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Individual and maternal additive genetic and heterotic effects were estimated for preweaning, reproductive, and lactation traits of the Sahiwal breed and its crosses with Bos taurus (Ayrshire and Friesian). The individual additive genetic breed effect influenced all cow traits except annual milk ...


Thorpe, W.R.Kang'ethe, P.Rege, J.E.O.Mosi, R.O.Mwandotto, B.A.J.Njuguna, P.[Crossbreeding Ayrshire, Friesian, and Sahiwal cattle for milk yield and preweaning traits of progeny in the semiarid tropics of Kenya]Crossbreeding Ayrshire, Friesian, and Sahiwal cattle for milk yield and preweaning traits of progeny in the semiarid tropics of Kenya

Genetic diversity of sub-Saharan African goats was assessed using 19 microsatellite markers. Breeds were sampled from eastern Africa (Maasai, Kigezi, Mubende, North West Highland, Arsi Bale), southern Africa (Ndebele, Pafuri) and West Africa (West African Dwarf, Maure, Djallonke). European breeds...


Chenyambuga, S.W.Hanotte, Olivier H.Hirbo, J.Watts, P.C.Kemp, Stephen J.Kifaro, G.C.Gwakisa, P.S.Petersen, P.H.Rege, J.E.O.[Genetic characterization of indigenous goats of sub-Saharan Africa using microsatellite DNA markers]Genetic characterization of indigenous goats of sub-Saharan Africa using microsatellite DNA markers

DNA samples from 30 Friesian, 18 N'Dama, 30 Sahiwal and 18 Barotse (derived from Bos taurus and B. indicus) cattle were amplified by the polymerase chain reaction using previously described primer sequences for amplification of the Y chromosome locus INRA124. A polymorphism with 2 alleles was det...


Hanotte, Olivier H.Okomo, M.Verjee, Y.Rege, J.E.O.Teale, A.J.[A polymorphic Y chromosome microsatellite locus in cattle]A polymorphic Y chromosome microsatellite locus in cattle

Evaluates the reproductive and lactational performances, length of productive life of the Jersey breed from records for 1960 to 1988 in coastal lowland semi-humid Kenya. Reports estimates of reproductive and lactational performance, the effects of non-genetic factors on performance and estimates ...


Njubi, D.M.Rege, J.E.O.Thorpe, W.R.Collins-Lusweti, E.Nyambaka, R.[Genetic and environmental variation in reproductive and lactational performance of Jersey cattle in the coastal lowland semi-humid tropics]Genetic and environmental variation in reproductive and lactational performance of Jersey cattle in the coastal lowland semi-humid tropics

Monthly collection of ticks in the period January through October, 2002 was conducted in the Ghibe Valley of Ethiopia from randomly selected cohort of 60 heifers belonging to four indigenous cattle breeds namely Abigar, Sheko, Horro and Guraghe. The most abundant tick species were Amblyomma varie...


Feleke, A.Petros, B.Lemecha, H.Wossene, A.Mulatu, W.Rege, J.E.O.[Study on monthly dynamics of ticks and seroprevalence of Anaplasma marginale, Babesia bigemina and Theileria mutans in four indigenous breeds of cattle in Ghibe valley, Ethiopia]Study on monthly dynamics of ticks and seroprevalence of Anaplasma marginale, Babesia bigemina and Theileria mutans in four indigenous breeds of cattle in Ghibe valley, Ethiopia

The genetic diversity and relationships amongst the dromedary (Camelus dromedarius) populations are poorly documented. Four recognized Kenyan dromedary breeds (Somali, Turkana, Rendille, Gabbra) and dromedary from Pakistan and the Arabian Peninsula (Saudi Arabia, United Arab Emirates) were studi...


Mburu, D.N.Ochieng, J.W.Kuria, S.G.Han JianlinKaufmann, B.Rege, J.E.O.Hanotte, Olivier H.[Genetic diversity and relationships of indigenous Kenyan camel (Camelus dromedarius) populations: Implications for their classification]Genetic diversity and relationships of indigenous Kenyan camel (Camelus dromedarius) populations: Implications for their classification

Assessment of genetic diversity is a prerequisite for the management and conservation of animal genetic resources. Appropriate design of breeding programmes is therefore impossible for breeds that have not been adequately characterized either phenotypically and/or genetically. Phenotypic characte...


Mwacharo, Joram M.Okeyo Mwai, AllyKamande, G.K.Rege, J.E.O.[The small East African shorthorn zebu cows in Kenya. I: linear body measurements]The small East African shorthorn zebu cows in Kenya. I: linear body measurements

The objective of this study was to examine the effect of different concentrations of trehalose and raffinose in Tris-citric acid-glucose (TCG) egg yolk extender for the sperm freezability of Red Maasai sheep, another African breed- the Dorper and their crosses. The results showed that Red Maasai,...


Yamashiro, H.Wando, J.R.Okoth, S.Sugimura, S.Moisyadi, S.Sato, E.Rege, J.E.O.Okeyo Mwai, Ally[A case study on cryopreservation of African sheep semen for the Red Maasai, Dorper breeds and their crosses]A case study on cryopreservation of African sheep semen for the Red Maasai, Dorper breeds and their crosses

Aboagye, G.S.Tawah, C.L.Rege, J.E.O.[Shorthorn cattle of West and Central Africa III. Physical, adaptive and special genetic characteristics]Shorthorn cattle of West and Central Africa III. Physical, adaptive and special genetic characteristics

Rege, J.E.O.Aboagye, G.S.Tawah, C.L.[Shorthorn cattle of west and central Africa II. Ecological settings, utility, management and production systems]Shorthorn cattle of west and central Africa II. Ecological settings, utility, management and production systems

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