Comparison of broad data base & scarce data base situations, where modelling can play a positive role in research towards livestock production systems in Africa, w. specific examples from Botswana and Mali.
Anderson, F.M.
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Trail, J.C.M.
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[Initial application of modelling techniques in livestock production systems under semi-arid conditions in Africa]
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Initial application of modelling techniques in livestock production systems under semi-arid conditions in Africa
Discusses the historical context of ILCA's research, the principal types of animal production systems and the stages in ILCA's farming systems research. Describes the smallholder farming in the Ethiopian highlands & humid zone, the agropastoralists of the sub-humid zone, systems research in pasto...
Gryseels, Guido
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McIntire, John M.
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Anderson, F.M.
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[La recherche sur les systemes agraires ("RSA") au CIPEA]
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La recherche sur les systemes agraires ("RSA") au CIPEA
Presents results of a former survey conducted to establish a baseline understanding of the production system at Elangat Wuas group ranches in Kajiado district, Kenya. Describes the ranch in relation to rainfall, infrastructure, vegetation & land units and nutritional value of the range. Discusses...
Bille, Jean-Claude
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Anderson, F.M.
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[A synthesis of observations on Elangata Wuas group ranch in Kajiado District]
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A synthesis of observations on Elangata Wuas group ranch in Kajiado District
Summarises the results of on-farm research conducted by the Highlands Programme (ILCA) in order to improve smallholder livestock productivity in the Ethiopian Highlands. Outlines the farming system around Debre Berhan. Discusses on farm trials and research activities on the integration of crossbr...
Gryseels, Guido
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Anderson, F.M.
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Asamenew, G.
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Mesgina, A.
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Astatke, A.
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Wolde-Mariam, W.A.
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[On-farm research to improve smallholder livestock productivity in the Ethiopian highlands]
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On-farm research to improve smallholder livestock productivity in the Ethiopian highlands
Presents a cattle herd simulation model which is time dynamic, stochastic, non-optimizing & integer and permits the evaluation of herd performance under alternative production regimes; discusses the analytical background to the biological relationships represented in the model, describes detailed...
Konandreas, P.A.
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Anderson, F.M.
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[Cattle herd dynamics: An integer and stochastic model for evaluating production alternatives]
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Cattle herd dynamics: An integer and stochastic model for evaluating production alternatives
Describes a dynamic & stochastic simulation model, specifying its driving variables & validating it for production conditions in a study area in Botswana. Compares the simulated performance of Tswana & Simmental x Tswana cattle, analysing economic trade-offs between milk & meat production under v...
Konandreas, P.A.
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Anderson, F.M.
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Trail, J.C.M.
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[Economic trade-offs between milk and meat production under various supplementation levels in Botswana]
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Economic trade-offs between milk and meat production under various supplementation levels in Botswana
Reports the effect of draught on milk production, reproductive and productive performance of crossbred dairy cows which had completed the first two lactations. Evaluates ways and means of reducing the effective number of draught animals needed to support agricultural production in the Ethiopian h...
Agyemang, K.
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Astatke, A.
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Anderson, F.M.
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Wolde-Mariam, W.A.
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[Effects of work on reproductive and productive performance of cross-bred dairy cows in the Ethiopian highlands]
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Effects of work on reproductive and productive performance of cross-bred dairy cows in the Ethiopian highlands
Investigates the potential benefits of restricted suckling of crossbred cows in the Ethiopian highlands with special emphasis on maximising the efficiency of resoruce utilisation. Examines nutrient concentrations in grass hay fed and refused, and productivity characteristics of crossbred cows and...
Little, D.A.
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Anderson, F.M.
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Durkin, J.W.
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[Influence of partial suckling of crossbred dairy cows on milk offtake and calf growth in the Ethiopian highlands]
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Influence of partial suckling of crossbred dairy cows on milk offtake and calf growth in the Ethiopian highlands
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.
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Gryseels, Guido
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Durkin, J.W.
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[Factors affecting smallholder grain production in the Ethiopian highlands]
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Factors affecting smallholder grain production in the Ethiopian highlands
Presents Simmond's recent classifiation of Farming Systems Research followed by overviews of the FSR in progress at several International Agriculural Research Centres. Summarises the activities of 10 centres involved in Farming Systems Research in eastern and southern Africa. Discusses the issues...
Anderson, F.M.
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Dillon, John L.
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[Farming systems research at the International Agricultural Research Centres and other international groups]
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Farming systems research at the International Agricultural Research Centres and other international groups