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Estimates genetic parameters and trends in reproductive and productive traits of Sahiwal cattle - milk yield, birth weight of calves, service period, number of services per conception and calving interval, from records covering the period 1964 through 1988 obtained from the Kenya Sahiwal Stud, Na...


Rege, J.E.O.Wakhungu, Judi W.Lamole, M.A.[Genetic parameters and trends in production and reproduction traits at the Kenya Sahiwal Stud]Genetic parameters and trends in production and reproduction traits at the Kenya Sahiwal Stud

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

A sheep selection programme (PNSO - Programme National de Selection Ovine) was initiated in 1983, in Cote d'Ivoire, with the ojbective of genetically improving growth and adult live weight of the indigenous Djallonke sheep through the selection of rams on body weight basis and distributing the su...


Yapi-Gnoare, C.V.Rege, J.E.O.Oya, A.Lebbie, S.H.B.[Improvement of indigenous Djallonke sheep among smallholder farmers in Cote d'Ivoire using an open nucleus breeding scheme]Improvement of indigenous Djallonke sheep among smallholder farmers in Cote d'Ivoire using an open nucleus breeding scheme
Kierstein, G.Hirbo, J.Wafula, P.Rege, J.E.O.Hanotte, Olivier H.[Diversity of African domestic sheep (Ovis aries) revealed by mitochondrial D-loop sequence differences. Abstract]Diversity of African domestic sheep (Ovis aries) revealed by mitochondrial D-loop sequence differences. Abstract

The economic and biological efficiency of cotton seed cake (CSC) and molasses urea block (MUB) supplementation to control gastrointestinal nematode parasites was examined in artificially infected Horro and Menz lambs from 3 to 12 months of age. The factorial O.xperimental design involved 2 breeds...


Haile, AynalemBaker, R.L.Rege, J.E.O.[Economics of gastrointestinal nematode parasite control: The case of protein supplementation]Economics of gastrointestinal nematode parasite control: The case of protein supplementation

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
Autor: Rege, J.E.O.

This paper describes the major activities in sub Saharan Africa in the area of characterization and conservation of Animal genetic resources. Rege (1994) summarised the major animal genetic resources activities, primarily breed characterization and genetic improvement programmes, which are being ...


Rege, J.E.O.[Characterization and conservation of farm animal genetic resources: Current status in sub-Saharan Africa]Characterization and conservation of farm animal genetic resources: Current status in sub-Saharan Africa

The relative performance of Mashona, Nkone, Tuli (indigenous breeds), Afrikaner, all these being Sanga type, Charolais, Sussex (Bos Taurus), Brahman (Zebu) and several resultant crosses reared on range in a semi arid environment was assessed. The results showed that indigenous cattle are consider...


Moyo, SibonisoRege, J.E.O.Swanepoel, F.J.C.[Evaluation of indigenous, exotic and crossbred cattle for beef production in a semi arid environment]Evaluation of indigenous, exotic and crossbred cattle for beef production in a semi arid environment

A total of 26,233 calving records from three commercial ranches: Mogwooni, Galana and O'ljorai; located in high altitude, humid and low altitude, coastal, and medium altitude rangelands of Kenya, were available for the study over periods between 10 and 30 years. The traits studied were: age at fi...


Okeyo Mwai, AllyMosi, R.O.Rege, J.E.O.[Genetic and phenotypic parameters and trends of reproduction traits in Kenya Boran cows]Genetic and phenotypic parameters and trends of reproduction traits in Kenya Boran cows

Genetic resistance to artificially acquired gastrointestinal parasites was studied in 49 Horro and 103 Menz breeds of Ethiopia. The experimental design involved 2 breeds, 2 infection treatments (Infected vs Non infected) and 3 dietary protein treatments using 152 lambs assigned to the 12 treatmen...


Haile, AynalemTembely, S.Anindo, D.O.Rege, J.E.O.Mukasa-Mugerwa, E.Yami, A.Baker, R.L.[Genetic resistance to gastrointestinal parasites in artificially infected Horro and Menz Ethiopian sheep breeds]Genetic resistance to gastrointestinal parasites in artificially infected Horro and Menz Ethiopian sheep breeds

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