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Kosgey, I.S.Werf, J.H.J. van derKinghorn, B.P.Arendonk, Johan A.M. vanBaker, R.L.[Theoretical assessment of alternative pure-breeding schemes for sheep meat in the tropics]Theoretical assessment of alternative pure-breeding schemes for sheep meat in the tropics
Kosgey, I.S.Arendonk, Johan A.M. vanBaker, R.L.[Breeding objectives for meat sheep in smallholder production systems in the tropics]Breeding objectives for meat sheep in smallholder production systems in the tropics

This Report compares the efficacies of three anthelmintics, each belonging to one of the broad spectrum groups. It also identifies the genera of resistant worms through larval culture. The study was conducted on a commercial farm where anthelmintics had been used intensively. The results show cle...


Mwamachi, D.M.Audho, James O.Magadi, M.Reynolds, L.Baker, R.L.[Evidence for multiple anthelmintic resistance of gastrointestinal nematodes in sheep in coastal Kenya]Evidence for multiple anthelmintic resistance of gastrointestinal nematodes in sheep in coastal Kenya
Baker, R.L.Audho, James O.Aduda, Eric O.Thorpe, W.R.[Genetic resistance to gastrointestinal nematode parasites in some indigenous breeds of sheep and goats in Kenya]Genetic resistance to gastrointestinal nematode parasites in some indigenous breeds of sheep and goats in Kenya

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
Autor: Baker, R.L.

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.[Characterisation and utilisation of sheep and goat breeds that are resistant to helminths]Characterisation and utilisation of sheep and goat breeds that are resistant to helminths

Red Maasai [Masai] and Dorper sheep were evaluated for their resistance to gastrointestinal nematode parasites (predominantly Haemonchus contortus), productivity and efficiency in experiments undertaken at the Kenyan coast (humid environment) and the Kenya highlands (semiarid environment). It was...


Baker, R.L.Mugambi, J.M.M.Audho, James O.Carles, A.B.Thorpe, W.R.[Comparison of Red Maasai and Dorper sheep for resistance to gastro-intestinal nematode parasites: Productivity and efficiency in a humid and a semi-arid environment in Kenya]Comparison of Red Maasai and Dorper sheep for resistance to gastro-intestinal nematode parasites: Productivity and efficiency in a humid and a semi-arid environment in Kenya

This study is evaluating the resistance of Red Maasai sheep to endoparasite infections relative to Dorper sheep and a range of Red Maasai x Dorper crosses. The results confirm previous Reports that both Red Maasai ewes and lambs are more resistant to endoparasites (predominantly Haemonchus contor...


Baker, R.L.Mwamachi, D.M.Audho, James O.Thorpe, W.R.[Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya]Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya

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
Autor: Baker, R.L.

The paper reviews the limited data available on both between-and within-breed genetic variation for resistance to helminthiasis in cattle, sheep and goats in the tropics. Topics covered include criteria of resistance, resilience or tolerance, parasite species and mode of infection, parameters to ...


Baker, R.L.[Genetic resistance against helminth infections in cattle, sheep and goats in the tropics]Genetic resistance against helminth infections in cattle, sheep and goats in the tropics

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