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This volume presents major results obtained since the publication of volume 1 and 2 and updates national data on trypanotolerant cattle. The first part analyses populations and their trends between the two surveys and reviews research activities and development activities. It also gives recent in...


Hoste, Christian H.Chalon, E.D'Ieteren, G.D.M.Trail, J.C.M.[Trypanotolerant livestock in West and Central Africa. Volume 3. A decade's results]Trypanotolerant livestock in West and Central Africa. Volume 3. A decade's results

Review of the classification, geographic distribution, animal performance and productivity of trypanotolerant cattle, sheep and goats in 18 countries of west & central Africa, particularly N'dama cattle, West African Dwarf Shorthorn, and Zebu x N'Dama crossbreeds. Discussion on potential utilizat...


Trail, J.C.M.Hoste, Christian H.Wissocq, Y.J.Lhoste, Ph.Mason, I.L.[Trypanotolerant livestock in West and Central Africa. Volume 1. General study]Trypanotolerant livestock in West and Central Africa. Volume 1. General study
Autor: Trail, J.C.M.

The limited genetic potential of indigenous cattle has often been quoted as a major constraint to beef and milk production in Africa south of the Sahara. Thus, considerable efforts have been and are being made to increase output through breeding programmes in many countries of the continent. Thes...


Trail, J.C.M.[Merits and demerits of importing exotic cattle compared with the improvement of local breeds: Cattle in Africa South of the Sahara]Merits and demerits of importing exotic cattle compared with the improvement of local breeds: Cattle in Africa South of the Sahara

Murray, M.Trail, J.C.M.Grootenhuis, J.G.[Trypanotolerant livestock: Potential and future exploitation]Trypanotolerant livestock: Potential and future exploitation

Discusses factors influencing liveweight in a range of trypanotolerance network situations. Analyses liveweight traits, viz, dam liveweights at parturition and weaning, dam liveweight change between parturition and weaning, progeny liveweights at birth and weaning and progeny pre-weaning daily gain.


Maehl, J.H.H.Coulibaly, L.Defly, A.D'Ieteren, G.D.M.Feron, A.Grundler, G.Hecker, P.Itty, P.Mawuena, K.Morkramer, G.Mulungo, M.Nagda, S.M.Paling, R.W.Pelo, M.Rarieya, J.M.Schuetterle, A.Sheria, M.Thorpe, W.R.Trail, J.C.M.[Factors influencing liveweight in a range of network situations]Factors influencing liveweight in a range of network situations

Studies the health and performance of two strains trypanotolerant N'Dama cattle, susceptible Nguni cattle and their crosses over a three-year period, 1983-1985, at OGAPROV ranch in Gabon; presents the influences of breed and animal age on the prevolence, species and intensity of trypanosome paras...


Ordner, G.Colardelle, C.D'Ieteren, G.D.M.Dumont, P.Itty, P.Jeannin, P.Leak, S.G.A.Maehl, J.H.H.Nagda, S.M.Paling, R.W.Rarieya, J.M.Thorpe, W.R.Trail, J.C.M.Yangari, G.[Health and productivity of trypanotolerant and susceptible cattle exposed to trypanosomiasis in Gabon and the impact of strategic chemoprophylaxis]Health and productivity of trypanotolerant and susceptible cattle exposed to trypanosomiasis in Gabon and the impact of strategic chemoprophylaxis

Studies the effectiveness of the blood grouping technique for parentage identification of cattle at the Mvuazi research station, Bas-Zaire, Zaire.


Thorpe, W.R.D'Ieteren, G.D.M.Feron, A.Mundia, M.Ross, D.Sheria, M.Spooner, R.L.Trail, J.C.M.[Practical possibilities of blood grouping for parentage information: A pilot study in Zaire]Practical possibilities of blood grouping for parentage information: A pilot study in Zaire

The prevalence, species and intensity of trypanosome parasitaemia in different livestock species, breeds, age groups and management systems are reported from Togo for trypanosotolerant sheep and goats in the Sokode area. The effects of these trypanosome parasitaemias on health and production trai...


Defly, A.Awuome, K.Bokovi, K.D'Ieteren, G.D.M.Grundler, G.Handlos, MichaelItty, P.Leak, S.G.A.Maehl, J.H.H.Mawuena, K.Morkramer, G.Nagda, S.M.Paling, R.W.Rarieya, J.M.Thorpe, W.R.Trail, J.C.M.[Effect of trypanosome infection on livestock health and production in Togo]Effect of trypanosome infection on livestock health and production in Togo

Three dam breeds, the indigenous Ankole and zebu, and the Boran from Kenya were mated to Boran Angus and Red Poll sires to investigate the relationship between dam body weight and progeny performance. Under artificial insemination, at least 10% fewer cows were detected on heat than under natural ...


Trail, J.C.M.Sacker, G.D.Fisher, I.L.[Crossbreeding beef cattle in western Uganda. 1. Performance of Ankole, Boran and zebu cows]Crossbreeding beef cattle in western Uganda. 1. Performance of Ankole, Boran and zebu cows

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...


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

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