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Discusses factors influencing grain production in a representative and risky farming system in the Ethiopian highlands, with quantitative evidence of the critical contribution of draft oxen to farm grain production by comparing yield and area cultivated between farmers who are ox-owners and those...


Anderson, F.M.Gryseels, GuidoDurkin, J.W.[Factors affecting smallholder grain production in the Ethiopian highlands]Factors affecting smallholder grain production in the Ethiopian highlands
Trail, J.C.M.Durkin, J.W.Light, D.E.[Extraction, handling, analysis and interpretation of production data]Extraction, handling, analysis and interpretation of production data

Studies the efficacy of chemoprophylaxis for the control of trypanosomiasis on 700 heads of East African Zebu Cattle maintained in village herds in a tsetse-infested area at Muhaka, Coast province of Kenya. Shows the effect of trypanocidal drugs and time on trypanosome prevalence, and the effect ...


Maloo, S.H.Chema, S.Connor, R.J.Durkin, J.W.Kimotho, P.G.Maehl, H.M.Mukendi, F.Murray, M.Rarieya, J.M.Trail, J.C.M.[Efficacy of chemoprophylaxis for East African Zebu cattle exposed to trypanosomiasis in village herds in Kenya]Efficacy of chemoprophylaxis for East African Zebu cattle exposed to trypanosomiasis in village herds in Kenya

Mkwaja Ranch is located on the coast of Tanzania in Pangani District about 100 km south of Tanga. The ranch covers an area of 47,250 hectares of coastal forest-savanna mosaic vegetation. The area is heavily infested with three species of tsetse, Glossina morsitans morsitans, G. pallidipes and G. ...


Jibbo, J.M.C.Trail, J.C.M.Sones, Keith R.Durkin, J.W.Light, D.E.Murray, M.[Productivity of Boran cattle maintained with chemoprophylaxis under high tsetse challenge at Mkwaja ranch in Tanzania. 1. Ranch organization and animal health management]Productivity of Boran cattle maintained with chemoprophylaxis under high tsetse challenge at Mkwaja ranch in Tanzania. 1. Ranch organization and animal health management

Compares two series of breed groups of cows for maternal traits from a three-year study in Kenya to identify breed crosses that are superior to the Boran purebreds; considers age at first calving, calving interval, calf weight at weaning, cow weight at weaning, calf mortality to weaning and cow p...


Trail, J.C.M.Gregory, K.E.Durkin, J.W.Sandford, J.[Crossbreeding cattle in beef production programmes in Kenya. II. Comparison of purebred Boran and Boran crossed with the Red Poll and Santa Gertrudis breeds]Crossbreeding cattle in beef production programmes in Kenya. II. Comparison of purebred Boran and Boran crossed with the Red Poll and Santa Gertrudis breeds

Reports results related to a 4-year study of early reporductive traits in traditionally managed flocks of indigenous goats and sheep under semi-arid conditions; compares animals raised under the irrigated rice system and the rainfed millet system, animals born of young, middle aged and old dams, ...


Wilson, R.T.Durkin, J.W.[Livestock production in central Mali: Weight at first conception and ages at first and second parturitions in traditionally managed goats and sheep]Livestock production in central Mali: Weight at first conception and ages at first and second parturitions in traditionally managed goats and sheep

Evaluates the productivity of grade Boran cattle maintained by chemoprophylaxis under severe trypanosomiasis risk at Mkwaja ranch, Tanzania; uses data based on more than 20,000 calving records over the 10-year period from 1973 to 1982; discusses environmental influences on performance traits and ...


Trail, J.C.M.Sones, Keith R.Jibbo, J.M.C.Durkin, J.W.Light, D.E.Murray, M.[Productivity of Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk]Productivity of Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk
Kiwuwa, G.H.Trail, J.C.M.Yousef, M.K.Worku, G.Anderson, F.M.Durkin, J.W.[Productivité de bovins laitiers métis dans la région d'Arsi en Ethiopie]Productivité de bovins laitiers métis dans la région d'Arsi en Ethiopie

Reproductive performance, mortality, growth, and culling and replacement rates based on 20000 calving records were evaluated for grade Boran beef cattle maintained with trypanosomiasis risk in Tanzania. Under ranching conditions, over a 10-year period in this area of high Glossina moistens morsi...


Trail, J.C.M.Murray, M.Sones, Keith R.Jibbo, J.M.C.Durkin, J.W.Light, D.E.[Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk]Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk

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