The concept of a breed, in which all members have a pedigree tracing their ancestry, was developed primarily in Western Europe during the eighteenth century. Today, in the developed world, breeds are recognized as distinct intra-specific groups, the members of which share particular characteristi...
Rege, J.E.O.
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[Defining livestock breeds in the context of community-based management of farm animal genetic resources]
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Defining livestock breeds in the context of community-based management of farm animal genetic resources
Studies the influence of livestock species, breed, age and lactational status on the prevalence, species and intensity of trypanosome infection in livestock at eight sites of the African Trypanotolerant livestock network in west, Central, and East Africa. Estimates the effect of trypanosome infec...
D'Ieteren, G.D.M.
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Awuome, K.
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Bokovi, K.
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Chema, S.
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Coulibaly, L.
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Defly, A.
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Dumont, P.
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Feron, A.
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Grundler, G.
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Handlos, Michael
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Itty, P.
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Jeannin, P.
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Maehl, H.M.
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Maloo, S.H.
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Morkramer, G.
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Mulungo, M.
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Nagda, S.M.
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Ordner, G.
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Paling, R.W.
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Rarieya, J.M.
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Schuetterle, A.
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Sheria, M.
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Thorpe, W.R.
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Trail, J.C.M.
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Yangari, G.
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[Genetic and environmental factors affecting the epizootiology and pathogenesis of trypanosomiasis in livestock at eight sites within the African Trypanotolerant Livestock Network]
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Genetic and environmental factors affecting the epizootiology and pathogenesis of trypanosomiasis in livestock at eight sites within the African Trypanotolerant Livestock Network
There are four main breeds of sheep in Nigeria. The breeds are Balami, Uda, west African Dwarf sheep and Yankasa. Balami is most predominant in the North eastern part of Nigeria. The Balami is a predominantly white and hairy breed with a pronounced convex heat and a dull depression. It has a dewl...
The efficiency of cattle breeding and production depends to a large extent on the reproductive performance of the herd, with the bull playing a major role. Large differences in fertilizing ability between bulls exists, and such differences are due to the characteristics of individual bulls rather...
Tegegne, Azage
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Kassa, T.
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Mukasa-Mugerwa, E.
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[Aspects of bull reproduction with emphasis on cattle in Ethiopia. II. Sperm production capacity and semen characteristics]
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Aspects of bull reproduction with emphasis on cattle in Ethiopia. II. Sperm production capacity and semen characteristics
There is a large and diverse range of sheep and goat breeds in the world and some of these, particularly the indigenous tropical breeds, appear to have some unique genetic ability to resist or tolerate diseases. This paper reviews the information available on between-breed genetic variation for r...
Baker, R.L.
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[Characterisation and utilisation of sheep and goat breeds that are resistant to helminths]
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Characterisation and utilisation of sheep and goat breeds that are resistant to helminths
The challenges for research and Development of goats and the justification of increased productivity from them are discussed with reference to the presence of 94% of the total world population of about 674 million goats, numerous "improver breeds", interactions with the environment and socio-econ...
Estimates the prevalence, species and intensity of trypanosome infection found in cattle and sheep breeds and age groups, and the effect of these infections on health and production traits in northern Ivory Coast
Schuetterle, A.
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Coulibaly, L.
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Diarrassouba, I.
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D'Ieteren, G.D.M.
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Itty, P.
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Konin, N.
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Maehl, H.M.
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Mahamat, B.
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Nagda, S.M.
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Paling, R.W.
,
Rarieya, J.M.
,
Thorpe, W.R.
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Trail, J.C.M.
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[Effect of trypanosome infection on livestock health and production traits in northern Ivory Coast]
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Effect of trypanosome infection on livestock health and production traits in northern Ivory Coast
There is a broad land of territory comprising the subhumid zone and the non-forested areas of the humid zone of West Africa in which a mixture of trypanotolerant, trypano-susceptible, and crossbred cattle are found. Availability of a variety of breeds allows farmers to choose the breeds they judg...
Kamuanga, M.
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Tano, K.
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Pokou, K.
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Jabbar, M.A.
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D'Ieteren, G.D.M.
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[Farmers' preferences of cattle breeds, their market values and prospects for improvement in West Africa: A summary review]
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Farmers' preferences of cattle breeds, their market values and prospects for improvement in West Africa: A summary review
The reviewed case studies were conducted between 1994 and 1997 by ILRI research teams in Burkina Faso, Cote d'Ivoire and Nigeria. The objectives were to evaluate farmers' preferences for cattle traits; to assess constraints and opportunities for in situ conservation of endangered cattle breeds, ...
Kamuanga, M.
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Tano, K.
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Pokou, K.
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Jabbar, M.A.
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D'Ieteren, G.D.M.
,
[Farmer preferences of cattle breeds, their market values and prospects for improvement in West Africa: A summary review]
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Farmer preferences of cattle breeds, their market values and prospects for improvement in West Africa: A summary review
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...