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Journal Article 1989

Autor: Wissocq, N.M. Durkin, J.W. Trail, J.C.M. Gettinby, G. Bell, R.J. Berhane, H. Light, D.E.

Provides a brief history of the developmet of IDEAS (the ILCA Data entry and Analysis system) and presents findings from a questionnaire recently used to users to assess the uptake of IDEAS in African Production systems during the first years of its release.

Enlace original: https://cgspace.cgiar.org/handle/10568/28434

Investigación en Agricultura
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Wissocq, N.M. ,  Durkin, J.W. ,  Trail, J.C.M. ,  Gettinby, G. ,  Bell, R.J. ,  Berhane, H. ,  Light, D.E. ,  [Uptake of a microcomputer database package to assist livestock management decisions in Africa] ,  Uptake of a microcomputer database package to assist livestock management decisions in Africa
Journal Article 1982

Autor: Cartwright, T.C. Anderson, F.M. Buck, N.G. Nelsen, T.C. Trail, J.C.M. Pratchett, D. Sanders, J. Astle, W. Light, D.E. Rennie, T.W. Rose, T.J. Shorrock, C.

Discusses use of mathematical modelling as a research tool to evaluate alternative practices, illustrating its application in beef cattle production systems in Botswana, with a description of data inputs, model utilized & simulations carried out. Compares actual & simulated values and examines ef...

Enlace original: https://cgspace.cgiar.org/handle/10568/28626

Investigación en Agricultura
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Cartwright, T.C. ,  Anderson, F.M. ,  Buck, N.G. ,  Nelsen, T.C. ,  Trail, J.C.M. ,  Pratchett, D. ,  Sanders, J. ,  Astle, W. ,  Light, D.E. ,  Rennie, T.W. ,  Rose, T.J. ,  Shorrock, C. ,  [Systems modelling in cattle production - an application in Botswana] ,  Systems modelling in cattle production - an application in Botswana
Journal Article 1984

Autor: Durkin, J.W. Light, D.E. Maehl, H.M. Trail, J.C.M.

Examines some of the problems encountered and provides information on computer networking and the potential of computers in livestock research; describes the ILCA computer facility and the services which ILCA provides to national research organizations that do not have computer facilities.

Enlace original: https://cgspace.cgiar.org/handle/10568/10881

Investigación en Agricultura
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Durkin, J.W. ,  Light, D.E. ,  Maehl, H.M. ,  Trail, J.C.M. ,  [Le materiel informatique du CIPEA et son utilisation] ,  Le materiel informatique du CIPEA et son utilisation
Journal Article 1986

Autor: Wilson, R.T. Light, D.E.

A study on the econmic characters and productivity indices of traditionally managed goats and sheep undertaken in a semi-arid, agropastoral system in central Mali. Discusses reproductive characters including litter size and parturition interval, and weight characters.

Enlace original: https://cgspace.cgiar.org/handle/10568/32980

Investigación en Agricultura
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Wilson, R.T. ,  Light, D.E. ,  [Livestock production in central Mali: Economic characters and productivity indices for traditionally managed goats and sheep] ,  Livestock production in central Mali: Economic characters and productivity indices for traditionally managed goats and sheep
Journal Article 1984

Autor: Trail, J.C.M. Murray, M. Sones, Keith R. Jibbo, J.M.C. Durkin, J.W. Light, D.E.

Evaluates the productivity of Boran cattle maintained with chemoprophylaxis in an area of massive Glossina morsitans sub morsitans, G. pallidipes et G. Brevipalpis challenge at Makwaja ranch, in Tanzania and analyses the effect of a chemoprophylactic drug (isometamidium chloride) on cattle produc...

Enlace original: https://cgspace.cgiar.org/handle/10568/33145

Investigación en Agricultura
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Trail, J.C.M. ,  Murray, M. ,  Sones, Keith R. ,  Jibbo, J.M.C. ,  Durkin, J.W. ,  Light, D.E. ,  [Chemoprophylaxis: Boran cattle can be productive under high tsetse challenge] ,  Chemoprophylaxis: Boran cattle can be productive under high tsetse challenge
Journal Article 1987

Autor: Wilson, R.T. Ward, P.N. Saeed, A.M. Light, D.E.

Quantifies a range of milk production characteristics over a long period of the Kenana, a Bos indicus breed of cattle indigenous to Northern Sudan, with particular reference to lactation yield, lactation strength and calving interval, and determines the effects of environmental including manageme...

Enlace original: https://cgspace.cgiar.org/handle/10568/28890

Investigación en Agricultura
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Wilson, R.T. ,  Ward, P.N. ,  Saeed, A.M. ,  Light, D.E. ,  [Milk production characteristics of the Kenana breed of Bos indicus cattle in Sudan] ,  Milk production characteristics of the Kenana breed of Bos indicus cattle in Sudan
Journal Article 1977

Autor: Trail, J.C.M. Buck, N.G. Light, D.E. Rennie, T.W. Rutherford, A.S. Miller, M. Pratchett, D. Capper, B.

Evaluation of reproductive performance, viability and growth of Afrikander, Tswana, Tuli and crossbred beef cattle in Botswana; data on calving percentage, calf mortality, weaning & birth weights, w. comparison of crossbreeding performance of Tuli, Bonsmara cattle, Brahman cattle & Simmental catt...

Enlace original: https://cgspace.cgiar.org/handle/10568/28257

Investigación en Agricultura
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Trail, J.C.M. ,  Buck, N.G. ,  Light, D.E. ,  Rennie, T.W. ,  Rutherford, A.S. ,  Miller, M. ,  Pratchett, D. ,  Capper, B. ,  [Productivity of Africander, Tswana, Tuli and crossbred beef cattle in Botswana] ,  Productivity of Africander, Tswana, Tuli and crossbred beef cattle in Botswana
Journal Article 1985

Autor: Trail, J.C.M. Murray, M. Sones, Keith R. Jibbo, J.M.C. Durkin, J.W. Light, D.E.

Reports the productivity levels achieved by grade Boran cattle maintained by chemoprophylaxis at Mkwaja ranch (Tanzania) from 1973 to 1982. Analyses the effects of year and season of calving on birth, cow age, calf sex and area & location of herd on performance of the environmental influences. Ev...

Enlace original: https://cgspace.cgiar.org/handle/10568/28827

Investigación en Agricultura
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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
Journal Article 1988

Autor: Tawonezvi, H.P.R. Ward, H.K. Trail, J.C.M. Light, D.E.

Assesses reproductive performance, body weight & live weight, pre-weaning growth, and viability of progeny sired by various unrelated breeds which are representative of the Sanga X Sanga, Sanga X Zebu, Bos taurus X Sanga, Bos taurus X Zebu, and Bos taurus X Bos taurus crossbred groups. Measures t...

Enlace original: https://cgspace.cgiar.org/handle/10568/28277

Investigación en Agricultura
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Tawonezvi, H.P.R. ,  Ward, H.K. ,  Trail, J.C.M. ,  Light, D.E. ,  [Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 2. Productivity of crossbred cows and heterosis estimates] ,  Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 2. Productivity of crossbred cows and heterosis estimates
Journal Article 1988

Autor: Tawonezvi, H.P.R. Ward, H.K. Trail, J.C.M. Light, D.E.

A study conducted to assess weaner production of the indigenous and exotic breeds in Zimbabwe and crossbred cows.

Enlace original: https://cgspace.cgiar.org/handle/10568/28276

Investigación en Agricultura
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Tawonezvi, H.P.R. ,  Ward, H.K. ,  Trail, J.C.M. ,  Light, D.E. ,  [Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 1. Productivity of purebred cows] ,  Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 1. Productivity of purebred cows

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