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Report 1984

Autor: Trail, J.C.M. Gregory, K.E.

Describes the main ecological zones of Africa and mentions the importance of cattle in each zone, the production systems involved and the general types of cattle that can be maintained. Determines the value of previous breed productivity research in assessing current decision making.

Enlace original: https://cgspace.cgiar.org/handle/10568/50158

Investigación en Agricultura
Enlace permanente
Trail, J.C.M. ,  Gregory, K.E. ,  [Animal breeding in sub-Saharan Africa: Toward an integrated program for improving productivity] ,  Animal breeding in sub-Saharan Africa: Toward an integrated program for improving productivity
Report 1983

Autor: Konandreas, P.A. Anderson, F.M. Trail, J.C.M.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/4676

Investigación en Agricultura
Enlace permanente

Konandreas, P.A. ,  Anderson, F.M. ,  Trail, J.C.M. ,  [Economic trade-offs between milk and meat production under various supplementation levels in Botswana] ,  Economic trade-offs between milk and meat production under various supplementation levels in Botswana
Report 1992

Autor: Trail, J.C.M. D'Ieteren, G.D.M.

Considerable progress has been made in defining and measuring criteria of trypanotolerance since the late 1970's, when ILCA, FAO and UNEP worked with researchers in 18 West and Central African countries to show clear relationship between level of trypanosomiasis risk and animal performance. Durin...

Enlace original: https://cgspace.cgiar.org/handle/10568/50932

Investigación en Agricultura
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Trail, J.C.M. ,  D'Ieteren, G.D.M. ,  [Phenotypic and genetic parameter estimates of factors related to the performance of trypanotolerant livestock] ,  Phenotypic and genetic parameter estimates of factors related to the performance of trypanotolerant livestock
Report 1991

Autor: Trail, J.C.M. D'Ieteren, G.D.M. Murray, M.

This paper reviews studies on the relationships between trypanotolerance and performance of cattle, and the genetics of trypanotolerance traits. Results of these studies are used to discuss the practical possibilities of increasing trypanotolerance through selection.

Enlace original: https://cgspace.cgiar.org/handle/10568/50956

Investigación en Agricultura
Enlace permanente
Trail, J.C.M. ,  D'Ieteren, G.D.M. ,  Murray, M. ,  [Practical aspects of developing genetic resistance to trypanosomiasis] ,  Practical aspects of developing genetic resistance to trypanosomiasis
Report 1986

Autor: Kiwuwa, G.H. Trail, J.C.M. Yousef, M.K. Worku, G. Anderson, F.M. Durkin, J.W.
Enlace original: https://cgspace.cgiar.org/handle/10568/91148

Investigación en Agricultura
Enlace permanente
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

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