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The paper reviews the evidence of genetic resistance to endoparasites both within and between breeds of sheep and goats and assesses the possibilities of breeding for increased resistance. In light of this evidence, ILCA has developed a Pan-African research programme to investigate and characteri...


Baker, R.L.Lahlou-Kassi, A.Rege, J.E.O.Reynolds, L.Tekelye BekeleMukasa-Mugerwa, E.Rey, B.[A review of genetic resistance to endoparasites in small ruminants and an outline of ILCA's research programme in this area]A review of genetic resistance to endoparasites in small ruminants and an outline of ILCA's research programme in this area

Breeding programmes for Wakwa and Ngaundere Gudali cattle breeds were initiated in Wakwa (Cameroon) in 1952 and 1965, respectively, to improve growth performance of the indigenous breedsAnimals were selected on 240-day weaning weight (WWT). Data analysed covered the period 1971 through 1985 and c...


Tawah, C.L.Rege, J.E.O.Mbah, D.A.Oumate, H.[Genetic evaluation of birth and weaning weight of Gudali and two-breed synthetic Wakwa beef cattle populations under selection in Cameroon: Genetic and phenotypic trends]Genetic evaluation of birth and weaning weight of Gudali and two-breed synthetic Wakwa beef cattle populations under selection in Cameroon: Genetic and phenotypic trends

Genetic parameters for birth and 240-day weaning weights in Gudali and Wakwa cattle breeds in a tropical environment in Cameroon were estimated by derivative-free restricted maximum likelihood procedure using single-trait animal models with maternal effects. Performance data covered the period 19...


Tawah, C.L.Mbah, D.A.Rege, J.E.O.Oumate, H.[Genetic evaluation of birth and weaning weight of Gudali and two-breed synthetic Wakwa beef cattle populations under selection in Cameroon: Genetic and phenotypic parameters]Genetic evaluation of birth and weaning weight of Gudali and two-breed synthetic Wakwa beef cattle populations under selection in Cameroon: Genetic and phenotypic parameters

Between and within-breed variations in feed intake and digestive efficiency, in terms of the percentage of feed dry matter (DM) retained in the body out of that consumed (ADMD), in 452 Menz and Horro sheep were estimated. Average daily concentrate DM was about 278 g/day in both breeds, whereas da...


Ermias, E.Yami, A.Rege, J.E.O.[Genetic parameters of feed intake and digestive efficiency in tropical sheep]Genetic parameters of feed intake and digestive efficiency in tropical sheep

Genetic markers are being used by scientists worldwide in both animal and plant related breeding and Development efforts. The International Livestock Research Institute (ILRI) is a new institute formed in January 1995 by the amalgamation of the former ILCA (International Livestock Centre for Afri...


Tarawali, Shirley A.Rege, J.E.O.Hanotte, Olivier H.Hanson, Jean[DNA markers for forage and livestock improvement]DNA markers for forage and livestock improvement

Data for this study consisted of birth weight and 240-day weaning weight records of Ngaundere Gudali calves obtained from a selection experiment conducted at the Animal Production and Extension Farm on the Adamawa highlands of Cameroon and covered the period from 1971 through 1985. Direct heritab...


Tawah, C.L.Rege, J.E.O.Mbah, D.A.[Genetic analysis of preweaning growth in indigenous Gudali cattle under a long-term selection programme]Genetic analysis of preweaning growth in indigenous Gudali cattle under a long-term selection programme

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