather than a coping strategy to access sufficient food for household consumption. Participating street traders were survivalists as street trading provided a daily net for subsistence. Although street trading income was barely sufficient to sustain households, it provided much needed income to pay school fees; rent; water and electricity. Street trading is therefore critical to household welfare for participating street traders; but infrastructure and resource constraints trapped street traders in survivalist enterprises and exacerbated their vulnerability to food and livelihood security. This study fills a gap in understanding of street trading behaviour in Raisethorpe. This is the first study to apply participatory research methods to comprehensively explore street trader coping strategies and the first study to attempt to link street trading, livelihood security and food security. It is recommended that municipalities adopt a developmental approach to street trading that includes trading sites with secure tenure and infrastructure such as shelter; tables; water and sanitation. Policy reform in terms of issuing trading permits and developing regulations for renting trading sites is imperative. Since this study found that profitability determined household food security, business advice and skills training should be provided for all street traders to promote business sustainability and profitability. A final recommendation is that street trading be recognised as a survivalist strategy that requires further investigation and policy measures to improve income and ensure food security for vulnerable groups.
Determining the potential for smallholder organic production among three farming groups through the development of an empirical and participatory decision support tool.
(2008) Thamaga-Chitja, Joyce Magoshi.; Hendriks, Sheryl Lee.; Nsahlai, Ignatius Verla.; Copeland, Phillip.
Organic farming is increasingly viewed as a plausible production system for sustainable agriculture for smallholder farmers. However, there is not enough scientific evidence and knowledge to advocate certified organic farming for African smallholder farmers who face several constraints related to production, storage and marketing. The potential for organic farming for smallholder farmers, faced by these constraints, is not clearly defined. As a result, this study set out to evaluate the production potential of organic agriculture among three smallholder farmer groups. Production questions were used to investigate and evaluate the potential for organic agriculture among three smallholder farmer groups and constituted the following subproblems: · What crops can be grown in the three study areas, based on climatic data ? · Do farmers concur that these are the most suitable potential organic crops? · How useful do the farmers find the decision making tool? · What constraints threaten commercial production of the identified crops for these farmers? Participatory methodologies that included the use of Force Field Analysis, discussions and workshops were used to identify organic production constraints related to production decisions. Farmers faced constraints related to finance, capacity enhancement, technical knowledge, fencing, irrigation, and a lack of, or inappropriately trained extension officers. As a response to identified production constraints, a decision support tool was developed. Natural resource data, including climatic and agronomic data, was used to create a specially calibrated Microsoft Excel spreadsheet interface that functions as an empirical organic production decision support tool for organic and aspirant organic smallholder farmers, by providing answers for farmer-prioritised production constraints. A list of potential crops for each of the three study areas was subjected to a series of checks against suitability for climate and disease conditions and nutrient requirements. A limited supply of manure, to meet the enormously high requirements for organic production in the poor soils of these areas, is the major constraint to exclusive organic production and renders certified organic production difficult and unsustainable. Farmers disagreed with some of the crops on the list, arguing that familiar crops were rejected by the model, but they were excited by the prospects for production of “new” crops suggested as suitable by the decision support tool, but not yet grown in the study areas. End users welcomed the model and expressed the opinion that it would be useful in decision making related to organic crop production. The study concludes that, although a number of agronomically-suitable crops can grow in the study areas, organic production is restricted by rather high manure requirements, lack of compost making skills, lack of knowledge on natural pest and disease control and poorly nourished soils, leading to poor yields. The rainy season creates a disease-supporting environment, rendering organic farming risky for rain-fed smallholder farming. Risk in certified organic farming for smallholders was further exacerbated by a hardly inconducive policy environment that low literacy levels exist amongst farmers. This study is innovative for three reasons. First, farmers were true participants and drivers of the research. Second, trans-disciplinary expert seminars were attended by experts from different disciplines who critiqued the conceptualisation, design, and implementation of the study. Third, the development of a practical decision-support tool shows innovation towards solving complex smallholder farmers decisions. If organic farming is to be promoted, commitment by government is needed in order to establish policy and legislation on organic farming to direct and govern training, information provision and marketing. Intensive training and knowledge building of organic production for smallholder farmers and extension officers is critical. There are also agroecological risks associated with organic farming for smallholder farmers. Recommendations for future research include comparison between organic agriculture and conventional agriculture, where sustainability of certified organic farming and economic viability can be conducted in the South African context. Improvement of the decision making tool will require involving information technology specialists so that the tool can be installed in community centres, extension offices and other accessible places for farmers and others.
Does sequential harvesting affect the quality of and income from organically grown potatoes?
(2009) Katundu, Mangani George Chilala.; Siwela, Muthulisi.; Bower, John Patrick.; Hendriks, Sheryl Lee.
Lack of effective storage facilities to mitigate post harvest losses threatens the profitability of organic farming. In rural KwaZulu-Natal, small scale farmers use traditional storage and sequential harvesting to keep potatoes post maturity while waiting to sell. The effect of these practices on potato quality has not been studied and documented. This study set out to investigate if traditional practices (sequential harvesting and traditional farmer’s store) of the Ezemvelo Farmers Organisation in Umbumbulu affect the quality and marketable quantity of organically grown potatoes. Specifically the study set to investigate the effect of traditional farmer’s store, in situ and controlled storage on the carbohydrate content and sensory quality of potatoes organically grown in Embo by EFO farmers; determine consumer quality expectations of organically and conventionally grown potatoes; investigate the effect of sequential harvesting on the potato quality expectations of consumers and to investigate the produce and income losses experienced by small scale organic farmers at harvest and during storage. Experiments were conducted to compare the effect of sequential harvesting, farmer’s store and controlled cold storage (7oC and 90% relative humidity) on the sensory, appearance and keeping quality of organically grown potatoes. A survey of 100 consumers (40 organic and 60 conventional consumers) was conducted to ascertain consumer appearance and keeping quality expectations of potatoes. In addition, a survey of 101 farmers investigated the storage practices of the EFO farmers who grew potatoes and the type of losses incurred in storage. Preference ranking was used to investigate if time of harvesting post maturity affected potato quality. Produce losses experienced by the farmers were quantified. A co-research group of three seasoned farmers of the EFO participated in the research. They produced potatoes used in the study and provided valuable input to ensure that the study adhered to storage practices of the farmers. The lowest and highest sugar levels were observed in potatoes stored in situ and under controlled conditions, respectively. Potatoes left in situ also recorded higher starch content. Potatoes stored in situ were significantly preferred by sensory panellists (p<0.05) over those stored in both farmer’s store and in controlled storage. Preference rank scores were negatively correlated to total sugar content and positively correlated to starch content. Consumers in the study highlighted five desirable appearance qualities in potatoes: absence of greening, absence of sprouting, smooth skin texture, absence of blemishes and light skin colour. No significant differences in the quality expectations between participating organic and conventional potato consumers were found. The majority of consumers expected potatoes to store for at least three weeks post purchase. Sequentially harvested potatoes met this expectation when potatoes were left in situ for a maximum of six weeks post maturity. Potatoes in situ also maintained good appearance and sensory quality. The highest produce losses were experienced in summer owing to soft rot problems. Production in the drier seasons (autumn and winter) increased the proportions of potatoes too small to be sold as table potatoes. With the exception of completely rotten potatoes, poor quality potatoes were consumed, used as seed potatoes and sold to the local market as seed and for food. Poor potato quality resulted in reduced income for the farmers. This investigation pioneered research into the effect of sequential harvesting on the quality of organically grown potatoes. The findings demonstrate that sequential harvesting provides resource-poor small scale organic farmers with an efficient storage option where other storage methods and technologies may be inappropriate, ineffective or unaffordable. It is recommended that government and other players in the agricultural sector plan initiatives to educate small scale potato farmers on the benefits of sequential harvesting as an effective short term method of potato storage. Research with other potato cultivars in different agro-ecological settings is needed to optimise sequential harvesting. Government policy aimed at training and developing farmer capacity in organic seed potatoes production is essential to ensure that farmers access disease and pest free seed. Farmers also need assistance to access to irrigation resources to improve production.
The extent of Aflatoxin and Aspergillus section Flavi, Penicillium spp. and Rhizopus spp. contamination of peanuts from households in western Kenya and the causative factors of contamination.
(2010) Mutegi, Charity Kawira.; Ngugi, Henry.; Hendriks, Sheryl Lee.
Peanuts contribute significantly to food security in western Kenya due to their high nutritional value and cash crop potential. However, the crop is highly susceptible to aflatoxin contamination. Yet little information is available on the extent of contamination in the region. This study explores the level and extent of contamination of peanuts by aflatoxins, Aspergillus section Flavi, Rhizopus and Penicillium spp. in western Kenya. A survey of 769 households was carried out in the Busia and Homa bay districts of Kenya. Information on peanut pre- and post-harvest practices was collected through person-to-person interviews. Aflatoxin levels of samples collected from each household were determined by indirect competitive ELISA method. Isolation of Aspergillus section Flavi, Penicillium and Rhizopus spp. was done on Modified Dichloran Rose Bengal (MDRB) agar, while identification of specific fungal species was done on Czapek yeast extract agar (CYA). Screening isolates of A. flavus and A. parasiticus for aflatoxin production was done in high sucrose yeast extract (YES) liquid medium, and the aflatoxin types identified on TLC plates, using analytical grades of aflatoxin B1, B2, G1 and G2 as reference standards. Common household preparation techniques (roasting, making peanut paste and boiling peanuts) were evaluated for effectiveness in reducing aflatoxin levels in peanuts. The boiling procedure was modified to test the effect of magadi (locally available salt used mainly to soften legumes, vegetables or maize while cooking), ammonium persulphate and sodium hypochlorite during soaking. Magadi, sodium bicarbonate and locally prepared ash was subsequently used to boil the nuts after soaking. Aflatoxin levels ranged from zero to 7525 ìg/kg. Most samples were safe to consume, based on the European Union and Kenya Bureau of Standards tolerance levels, with 63.7 per cent of all samples having undetectable levels, and only 7.54 per cent being contaminated based on KEBS standards. Peanuts from the Busia district, which has more of Lower Midland 1 (mean annual rainfall of 1600-1800 mm) and Lower Midland 2 (mean annual rainfall of 1300-1700 mm) agro-ecological zones had significantly (÷2=14.172; P=0.0002) higher levels of aflatoxin compared to the Homa bay district, that has more of the drier Lower Midland 3 agroecological zone (mean annual rainfall of 900-1500mm). Improved cultivars had significantly (÷2=9.748; P=0.0018) lower levels of aflatoxin compared to local cultivars. Over 60 per cent of all samples had A. flavus S-strain, A. flavus L-strain and A. niger. A. flavus S-strain was positively correlated with aflatoxin levels. As expected, grading of peanuts post-harvest significantly reduced the incidence of A. flavus S- and L-strains, while peanuts collected from farmers who belonged to producer marketing groups had a significantly lower incidence of A. flavus S- and L-strains, A. niger and Rhizopus spp. The incidence of A. flavus L-strain, A. niger and Rhizopus spp. was significantly higher in local landraces compared to the improved cultivars. Over 60 per cent of isolates produced Aflatoxin B1. Intermediate processes such as sorting and dehusking led to a significant decline in levels of aflatoxin. Soaking peanuts in water, magadi, NaOCl and ammonium persulphate significantly reduced aflatoxin levels by 27.7, 18.4, 18.3 and 1.6 per cent respectively; while boiling the peanuts in magadi, local ash, baking powder and water reduced aflatoxin levels by 43.8, 41.8, 28.9 and 11.7 per cent respectively. Using magadi during boiling increased the acceptability of the boiled peanuts while reducing the aflatoxin levels. The impact of aflatoxin levels in peanuts studied in this research is within safe limits except a few samples, and therefore aflatoxin contamination of peanuts at household level is not a serious threat. Contamination by aflatoxin and post-harvest fungi can be reduced by focusing on improved control strategies for wetter and more humid zones such as planting improved peanut cultivars and controlling pre-harvest pest damage. Conventional household peanut preparation techniques should be explored as possible aflatoxin management strategies in Kenya. The aflatoxin binding properties of locally available salts such as magadi and locally prepared ash should be further investigated.
Measuring and validating food insecurity in Embo, using the food insecurity scale and index
(2010) Msaki, Mark Mapendo.; Kiamba, Josephine.; Hendriks, Sheryl Lee.
Measurement of household food insecurity is needed to identify the magnitude of food insecurity and assess the impact of development interventions. However, there is no commonly agreed measure of household food insecurity. While researchers continually experiment with new measures, the resultant measures are often complex and include numerous variables that still do not distinguish clearly between the food secure and the food insecure. This study set out to prepare a quick and convenient tool to measure household food security, using common household demographic and socio-economic variables commonly collected through a variety of household surveys. This has minimised data collection costs and assisted national food security units to continually measure and monitor household food insecurity. Food insecurity levels were estimated using data from a baseline survey conducted in a community in KwaZulu-Natal, South Africa. Food security was estimated using a number of measures, including food quantity (adequacy), dietary diversity, dietary quality, coping strategies employed and the Coping Strategies Index. The study found that household food availability varied across the two seasons over which data were collected. Only the percentile of sample households with adequate food intakes (one third of the samples) consumed enough food during the lean period when agricultural production was low. Households with inadequate food intakes also had consumed insufficient energy and lower micronutrient intakes during the period when agricultural produce was more abundant. Energy, iron and protein consumption was positively related to the consumption of adequate food. Energy intake was a relatively good indicator of protein and micronutrient intakes during the leaner period. Consumption of foods from three food groups, namely cereals, legumes and vegetables and fruits were necessary for adequate food intake. Cereals were the most important foods, forming the base of most meals, while fats and animal sourced foods were not widely consumed. Diversifying consumption through fruits and vegetables contributed significantly and positively to improved household food intakes. Household dietary diversity and dietary quality improved during the period of plenty. The application of coping strategies was strongly related to household food intake and diversity. Engaging in more coping strategies and having resultant higher Coping Strategy Index scores was strongly associated with household food inadequacy intakes and low food diversity scores. As expected, sampled households employed more coping strategies during the lean season. The strong and significant relationships between the Coping Strategies Index scores, the number of coping strategies practised by households and the household food intake indices (the Household Food Intake Index and Nutrient Adequacy Ratios) show that food intake is a strong indicator for household food security. The Household Food Insecurity Index and the Household Food Insecurity Scale were developed using 13 potential household demographic and socio-economic variables to identify the food-insecure households. The results of these two new measures were correlated with the results of the common measures reported above and found to be useful determinants of food security. The study found that while the Household Food Insecurity Index explained the influence of demographic and socio-economic variables in household food insecurity, the Household Food Insecurity Scale is more convenient in application (easy data management and computation process), and it is strongly related to the Coping Strategies Index scores. Both the Household Food Insecurity Scale and the Household Food Insecurity Index were useful tools to measure household food security and differentiate between food security and food insecure households in Embo Community. More research is recommended to further test the usefulness of the proposed measures in various settings.
The impact of home gardens on dietary diversity, nutrient intake and nutritional status of pre-school children in a home garden project in Eatonside, the Vaal triangle, Johannesburg, South Africa.
(2010) Selepe, Bolyn Mosa.; Hendriks, Sheryl Lee.
Urban agriculture is a strategy poor urban, informal settlement residents adopt to reduce poverty and improve food security and child nutrition. It is widely asserted in the literature and development circles that household vegetable gardens can provide a significant percentage of recommended dietary allowances of macro- and micro-nutrients in the diets of pre-school children. These children are vulnerable in terms of food access and nutrition. The first five years of a child’s life are crucial to psychological well-being. This study set out to determine the impact of home gardens on access to food, dietary diversity and nutrient intake of pre-school children in an informal settlement in Eatonside, in the Vaal Region, Johannesburg, South Africa. The home gardening project was undertaken in five phases, namely the planning phase; a baseline survey (including quantitative food intake frequencies, 24-hour recall, individual dietary diversity questionnaires and anthropometric measurements); a training programme on home gardens; planting and tending the gardens and evaluating the impact of home gardens on access to food, dietary diversity and nutrient intake of pre-school children. Children aged two to five years (n=40) were selected to participate in the study. The sample population consisted of 22 boys and 18 girls. The children were categorised into three groups at the start of the project: children of 24-35 months (four boys and one girl), 36-47 months (four boys and five girls) and 48-60 months (14 boys and 12 girls). All but 10 per cent of the children’s consumption of foods in the food groups increased. At the start of the project, low consumption rates were observed for white tubers and roots, vitamin A-rich fruit, other fruit and fish. After the gardening project, the number of children consuming vegetables increased considerably. There was an increase in the intake of food groups over the period of the project. The number of children consuming vitamin A-rich increased the most, with all children (45 per cent improvement) consuming vitamin A-rich vegetables at the end of the project, compared with just over half at the start of the project. The consumption of vegetables increased with 78 per cent of the children consuming beans and 33 per cent beetroot. Most children (95 per cent) consumed cabbage, carrots and spinach post-home gardening. Seventy eight percent of children consumed beans by the end of the project, but only a third of the children had consumed beetroot during the post-project survey period. Intakes of all nutrients considered in the study improved by the end of the project, except for energy and calcium, which dropped marginally, but both remained at around 50 per cent below requirements. Twenty five percent of boys (24-35 months) were underweight and below the 50th percentile at the pre- and post-project stages. The same boys were severely stunted (on average -4.41 standard deviations below the third percentile). Of the boys aged 36-47 months, 25 per cent were stunted pre-project, but by the end of the project, this number had decreased to 50 per cent. Twenty one per cent of the older boys (48-60 months) were within their normal height for age. Twenty five per cent of girls were underweight (36-47 months). A slight change was observed in the 36-47 month group, where the mean changed from -0.14 standard deviations (below 50th percentile) pre-project to -0.5 (below 50th percentile) post-project. All girls aged 24-35 months were below -2 standard deviations pre-project. After the home gardening project, the figure dropped to 50 per cent. For girls aged 36-47 months, 25 per cent were below -3 standard deviations after the project, compared with 20 per cent pre-project. Height-for- age for girls aged 36-47 months dropped by 10 per cent below -2 standard deviation post-home gardening. Girls from 24 to 35 months were severely stunted [-3.02 (below 3rd percentile) pre- and -2.31 (below 5th percentile) post-project]. Stunting was observed in 36-47 months girls who had means of -2.39 (below 3rd percentile) and 1.86 (below 25th percentile) both pre-and post-gardening respectively and were at risk of malnutrition. The older girls were well nourished with means of height-for-age at -0.88 (below 50th percentile) pre-project and -0.92 (below 50th percentile) post-project. Home-gardening improved food access, dietary diversity, energy, protein, carbohydrate, fat, fibre, vitamin A and iron intakes, but did not make a significant impact on the malnutrition of the children in the project or ensure adequate intakes. Home gardens had a positive impact on height-for-age scores; but had no significant impact on mean weight-for-age and height-for-weight z-scores of the pre-school children. Increases in carbohydrate and fat intakes were shown to have the only significant impact on the children’s nutritional status and only with regard to improving height-for-age scores. The results show that the gardens did not have the expected impact on children’s nutrition, but confirm that increases in incomes from gardening are likely to have a greater impact through savings from consuming produce grown and selling produce to buy energy-dense foods for the children. This needs to be considered in nutrition interventions.
A study of the effects of storage methods on the quality of maize and household food security in Rungwe District, Tanzania.
(2011) Mboya, Rose Mujila.; Tongoona, Pangirayi.; Derera, John.; Mudhara, Maxwell.
A sample of 260 farm households that were randomly selected in Katumba ward, Rungwe district, Tanzania were studied for the effects of storage methods on the quality of maize grain and household food security using qualitative and quantitative methods. Maize storage problems, amounts of maize that farm households harvested and amounts of maize that farm households lost to pests per year, food security status and farm households’ perceptions concerning their food security status were investigated using face - to - face semi - structured and structured interviews. Common storage methods that farm households used to store maize and the dietary importance of maize were investigated through interviews, seasonal calendars and the matrix for scoring and ranking. The quality of maize was investigated through conducting mycological analysis and through investigating levels of insect infestation using the incubation method on maize samples collected from a sub-sample of 130 farm households at harvest and after five months of storage period. It was found that farm households in Katumba ward preferred maize meal rather than other types of food that provide bulk such as rice and green bananas/plantains. Maize contributed 66.8 % - 69.5 % of the total energy and 83 - 90 % of the total protein required per day, and farm households stored maize using roof and sack storage methods. It was also found that 34.5 % of 2323 tonnes of maize that were harvested per annum in Katumba ward were lost to pests during storage. Fusarium, Diplodia, Aspergillus and Penicilliums species were identified as the main fungal pathogens that attacked stored maize. Sitophilus zeamais, Sitotroga cerealella and rodents were also identified as the main maize storage pests. About 25 % of the maize samples that were collected at harvest and 93 % of the maize samples that were collected from the same farm households after five months of storage were infested by either Sitophilus zeamais or Sitotroga cerealella or both. Maize samples from the two storage systems had an average number of 80 insect pests per 120 maize kernels (or 51 g of maize), amounting to 1569 insects per kg. The high levels of insect infestation reduced the amount of maize that could have been available to the farm households and subjected stored maize to fungal infections and subsequent contaminations, thus, rendering the farm households vulnerable to food insecurity. Furthermore, it was also found that most of the infestation of maize by insect pests and moulds in Katumba ward occurred during storage, and that farm households were not well informed concerning maize storage and the negative effects that fungal activities in maize can have on the health of the consumers. An average of 87717 μg/kg fumonisins, 596 μg/kg aflatoxins, 745 μg/kg ochratoxins and 1803 μg/kg T-2 toxins were detected in the maize samples. Currently, there are no set standards for T-2 toxins, whereas the internationally accepted standards for aflatoxins, fumonisins and ochratoxins in cereals are 20 μg/kg, 4 mg/kg and 50 μg/kg, respectively. It was concluded that the levels of mycotoxins detected in maize from Katumba ward were far above the internationally accepted standards and that the farm households were at risk of ill health through consuming maize meals made from contaminated maize grain. The presence of high concentrations of mycotoxins, together with the high levels of insect infestation in the maize led to the conclusion that reduction of the nutrient content of the maize grain in Katumba ward was inevitable. Thus, the pests that infested maize stored using the roof and sack storage methods in this ward compromised not only the availability of food, but also the utilization of the nutrients in the maize and its safety, leading to the farm households’ food insecurity. It was further concluded that the quality of maize stored using roof and sack storage methods in Katumba ward was low and that the roof and sack storage methods were inadequate for protecting stored maize from pests. It was recommended that an efficient method for rapid drying of maize prior to storage be found, that the roof and sack storage methods be improved so that they can effectively protect stored maize from moisture content problems. It was also recommended that the farm households’ awareness concerning maize storage and food security be raised, and that the extension staff in Katumba ward should urge the Tanzanian government to implement an agricultural policy which promotes efficient maize storage and maize quality in order to improve the current status quo. Above all, since maize is the predominant staple, it was recommended that the maize breeding program in Tanzania should emphasize development of maize varieties that are resistant to ear rots, storage insects and to contamination by mycotoxins as part of a larger program to improve food security in this part of the country. Breeding programs that aim at enhancing the nutritional value of maize were also recommended.
Can livelihood approaches adequately evaluate the determinants of food insecurity to inform interventions in Kenya?
(2012) Mutunga, Nancy Muthoni.; Hendriks, Sheryl Lee.; Ortmann, Gerald Friedel.
Food insecurity has remained pervasive for most Kenyan livelihoods despite the implementation of substantive interventions by the government and its development partners, since it gained independence in 1963. The inability to isolate distinct determinants of food insecurity for each livelihood group has led to interventions and solutions that have entrenched food insecurity rather than mitigate it. The key impediment to a livelihood-level analysis of food insecurity is the use of data and information collected at district-level administrative units, coupled with the absence of a robust analytical methodology. This study set out to identify determinants of food insecurity for three distinct livelihood groups in Kenya, namely the pastoral, agro-pastoral and marginal agricultural groups. The study also sought to empirically evaluate incremental impacts of identified determinants of food insecurity for each group. The outcomes were intended to inform the selection of particular indicators in order to target, monitor and identify important inter-relationships between variables for each livelihood group. Few studies have applied heterogeneous ordered logit regressions to livelihood-level data to evaluate food security determinants among livelihood groups and a comprehensive livelihood analysis of the determinants of food insecurity has not yet been undertaken in Kenya. Yet, Kenyan livelihoods are highly diverse, and livelihood characteristics transcend administrative boundaries. This study used a heterogeneous ordered logit to model determinants of food security in Kenya. The variables were: conflict, HIV/AIDS, rainfall, flooding, proximity to markets, migration patterns, food consumption sources, income contribution sources and own farm production. Results of significance tests and residual variability from the ordered logistic regression led to the identification of important determinants of food insecurity in each of the three livelihoods. The degree to which each of the variables was influential in accentuating food insecurity in each livelihood, was also evaluated. Determinants of food insecurity and their inter-relationships informed the selection of indicators for monitoring. Proximity to markets seemed to have a marked impact on food security in the pastoral, agropastoral and marginal agricultural livelihood groups. Conflict was influential in determining food insecurity, particularly for the pastoral and agro-pastoral livelihood groups. HIV/AIDS prevalence in the community was critical in determining food security status for the marginal agricultural and agro-pastoral livelihood groups. Rainfall was an important determinant of food insecurity in all the groups. Flooding had no significant impact on food insecurity. The results showed that an increase in the number of food sources improved food security in the pastoral, agro-pastoral and marginal agricultural livelihood groups. A diversity of income sources improved food security in the pastoral and agro-pastoral livelihood groups. The pastoral migration pattern seemed to have a substantial impact on food security especially in the pastoral and agro-pastoral livelihood groups. Own farm production was also influential in determining food security in both groups. The study outcome provides a basis for identification of important monitoring indicators including agro-climatic, trade and market processes, migration dynamics, income and food sources and the stability, settlement patterns, key livelihood and coping strategies in the three livelihood groups. The strong inter-relationships between variables suggest that multiple variables need to be monitored concurrently to address livelihood food insecurity in Kenya. The findings suggest that livelihood approaches are central to identifying determinants of food insecurity in Kenya. The outcomes of the study provide a basis for informing interventions intended to reverse food insecurity in Kenya for each distinct livelihood group. Further research could include an analysis of the impacts of seasonality, an in-depth analysis of the markets and their marked influence in affecting food security, and applications of similar methodologies to evaluate of the food insecurity of livelihood groups that were not covered in this study. Outcomes of this work are expected to provide a basis for formulating livelihood-specific interventions in Kenya. The results will provide a platform for further interrogation of important determinants of livelihood food insecurity by governments, researchers, and development partners. Aspects of the methodologies applied in this study can be replicated in adjacent countries with food security and livelihood characteristics similar to Kenya, such as Ethiopia and Somalia.
Do African country investment plans mitigate high food prices through improved household risk management? : a five-country comparative analysis.
(2012) Ngidi, Mjabuliseni Simon C.; Hendriks, Sheryl Lee.; Ortmann, Gerald Friedel.
Staple food prices rose sharply in 2007/2008, dropped slightly after July 2008, and rose again in 2010/2011. Since 2008, food prices have remained high, indicating a structural upward adjustment in food prices amidst excessive price volatility. The 2008 food price increases led to considerable media coverage and alarm among governments who implemented a variety of responses to protect their populations from food insecurity. At the start of the high food price crisis in May 2008, the African Union and New Partnership for Africa’s Development (AU/NEPAD) invited 16 African countries to a workshop in South Africa. The aim of the workshop was to assist selected African countries identify and formulate appropriate plans to mitigate food insecurity and manage rising food prices. This study set out to investigate whether the strategies implemented by national governments at the start of the crisis mitigated high food prices through improved risk management strategies in five African countries (Ethiopia, Kenya, Malawi, Rwanda and Uganda) and evaluated these strategies to see if they were included in the national agriculture and food security investment plans. To achieve this, the study set out to explore four sub-problems, namely: What was the impact of high food prices on populations in the five selected countries (Ethiopia, Kenya, Malawi, Rwanda and Uganda)? How did the five countries respond to the 2008 food price crisis with regard to providing for immediate needs and protecting vulnerable groups from food insecurity? How many early actions were included in country compacts and agriculture and food investment programmes? Do country investment plans include household risk management programmes that will protect vulnerable groups against high food prices in future? The involvement of the researcher in the AU/NEPAD workshop and his subsequent engagement with national government representatives provided a unique opportunity to analyse the iterative process of Country Investment Plan (CIP) development. This innovative and largely qualitative study integrated comparative, content and thematic analysis approaches, using the four elements of the Comprehensive Africa Agricultural Development Programme’s (CAADP) Framework for African Food Security (FAFS) to analyse the national plans. The study drew on available data from a wide variety of national, regional and international documents. Additional data were collected through a survey questionnaire completed by CAADP country focal persons. Data sourced from documents included Food Price Indices, country policy responses to high food prices, poverty and malnutrition indicators and the types of risk management strategies designed under CAADP. The study found that food prices increased across all five countries between 2007 and 2008, although the effects of the increases varied, being influenced by, among other factors, the proportion of national stocks purchased on the international market (i.e. net importers of staple crops), the availability of substitute staples on the domestic market and the magnitude of the difference between international and domestic market prices. The 2008 food price increases forced populations to spend a higher proportion of their income on food and eroded their purchasing power, impacting on the food security of these populations. Poor people adopted eroding consumption strategies that increased food insecurity. The impact of the high food prices on populations was determined by whether they were net food buyers or producers, the mix of staple commodities in their food basket and the proportion of income spent on food. As poor net food importing countries, imported staple foods became too costly, except in Uganda - a net exporter of food staples consumed in the surrounding countries. High food prices also provoked social unrest in Ethiopia and exacerbated political and economic instability in Kenya. Countries’ early responses to the food price crisis were varied and included responses that can be classified into three main categories, namely: Trade-oriented responses protected domestic stocks, reduced tariffs, restricted exports to reduce prices for consumers or increased domestic supply Consumer-oriented responses provided direct support to consumers and vulnerable groups in the form of, among others, food subsidies, social safety nets, tax reductions and price controls Producer-oriented responses provided incentives for farmers to increase production - using measures such as input subsidies and producer price support. Most responses were aimed at managing prices, suggesting that governments tried to protect citizens from price increases and buffer consumption reduction. Safety net programmes mitigated risks through the provision of food for immediate consumption. As a result, malnutrition levels unexpectedly decreased or remained static in these five countries, despite expectations and media claims that the number of hungry people would increase significantly. The early actions from the food price workshop plans were generally systematically translated into long-term programmes in the Compacts and Country Investment Plans. In Ethiopia, seven of eight early action plans were translated into the CIP, Kenya included three of eight, Malawi’s CIP included four of ten, and Rwanda included six of its ten early actions in their CIP programme, while Uganda included only six of thirteen early actions in their CIP. The study found that CIPs included risk management strategies, but these focused predominantly on improving early warning systems and crisis prevention. The risk management options largely included options for improving crisis prevention, followed by improving emergency responses and strengthening risk management policies and institutions. Only Kenya’s CIP included more risk management options for improving emergency responses – four of six risk management programmes. Despite expectations that programmes developed under CAADP FAFS would include all FAFS elements, CIPs lacked programmes to improve dietary quality. Only Rwanda’s CIP included nutrition programmes - three of six programmes in their CIP. The study concluded that while the proposed risk management strategies could mitigate risks associated with high food prices and offer some buffer for populations from food insecurity, the programmes are not comprehensive. The plans were generally weak regarding improving dietary quality through diversification of food consumption and production. Although the CIPs included risk management strategies, these strategies would not address risks in a comprehensive manner. More effective and coherent actions are still required to help the most food insecure populations cope with increasing high food prices and future price shocks; help developing country farmers respond to the opportunities offered by the rising demand for their products; and bring more stability in prices. The early food price response workshop seems to have influenced the development of programmes in the CAADP compact and CIPs, despite the fact that the workshop did not intend to assist countries with the development of comprehensive national investment plans. The large funding gaps in the CIPs constrain implementation of essential mitigation and development strategies and could leave countries vulnerable to the negative impacts of higher prices for consumers and threaten future household food security. The study recommends that countries invest in agriculture-led growth to boost domestic production and strengthen institutional capacities regarding national food stock reserves to reduce their dependency on imports and ensure food insecurity. National monitoring and evaluation systems need to be strengthened to evaluate and monitor the implementation of CIPs and to warn about future high food prices. Empirical estimation of the impact of price increases on households across all CAADP countries is needed to understand and monitor the impact of price changes and interventions.
Chiefdom development plan : implications for food security in Swaziland.
(2015) Mosisi, Moleka Pange.; Veldman, Frederick Johannes.; Siwela, Muthulisi.
The Lower Usuthu Smallholder Irrigation Project (LUSIP) aims to reduce poverty and improve food security among rural households in Swaziland. Beneficiaries organise themselves into "agricultural cooperatives", each of which develops a unique Chiefdom Development Plan (CDP). The CDP process enables households to organise themselves into groups to access LUSIP and develop other focus areas for implementation. In addition to projects such as LUSIP, Swaziland has developed the National Food Security Policy to guide food security programmes in the country. This study set out to evaluate the CDP process to understand its successes and failures. The study evaluated the CDP against the four food security pillars that include food availability; food access; stability in equitable food provision; and food utilisation and nutritional requirements. The study explored four sub-objectives, namely:  The way in which the CDP has been implemented;  The extent to which the CDP met the process and outcomes criteria of land use planning;  Whether the CDP has the probability of sustainability and whether it can be aligned with development planning models used by the government of Swaziland;  Whether the CDP has been effective in achieving (i) the goals that have been set, including (ii) an improvement in food security. The study included a mixed method approach containing quantitative and qualitative data analyses, such as content, document, descriptive, and comparative analyses. In addition, the study included the analysis of the effectiveness of the CDP using the National Food Security Policy for Swaziland as framework for analysis for a comprehensive food security definition. Stratified random sampling was used to cover all the areas within the participating four Chiefdoms in the Lubombo Province. Accidental sampling was used to include a maximum of 260 households that had been involved in the CDP process. The study established that the CDP is a seven-stage process which is currently unique to Swaziland. The CDP is centered on the aspirations of the beneficiaries and it aims to identify resources, opportunities and challenges within the Chiefdom and transform them into a local strategy for sustainable management of land and water, to improve agriculture production and food security. The CDP had met all the process criteria. All the outcome criteria were met except that the households were not all positive (46.1%) on whether as a result of the planning land-use conflict had been reduced. Only few (23.8%) households understood that CDP is a framework but not a programme with a funding. The planning approach has been effective in fulfilling its primary goal of enabling household’s access to irrigated land and other water-related resources. Albeit some challenges in the planning process, this approach has a high probability of sustainability. The study concluded that even though effective, CDPs do not provide balanced support towards achieving all four food security pillars as some pillars are supported more than others. While food production may contribute towards availability and access of certain types of food, under-nutrition and risks such as drought continue to pose threats to productivity and stability of local agriculture and food systems. Therefore, the CDPs do not comprehensively meet food security objectives as per the National Food Security Policy for Swaziland. The study recommends that a review of the CDP process needs to be undertaken to ensure that all four food security pillars are included and that they reinforce one another. The CDP process needs to be cyclic rather than linear and include three explicit phases: objective setting, focus areas implementation; and monitoring and evaluation of the CDP outcomes and impacts. Beyond the need for better information sharing among policy makers and planners, government should adopt a national legislation requiring that community plans and implementation actions integrate key pillars of the National Food Security Policy for Swaziland to ensure the much needed comprehensive approach to improve food security in Swaziland.
Identification of opportunities for organic beef production from Nguni cattle to enhance food security by communal farmers in KwaZulu-Natal South Africa.
(2015) Kunene-Ngubane, Phumelele Eleanor.; Kolanisi, Unathi.; Chimonyo, Michael.
Communal farms are characterised by marginal lands which are suitable for external livestock farming. Communal farmers are in possession of adaptable indigenous cattle breeds and Indigenous Knowledge Systems (IKS) which facilitate the production of beef without the use of synthetic chemicals. As a result, these communal farming systems may be labelled ‘organic’ by default. In the developed countries, consumer demand for animal products is increasingly shifting towards products that are safe, nutritious, produced through acceptable methods and of good eating quality. Hence the demand for organic beef, which is sold at a premium, is increasing in these countries. Although communal farmers in South Africa are suitably placed to produce organic beef, the organic beef market is not well-developed and consumer demand for organic beef is not known. The objective of this study was to identify opportunities for organic beef production in providing household food security in communal areas of KwaZulu-Natal, South Africa. The specific objectives were to: assess the potential for organic beef production by communal farming systems; investigate the possibility of organic beef production by South African communal farmers; determine factors affecting consumers’ perceptions about organic beef in South Africa; and assess consumers’ Willingness To Pay (WTP) a premium for organic beef. Focus Group Discussions (FGDs) and a survey of 300 consumers were employed to collect data from communal farmers and consumers in various retail outlets in KwaZulu-Natal. Although the literature review indicated a growing concern and controversy regarding the health, safety and environmental benefits of organic and conventional beef, globally, consumers perceive organic beef as healthier as and safer than conventional beef, hence are willing to pay premium prices of up to 25%. These positive perceptions are based on the fact that the production processes of organic beef eliminate the use of chemicals. The indigenous cattle breed, particularly the inherent Nguni, has a lower sero-prevalence for A. marginale and B. bigemina in both the cool-dry and hot-wet seasons; hence it does not require chemicals for the prevention of tick-borne diseases prevalent in South African communal farms. South African communal farmers value their production systems which they consider to be wholesome, results in mature and tasty meat with several domestic and medicinal benefits compared to conventional beef. As a result, its produce, such as organic beef, should fetch premium prices in the formal markets. Socio-behavioural factors relating to inferiority, exclusion and lack of external institutional support are the main reasons why communal farmers are not actively participating in the South African formal beef markets, hence the low off-take rates (5 – 10%) from communal farms. The findings revealed that communal farmers were willing to participate in the South African formal beef market as equal partners with differentiated products which should be sold at the right price. This indicates a potential for organic beef production by South African communal farmers which could support and sustain the organic beef niche market in South Africa. The findings on determinants of consumers’ perceptions about organic beef revealed that consumers perceive self-grown food, without the use of chemicals as ‘organic,’ and hence associate it with health and safety. Organic food is acceptable in South Africa since 60% of the consumers had prior experiences in purchasing and consuming organic food. The Principal Component Analysis (PCA) yielded three components upon which South African consumers base their perceptions about organic beef: safety, health and environment. Safety control was the most important factor with 25.1% variations that determined consumer’s decision when purchasing organic beef. Health considerations are also important to the South African consumers regarding the purchasing of organic beef, with 21.5% variations. Information about organic beef and trust of origin were highly regarded by consumers as safety measures, whilst the absence of chemicals and appearance were considered as vital health factors. The findings on the effects of socio-economic characteristics and taste on consumers’ willingness to pay for organic beef indicated that the majority of consumers (76%) were willing to pay a premium for organic beef, with 52% willing to pay less than 25% premium. Taste and safety attributes were important favourable attributes of organic beef over conventional beef. Consumers value organic beef such that even those who did not consider it as safer than conventional beef were willing to pay a premium. Consumers in urban cities were most likely to be willing to pay a premium for organic beef. The study concludes that South African consumers, similar to those in developed countries, perceive organic beef as healthier, safer and environmentally friendlier than conventional beef. The demand for organic beef in South Africa is high since 76% of consumers were willing to pay a premium. As thus, organic beef production could be employed to ensure household food security on communal farms. The market for organic beef in South Africa is in the urban formal markets. The subjective safety, health and environmental attributes of organic beef have to be addressed in order to allow South African communal farmers to take advantage of the potential organic beef niche market. Civic engagement involving all stake holders in the South African formal beef markets is essential for the establishment and maintenance of a differentiated organic beef niche market which adheres to set standards in order to ensure trust amongst all stakeholders. Recommendations for future research include studies on sensory evaluation could be conducted to determine preferences between organic and conventional beef in South Africa. Further studies are required to determine production efficiency of communal farming systems with regards to organic beef production in order to inform policy and facilitate the establishment of organic beef production standards. Studies comparing the chemical composition between organic and conventional beef are also required.
Rural households' perception of the effect of climate change on food security in uMzinyathi District Municipality of KwaZulu-Natal, South Africa.
(2015) Shisanya, Stephen Odede.; Mafongoya, Paramu L.
The study examined in specific terms the interaction between household food security and rural farming communities’ perception of climate change in uMzinyathi District Municipality of KwaZulu-Natal, South Africa. A survey was conducted among 200 households randomly selected from five wards. Households were randomly selected from villages and only those household members at the age of at least 40 years and participating in agricultural activities were asked to volunteer to participate in the survey. Focus group discussions and key informant interviews were carried out to obtain qualitative data. Data was then analysed using the Statistical Package for the Social Sciences (SPSS). The results show that communities’ perception of climate change matched the quantitative data of climate of the area. The study area is becoming hotter and drier. Over the period 1993 – 2010, average annual temperature had increased by 1.5oC. Rainfall generally decreased over the period 1981 - 2010 with the years 2004, 2007 and 2010 recording the least rainfall amounts of 368mm, 296mm and 319mm respectively below annual average rainfall of 784mm. Households observed increased frequency (73.0%) of droughts while incidences of floods had decreased over time by 52.0%. Households were evenly distributed across the five vulnerability categories with extreme categories of 18% households being very highly vulnerable and 20% being less vulnerable. The results confirmed that indeed households were experiencing climate change and that they are reacting to this change by adopting differing agricultural and non-agricultural practices. A large proportion (83%) of households anticipate that they will alter their livelihoods systems to respond to climate change with 59% of households indicating that government grants will play an important role in their adaptation to climate change. Households assessed (97%) were found to be severely food insecure while 3% were moderately food insecure. Households were worried about the negative impacts of climate change which included droughts, floods and soil erosion. Households who were found to be vulnerable to climate change recorded high levels of food insecurity. Perceptions of communities to climate change should be considered by policy makers in advancing strategies to mitigate impacts of climate change. Households are not homogenous and experience vulnerability to climate change differently, recommending that blanket interventions for communities should not be used to mitigate climate change but household specific interventions should be considered. Households will effectively adapt to a changing climate by governments putting in place mechanisms that will help finance the adaptation interventions. Capacity of households should be built through extension services so that 11 households are well prepared to effectively undertake appropriate adaptation methods. Rural farmers should be assisted with packages that can help them undertake effective adaptation mechanisms to climate change. Information will play a critical role in ensuring farmers can do what is within their means to address household food security in a changing climate.
Nutritional, sensory and health-promoting properties of provitamin A-biofortified maize stiff porridges and extruded snacks.
(2015) Beswa, Daniso.; Siwela, Muthulisi.; Dlamini, Nomusa R.; Amonsou, Eric Oscar.; Kolanisi, Unathi.
Provitamin A-biofortified maize has been developed to contribute to the alleviation of vitamin A deficiency (VAD), which is prevalent in the sub-Saharan African region where vitamin A- deficient white maize is a leading staple. The biofortified maize is new compared to white maize and as such its grain properties, including milling, nutritional composition (save provitamin A composition) and sensory characteristics, are barely known. There is a challenge in the adoption of the biofortified maize as a food crop due to its low consumer acceptance, which necessitates more consumer studies. Furthermore, there is a need to develop high value commercial food products using provitamin A-biofortified maize to promote its wide spread utilisation and thereby enhance the vitamin A status of the population. The milling and nutritional properties of grains of 34 varieties of provitamin A-biofortified maize were assessed relative to a white variety (control/reference). The milling properties of the biofortified varieties as indicated by the milling index (69.9-112.1) and hectolitre mass (65.8-82.9 kg/hl) were better compared to 93.5 and 78.5 kg/hl of the white variety, respectively. The ash content of one biofortified maize variety PVAH 48 was comparable to that of the white variety (1.02 g/100 g), whilst five biofortified varieties showed significantly high Fe content (25.67-70.33 mg/kg) compared to the white variety (20.67 mg/kg). The protein (9.8-12.8 g/100 g) and lysine (0.16-0.37 g/100 g) content of the biofortified varieties were significantly high compared to 10.5 g/100 g and 0.21 g/100 g of the white variety, respectively. The sensory quality of stiff porridges made with provitamin A maize varieties were evaluated using descriptive analysis and the 5-point facial hedonic test by a trained panel and an untrained consumer panel, respectively. The provitamin A maize porridges were described as having a cooked maize flavour and aroma, sticky, fine with low intensity of residual grain and slight bitter aftertaste. Provitamin A carotenoid retention in the porridges was determined. Provitamin A carotenoid retention in the porridges was considerably high (91-123%). Relative to white maize porridge, the biofortified porridges were fairly acceptable, although their acceptability seemed to be reduced by their stickiness and bitter aftertaste. Leaf powder of Amaranth (Amaranthus cruentus), a vegetable widely consumed by rural communities in Southern Africa and reported to have good nutritional and health-promoting properties, was used to partly replace flours of four biofortified maize varieties at 0%, 1% and 3% (w/w) and extruded into snacks. The effects of Amaranth addition on the quality and health-promoting potential of the snacks was assessed, as well as the physical and sensory quality. The physical and sensory qualities of the extruded snacks, in terms of texture and expansion, tended to decrease with increasing Amaranth concentration. However, as Amaranth concentration was increased, the levels of many nutrients (including provitamin A carotenoids and protein) as well as health-promoting potential as indicated by phenolic content (31.0-98.7 mg of GAE/g dry weight) and antioxidant activity (114.3-186.7 μmol TE/g dry weight) also increased. The less acceptable sensory attributes observed in the biofortified maize should be attenuated through the manipulation of food product formulations. Other plant materials, such as Amaranth, can be used to enhance the nutritional and health-promoting properties of provitamin A-biofortified maize foods. Provitamin A-biofortified maize seems to have a potential for use in the alleviation of VAD and the general enhancement of food and nutrition security, as well as overall wellbeing.
Microbial ecology and diversity of Swazi traditional fermented foods.
(2016) Simatende, Protus.; Siwela, Muthulisi.
Abstract available in PDF file.
Women empowerment in agriculture : agency and institutions for improved market access and household food security in Limpopo Province.
(2016) Murugani, Vongai Gillian.; Chitja, Joyce Magoshi.
Developing the smallholder agricultural sector has been proposed as a way of developing rural communities. These assertions are partly based on the results of the Asian Green Revolution. Women’s contribution to agricultural development as workers and farmers is acknowledged, but, what is questioned is the extent to which agriculture will result in their empowerment. Local institutions and social norms have largely resulted in women owning and controlling very few productive assets and this is thought to contribute to their disempowerment. It is argued that unless women are empowered through transformed institutions, they may be further disempowered by any interventions to uplift smallholder farmers. Empowering women is considered an essential part of sustainable development and agriculture offers the right platform, since it employs almost half of the rural women in the developing world. Although they are the backbone of smallholder agriculture, female smallholder farmers do not always fully benefit from their work, particularly financially. Their limited access to productive resources and their exclusion from formal markets restricts their capacity to contribute more to agriculture and household food security. Women’s contribution to decision-making has long been used as a proxy measurement for empowerment. For empowerment to take place women must have access to resources and the agency required to transform their resources into livelihoods outcomes. In spite of their aspirations to increase production and access markets, prevailing institutional and social norms may limit female smallholder farmers from achieving their goals. Transformed agricultural, social and market institutions and secure access to productive resources are important to improve women’s productivity and raise the numbers of women participating in formal markets. This study was grounded in the Sustainable Livelihoods Framework and people-centred approaches to development. Research was conducted in three purposively selected irrigation schemes in Limpopo Province, to assess the current institutions and their effect on smallholder market access, to determine the level of empowerment in the study area and the determinants of market access and finally to measure the effect of women empowerment on household food security. A mixed methods approach was used in the study and data was collected in August and December 2013, using questionnaires from purposively selected respondents, observations and focus group discussions. The December survey was conducted using an adapted Women Empowerment in Agriculture Index (WEAI) questionnaire. The quantitative data was analysed using Statistical Package Social Sciences (SPSS) for descriptive statistics and to generate the 5DE index, farmer GPI and modified WEAI. The qualitative data was analysed using content analysis. The results show that, firstly, the current institutions restrict farmers to subsistence farming as there are few capacity building initiatives in the communities. Secondly, just over half of the respondents were empowered and were at par with their male colleagues. The women’s adequacy in the access to credit and leisure satisfaction indicators contributed least to women’s empowerment. Finally, the study showed that the households were predominantly food secure, although there was a relationship between women empowerment and food security. In conclusion, the importance of institutions in defining the opportunity structure and as enablers of agency is demonstrated by the prevalence of predominantly subsistence-oriented agriculture in the study. Empowerment is a complex process that requires a combination of personal attributes and an environment which is enabling. It is recommended that the government departments and non-governmental organisations (NGO’s) working in the community work to address women’s secondary access to resources, capacity building needs of extension officers and smallholder farmers and to integrate the different training activities currently available to smallholder farmers.
Utilisation of Provitamin A biofortified maize in Ovambo chickens to improve food and nutrition security.
(2016) Odunitan-Wayas, Feyisayo Adeola.; Chimonyo, Michael.; Kolanisi, Unathi.; Siwela, Muthulisi.
The broad objective of the study was to determine the effect of provitamin A biofortified maize (PABM) inclusion, sex and age on growth performance, carcass traits, blood composition, meat quality, vitamin A content, nutritional value and consumers’ acceptability of Ovambo chickens. The aim of the study was to evaluate the potential of delivering provitamin A in yellow-orange biofortified maize to vitamin A deficient -vulnerable population groups who prefer provitamin A-devoid white maize. This was achieved through feeding indigenous chickens on the PABM with the expectation that the chicken carcass would have increased concentrations of vitamin A. A total of 102 Ovambo chickens, indigenous to southern Africa, were reared and fed two dietary treatments; the control, white maize (WM) and a PABM-based diet for nine weeks. There was no significant effect of diet on the average daily gain (ADG), average daily feed intake (ADFI) and feed conversion ratio (FCR). Male birds had higher (P<0.05) ADFI and ADG than the female birds. There was also an interaction of diet, age and sex on ADG and ADFI. Male birds fed on the PABM had higher (P<0.05) ADFI at 15 weeks and 21 weeks of age than the WM fed male birds. Male birds had higher (P<0.05) ADG than the female birds at 15- 17 weeks of age. Male birds fed on the PABM diet had a significantly higher ADG at 16 weeks of age. The PABM fed female birds had a higher ADG than the WM fed females at all weeks except 21 weeks of age and was significantly higher at 19 weeks of age. The PABM fed female birds had significantly lower FCR at 20 weeks than the WM fed female birds. The male birds had higher (P<0.05) FCR at 21 weeks than the female birds. The PABM diet had a significant effect on the dressed carcass (DC) and leg weight of the birds. Female birds had higher (P<0.05) relative breast and back weights, whilst the male birds had higher body weights (BW) and leg weights (P<0.05). The DC, leg (thigh and drumstick) and back relative weight of the birds significantly increased as the ages at slaughter increased. The PABM fed birds had a significantly higher relative weight of gizzard and liver than the WM fed birds (P<0.05). The female birds had higher gizzard and liver weights than the male birds (P<0.05). The gizzard and liver weights of the birds decreased with increasing age. The relative heart weight of the male birds increased with age and was higher than that of the female birds (P<0.05). The PABM diet increased the packed cell volume (PCV) of the birds and the leucocytes (WBC) of the PABM fed female birds were within the normal range but significantly higher than the WM fed female birds. The mean corpuscular haemoglobin (MCH) of females fed on PABM was lower than that of the PABM fed male birds and the WM fed female birds. All the mean values of the haematological parameters were within the normal range regardless of the age, sex and diet of the birds. Age had an effect (P<0.05) on alanine transaminase (ALT), total protein (TP), GLOB, triglycerides (TRI) and uric acid (UA). The sex of the birds significantly influenced the TP, GLOB, ALB, CREAT and TRI concentrations. The interaction of diet and age had a significant influence on the ALP, ALT and GLOB concentrations. The PABM diet, sex and age of the birds or their interactions had no significant overall effect on the pH, drip loss (%), cooking loss (%) and shear force of meat (P>0.05). The meat and skin of PABM fed chickens had higher Hunter a* (redness) and b* (yellowness) and lower Hunter L* (lightness) values. The skin of the female birds had higher Hunter L* (lightness) values than that of the males (P<0.05). As the age of the birds increased, the skin of the WM fed females became lighter (Hunter L* values increased), whilst the intensity of the yellow colour of the skin of the PABM fed male birds increased (a* values increased) (P<0.05). The PABM improved the vitamin A concentration in the Ovambo breast meat. The WM fed chicken meat had an average of 40mcg/100g while the PABM diet increased the vitamin A concentration to 55mcg/100g. Sex and the interaction of diet and sex did not significantly affect the vitamin A concentration in the Ovambo meat. The PABM and sex had no significant effect on the moisture, crude protein and fat content of the meat. The ash content of the meat of the female birds was higher (P<0.05) than that of the male birds. The sex of the bird and diet had no effect on the mineral composition of the muscle. The interaction of sex and PABM diet impacted on the copper concentration of the Ovambo chicken meat. The sensory characteristics of the meat of the PABM and WM fed chickens were not significantly different. Age and gender of the consumers and their interactions had no significant effect on the acceptability of all the sensory attributes of the Ovambo chicken meat evaluated. The findings of this study concluded that indigenous chickens fed PABM can be a tool for curbing VAD and improving the meat quality of indigenous chickens in southern Africa regions.
Impact of cash cropping on smallholder farming households’ food security in Shamva District, Zimbabwe.
(2017) Rubhara, Theresa Tendai.; Mudhara, Maxwell.
Over 1.5 million Zimbabweans were food insecure in the 2015/2016 season, with the majority being in the rural areas. Land reform programmes have been implemented to improve the livelihoods of smallholder farmers. Smallholder farmers now constitute over 90% of farmers. There is a drive to commercialise small-scale agriculture by increasing the smallholder farmers’ involvement in cash crop production. However, despite those efforts, food insecurity remains high in the smallholder farming sector. As farmers shift towards cash crop production, an understanding of the implications of this shift on the household food security level is required. The objective of the study was to analyse factors determining cash crop production choices at the household level and the impact of such choices on household food security status. The research was conducted in Shamva district, Mashonaland Central Province of Zimbabwe. Data was collected in 2016 through a survey of 281 randomly selected households. Data was analysed using the SPSS and STATA. Analysis of Variance (ANOVA) and independent t tests for mean area under different crops were used for analysis of crop production patterns guided by the Sustainable Livelihoods Framework. The Tobit regression models were used to measure determinants of commercialisation and impact of cash cropping on food security in chapters four and five respectively. The independent t-test was used to test for significance in average monthly income and expenditure between male-headed and female-headed households. The Ordinary Least Squares (OLS) was also used to model the determinants of household food expenditure. Maize and groundnuts were the main food crops grown in the area. About 95% of the sampled households grew maize in the 2015/2016 season and used about 61% of the total cultivated area. Tobacco covered 17% of the area and was the main cash crop. Male-headed household had more access to markets (p<0.1) and extension services (p<0.05) than female-headed households. Statistically significant differences between male-headed and female-headed (p<0.01) were observed in cash crops production with female-headed households planting less tobacco than male-headed households do. The average yield per hectare of maize (p<0.01) and tobacco (p<0.01) was significantly higher in A1 resettlement than communal farmers. The household commercialisation index, a ratio of marketed output to the value of crops produced captured the level of cash cropping. The average household commercialisation level was 0.45 implying that farmers sell less than half of the value of their produce. Household characteristics such as the age of household head (p<0.01) and gender of household head (p<0.05) influenced commercialisation. Furthermore, resource endowments such as labour (p<0.1) and number of cattle (p<0.05) also positively affected farmers’ decision to commercialise. Non-far income (p<0.05) was negatively associated with commercialisation. The target group for commercialisation interventions should be smallholder farmers with fewer sources of income as they are likely to be motivated to grow more cash generating crops. Descriptive statistics showed low levels of access to agricultural finance (6.76% of households had access to finance), albeit, its importance in improving production and commercialisation levels. Since communal land holding was negatively associated with commercialisation future land redistribution should continue to decongest smallholder farmers and provide them with support. Communal farmers with increased support are more likely to commercialise. Household Food Insecurity Access Scale (HFIAS) measured food security. The mean HFIAS was 1.89 implying a higher level of food security. Cash crop production had a significantly positive (p< 0.01) impact on food security. A unit increase in the proportion of cash crop resulted in an increase in food security by 4.3 units. This implies Cash crop production ensures that farmers can have more income that can be used for purchasing of food at the household level, thus improving their diet quality. Cash crop production only should not be regarded as a panacea to food security as quantity of maize harvested (p<0.05) had a direct positive impact on food security. Policies that target food crop production only as a means for ensuring food security maybe unsustainable in the end. Therefore, there is need for combining both cash and food crops. Other variables significantly positively influencing food security included non-farm income (p<0.05), access to markets (p<0.1) and access to draft power (p<0.05). However, household size (p<0.1) was negatively associated with food security. The main sources of farm income were cash crop sales, food crop sales and livestock sales, contributing, 64% of the annual household cash income. Food expenditure constituted the main expenditure category and accounted for over 60% of total expenditure. The variables household size (p<0.01), dependant ratio (p<0.05) and income (p<0.01) positively affected household food expenditure. The study revealed that improved cash crop production may be an option for improving food security as it provides an immediate source of farm income. There is need for further research to derive optimum combinations of cash and food crops in the crop mixture for smallholder farmers to achieve food security. Stakeholders including government and marketing firms should promote commercialisation by improving access to services such as finance and extension. Furthermore, opportunities for off-farm livelihoods options should be developed since non-farm income was also positively significantly associated with food expenditure and food security.
Gender adaptive capacity to climate variability and change in pastoral communities : case study of Turkana in North-western Kenya.
(2017) Omolo, Nancy Akinyi.; Mafongoya, Paramu L.
Recurrent droughts due to climate change have led to the vulnerability of the pastoralist communities, leading to loss of assets and food insecurity. Climate change will have different impacts on women and men’s livelihoods. This specific study examined the relationships between gender and adaptive capacity to climate variability among pastoral communities in Turkana in north-western Kenya. This study used triangulation method which includes: the quantitative household survey data, focus group discussions (FGDs), a literature review of secondary data sources and key informant interviews (KIIs). Data was then analyzed using the Statistical Package for the Social Sciences (SPSS). Focus group discussions and key informant interviews were carried out to obtain qualitative data. This survey adopted stratified random sampling. The unit of analysis was the individual household. The target respondents of the closed/structured survey questionnaires were based on gender (either a female-headed household or male-headed household). The total sample size used in this study was 379 households. Findings from this study revealed that all respondents surveyed have witnessed a change in weather in the last 10 years. The study indicated that vulnerability to climate change is influenced by gender with elderly women being the most vulnerable in the area. The study revealed that participating in decision making and access to basic services were the most important in influencing the resilience of pastoralists.
The potential of Moringa oleifera (Lam.) leaves for use in complementary foods to combat child food and nutrition insecurity among South African rural and peri-urban communities.
(2017) Ntila, Sithandiwe Linda.; Siwela, Muthulisi.; Kolanisi, Unathi.; Abdelgadir, Hafiz Ahmed.; Ndhlala, Ashwell Rungano.
The inadequate nutritional quality of complementary foods is a major public health problem in developing countries such as South Africa, and contributes towards the reported high rates of child malnutrition. Consequently, there is an urgent need to investigate interventions aimed at improving the nutritional quality of complementary foods. The aim of this study was to assess the potential of Moringa oleifera (Lam.) leaves for use in complementary foods to combat food and nutrition insecurity amongst children in South African communities. Mothers from Lebowakgomo village in Limpopo province (n=106) and Hammanskraal Township in Gauteng province (n=106), were recruited on a voluntary basis to participate in the survey which assessed the food and nutrition security status of their children, aged 7-12 months old. Additionally, six focus group discussions were conducted per study area to assess mothers’ perceptions about children’s food access and to further establish a recipe for a popular traditional cereal-based complementary food. The Children’s Food Insecurity Access Scale (CFIAS) was used to assess the food security status (access) of the children. The Individual Dietary Diversity Score (IDDS) together with the unquantified food consumption frequency survey were used as a proxy measure of the nutritional quality of the children’s diets. The age and weight of the children were obtained from the children’s clinic health cards and were used to calculate Weight-for-Age Z scores (WAZ). These values were interpreted to determine the prevalence of underweight children. The popular cereal-based traditional complementary food recipe (white maize soft porridge) used by mothers from the studied communities was modified by substituting maize meal with MLP at 1, 2 and 3% (w/w) levels. The nutritional, phytochemical and antioxidant analysis of the popular traditional complementary soft porridge (control) and Moringa-added porridges (test samples) were determined using standard methods. The sensory acceptability of the porridges was evaluated by the mothers who were recruited on a voluntary basis (n= 60 per study area) and six focus group discussions were conducted per study area to assess mothers’ perceptions on the inclusion of Moringa in complementary foods. The findings of the survey showed that a large percentage of children were severely food-insecure, 87% and 78%, at Lebowakgomo and Hammanskraal, respectively. Additionally, children from Lebowakgomo (23.6%) and Hammanskraal (17.9%) were severely underweight. Overall, children’s diets in both study areas were characterized by nutrient-deficient complementary foods. Cheaper foods with a higher satiety value such as white maize meal (WMM) and sugar were the most commonly purchased and used. Hence, the children consumed very limited amounts of foods rich in proteins, minerals, and vitamins, which significantly increased the risk of malnutrition. As the MLP was increased from 0 to 3% in the Lebowakgomo white maize soft porridge, a corresponding significant increase in nutrient content was observed: ash (from 0.52 to 0.87 g/100 g), calcium (0.01 to 0.09 mg/100 g), potassium (0.10 to 0.14 mg/100 g), protein (8.70 to 9.68 g/100 g), threonine (0.14 to 0.66 g/100 g), glutamine (1.28 to 1.56 g/100 g), provitamin A (0.81-1.16 μg/g), lutein (0.04-0.30 μg/g), zeaxanthin (0.21-2.18 μg/g), β-cryptoxanthin (0.11-0.14 μg/g), β-carotene (0.25-0.50 μg/g) and 9-cis-β-cryptoxanthin (0.25-0.31 μg/g). Increasing the MLP from 0 to 3% in the soft porridge at Hammanskraal, caused a significant increase in the levels of iron (from 52.50 to 101.0 mg/100 g), manganese (1.00 to 4.00 mg/100 g), phenylalanine (0.35 to 0.47 g/100 g), provitamin A (0.87-1.01 μg/g), lutein (0.05-0.22 μg/g), zeaxanthin (0.22-1.29 μg/g) and β-carotene (0.27-0.39 μg/g). Additionally, the antioxidant activity, total phenolic and flavonoid contents of Hammanskraal and Lebowakgomo white maize soft porridges increased as the concentration of MLP was increased. The sensory evaluation results showed that the acceptance of each of the two traditional complementary foods decreased as the level of MLP increased. Mother’s indicated in the focus group discussions that Moringa-added soft porridges had a bitter taste, which would not be suitable for children. Only the Moringa-added soft porridge from Lebowakgomo containing 1% of Moringa was rated similar in overall acceptability as the corresponding white maize soft porridge (control). Nevertheless, all mothers expressed willingness to use Moringa in complementary foods if they would be trained on how to process it into foods suitable for children. There is a need to vary product formulation and processing methods, which may contribute to increased acceptance of Moringa-based foods. Additionally, the safety of using MLP in complementary foods should be investigated.

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