Abstract. Taenia solium neurocysticercosis is a major cause of adult-onset epilepsy in developing countries. A questionnaire was administered to 282 Kenyan farmers, followed by a workshop, a second questionnaire, one-on-one training, and a third questionnaire. People who attended workshops were more likely to know how T. solium causes epilepsy in humans in the third visit than the second ( P = 0.001). The likelihood that farmers would tether their pigs 100% of the time, limiting exposure to tapeworm eggs, increased after the first ( P < 0.001) and second visits ( P < 0.001). Farmers were more likely to have heard of Cysticercus cellulosae in the second ( P = 0.001) and third visits ( P = 0.007), and to know how pigs acquire infection in the second ( P = 0.03) and third visits ( P = 0.003). Farmers with at least a grade 8 education were more likely to know how T. solium is transmitted to humans in the second ( P = 0.001) and third visits ( P = 0.009), and were more likely to understand the relationship between epilepsy and T. solium in the second ( P = 0.03) and third visits ( P = 0.03). Grade 8 education may enhance learning from written material. Workshops followed by individual on-farm training enhanced knowledge acquisition and behavior changes. Training local government extension workers contributed to the sustainability of this project.

We used face-to-face interviews to gather data on pig feeding practices in rural Busia District, Kenya. We visited 164 pig farms three times in the course of the study period. The pigs were weighed in kilograms during the visits. Feeds offered to pigs were described during the interviews. The most frequently fed feedstuffs were; ground maize or "ugali" (88%), kitchen leftovers (83%) and dried fish locally called "omena" (78%). Farmers provided pigs with water separately from the feeds. Sweet potatoes, "ugali" and cassava were available and could serve as good sources of energy for pigs in the district. Fruits and vegetables were also available and could potentially act as good sources of vitamins. Sweet potato vines, "omena" fish and slaughter blood were available and could provide pigs with proteins. The average daily gain (ADG) for pigs ≤ 5 months of age, pigs of 5.1-9.9 months of age and pigs of ≥ 10 months old was 94.5 (± 43), 127 (± 49.8) and 99 (± 92) g, respectively (p = 0.000). This study has outlined the different local pig feeds available in Busia district. We recommend two things: first, additional research on nutrient composition for the identified local feeds, and second, developing and validating simple local feed combinations that would achieve balanced local pig rations.

The purpose of this cross-sectional, observational study was to describe the pig butcher enterprises in western Kenya; highlighting differences in the operational processes and challenges between rural and peri-urban settings. Fifty pig butchers were interviewed using questionnaires in two districts, Kakamega (peri-urban) and Busia (rural). Results showed that pig butchers were central to the coordination of activities required to connect pig farmers to pork consumers in their communities. Several differences between rural and peri-urban enterprises included use of agents to find pigs, average market weight of pigs, pig prices per kilogram, transport and marketing. Butchers were challenged by credit and capital constraints, seasonality, high pig prices and high search costs. Butchers should be encouraged to have pork inspected and should be included in outreach programs intended to prevent the spread of zoonotic pathogens since they are the last intervention point before pork is consumed. Use of the tape measure for estimating pig weight could help remove inequalities between farmers and butchers abilities to estimate pig weights and could help to reduce search costs for the butcher, thus increasing equity and efficiency of trade between farmers and pig butchers in western Kenya.

A B S T R A C TFarmers and families in western Kenya have grown increasingly dependent on the pig industry as a primary resource for savings and income. The post-election crisis in  had a serious impact on people living in western Kenya because the region was the stronghold of the opposition Orange Democratic Movement (ODM). The pig industry was affected in a number of ways, including an increase in the price of food and farm inputs, sale of pigs to provide food and other essentials for the family, or because of forced migration, leading to a drastic decrease in numbers of pigs. This will have a negative effect on the longterm viability of the pig industry due to decreased availability of growing, breeding and market weight animals.

The purpose of this research is to assess how season, ADG, opportunity costs of farm-grown feeds, pig weight, and butcher price variation impact the economic potential of semi-intensive pig rearing. We developed a unique algorithm that emulates least-cost pig feeding and used it to assess the impact of the aforementioned factors on farmers' maximum revenue and profit potential when pigs are sold to local butchers in western Kenya. When considered as independent factors influencing feed costs to grow a pig to a market weight of 30 kg, variation in ADG, opportunity cost of feed, and weaning season resulted in feed cost differences of up to 982, 947, and 379 Kenyan shillings (KES), respectively. The variation in revenues attributable to butcher or butcher negotiation and seasonal variance of butcher prices for a 30 kg pig was 744 and 225 KES, respectively. Feed items most commonly chosen for least-cost feed rations were small dried fish, cooked ground maize, whole maize, millet, cassava foliage, sweet potato vines, bone meal, avocado, and mango. Smallholder farmers who can feed pigs to reach higher ADG, have lower opportunity costs of feeds and/or who effectively bargain with butchers can benefit from semi-intensive pig rearing. Farmers without access to at least some zero-cost feeds and farmers with opportunity costs of feeds exceeding 50 % of the market price will not earn positive returns from semi-intensive pig rearing.

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