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Journal Article 2015-04-15

Autor: Benavides, M.V. Sonstegard, T.S. Kemp, Stephen J. Mugambi, J.M.M. Gibson, John P. Baker, R.L. Hanotte, Olivier H. Marshall, Karen Tassell, C. van

Gastrointestinal (GI) parasitic infection is the main health constraint for small ruminant production, causing loss of weight and/or death. Red Maasai sheep have adapted to a tropical environment where extreme parasite exposure is a constant, especially with highly pathogenic Haemonchus contortus...

Enlace original: https://cgspace.cgiar.org/handle/10568/72426

Investigación en Agricultura
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Benavides, M.V. ,  Sonstegard, T.S. ,  Kemp, Stephen J. ,  Mugambi, J.M.M. ,  Gibson, John P. ,  Baker, R.L. ,  Hanotte, Olivier H. ,  Marshall, Karen ,  Tassell, C. van ,  [Identification of novel loci associated with gastrointestinal parasite resistance in a red Maasai x Dorper backcross population] ,  Identification of novel loci associated with gastrointestinal parasite resistance in a red Maasai x Dorper backcross population
Journal Article 1999

Autor: Clement, V. Bouix, J. Tillard, E. Gueye, A. Baker, R.L.

Un protocole d'etude de la resistance genetique aux strongyloses gastro-intestinales a ete mis en place sur des races locales d'ovins et de caprins du Senegal. Des prelevements de sang et des coproscopies ont ete realises pendant deux ans sur des animaux de differents troupeaux de la zone de Loug...

Enlace original: https://cgspace.cgiar.org/handle/10568/29590

Investigación en Agricultura
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Clement, V. ,  Bouix, J. ,  Tillard, E. ,  Gueye, A. ,  Baker, R.L. ,  [Estimation des parametres genetiques de la resistance au parasitisme gastro-intestinal en elevage villageois de petits ruminants au Senegal] ,  Estimation des parametres genetiques de la resistance au parasitisme gastro-intestinal en elevage villageois de petits ruminants au Senegal
Journal Article 1996

Autor: Mackinnon, M.J. Thorpe, W.R. Baker, R.L.

Crossbreeding parameters and variance components were estimated for lactation and reproductive traits of crosses between the Sahiwal, Brown Swiss and Ayrshire breeds in a dairy herd in sub-humid coastal Kenya. An individual animal model was fitted to the data with a fixed effect for 20 distinct b...

Enlace original: https://cgspace.cgiar.org/handle/10568/28313

Investigación en Agricultura
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Mackinnon, M.J. ,  Thorpe, W.R. ,  Baker, R.L. ,  [Sources of genetic variation for milk production in a crossbred herd in the tropics] ,  Sources of genetic variation for milk production in a crossbred herd in the tropics
Journal Article 1996

Autor: Woolaston, R.R. Baker, R.L.

Resistance to nematode parasites can be improved by selection, but efforts to include appropriate traits in commercial livestock breeding programs are only a recent development. Procedures for including resistance in breeding programs are similar to those involving other traits. The steps are des...

Enlace original: https://cgspace.cgiar.org/handle/10568/28794

Investigación en Agricultura
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Woolaston, R.R. ,  Baker, R.L. ,  [Prospects of breeding small ruminants for resistance to internal parasites] ,  Prospects of breeding small ruminants for resistance to internal parasites
Journal Article 1999

Autor: Ogore, P.B. Baker, R.L. Kenyanjui, M. Thorpe, W.R.

Assessment of adult female tick burden was performed on 160,151 and 150 yearling sheep in coastal Kenya at the end of three consecutive infestation periods, respectively. The main attachment sites of fully engorged female ticks were ears, head, body sides, perianal and scrotal/udder regions. Aver...

Enlace original: https://cgspace.cgiar.org/handle/10568/29621

Investigación en Agricultura
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Ogore, P.B. ,  Baker, R.L. ,  Kenyanjui, M. ,  Thorpe, W.R. ,  [Assessment of natural ixodid tick infestations in sheep] ,  Assessment of natural ixodid tick infestations in sheep
Journal Article 2004

Autor: Baker, R.L. Mugambi, J.M.M. Audho, James O. Carles, A.B. Thorpe, W.R.

Red Maasai and Dorper sheep were evaluated for their resistance to gastro-intestinal (GI) nematode parasites (predominantly Haemonchus contortus), productivity and productive efficiency (assessed on a metabolizable energy basis) in experiments undertaken at the Kenyan coast (sub-humid environment...

Enlace original: https://cgspace.cgiar.org/handle/10568/28306

Investigación en Agricultura
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Baker, R.L. ,  Mugambi, J.M.M. ,  Audho, James O. ,  Carles, A.B. ,  Thorpe, W.R. ,  [Genotype by environment interactions for productivity and resistance to gastro-intestinal nematode parasites in Red Maasai and Dorper sheep] ,  Genotype by environment interactions for productivity and resistance to gastro-intestinal nematode parasites in Red Maasai and Dorper sheep
Journal Article 2003

Autor: Nguti, R. Janssen, P. Rowlands, G.J. Audho, James O. Baker, R.L.

The survival rates of Dorper, Red Maasai and crossbred lambs born over a period of 6 years at Diani Estate, Coast Province, Kenya were compared using the Cox mixed proportional hazards model with a random (frailty) term for sire. Of the 1785 lambs born, proportionately 0.44 died before they were ...

Enlace original: https://cgspace.cgiar.org/handle/10568/28328

Investigación en Agricultura
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Nguti, R. ,  Janssen, P. ,  Rowlands, G.J. ,  Audho, James O. ,  Baker, R.L. ,  [Survival of Red Maasai, Dorper and crossbred lambs in the sub-humid tropics] ,  Survival of Red Maasai, Dorper and crossbred lambs in the sub-humid tropics
Conference Paper 1992

Autor: Baker, R.L. Lahlou-Kassi, A. Rege, J.E.O. Reynolds, L. Tekelye Bekele Mukasa-Mugerwa, E. Rey, B.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/50106

Investigación en Agricultura
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Baker, R.L. ,  Lahlou-Kassi, A. ,  Rege, J.E.O. ,  Reynolds, L. ,  Tekelye Bekele ,  Mukasa-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
Journal Article 1995

Autor: Kahi, A.K. Mackinnon, M.J. Thorpe, W.R. Baker, R.L. Njubi, D.

A total of 1443 records were used to estimate individual and maternal additive genetic breed and heterotic effects for preweaning growth and survival traits of crosses of Ayrshire (A), Brown Swiss (B), and Sahiwal (S) in a dairy herd in the lowland coastal tropics of Kenya. Individual and matern...

Enlace original: https://cgspace.cgiar.org/handle/10568/29183

Investigación en Agricultura
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Kahi, A.K. ,  Mackinnon, M.J. ,  Thorpe, W.R. ,  Baker, R.L. ,  Njubi, D. ,  [Estimation of individual and maternal additive genetic and heterotic effects for preweaning traits of crosses of Ayrshire, Brown Swiss and Sahiwal cattle in the lowland tropics of Kenya] ,  Estimation of individual and maternal additive genetic and heterotic effects for preweaning traits of crosses of Ayrshire, Brown Swiss and Sahiwal cattle in the lowland tropics of Kenya
Journal Article 2007-08-15

Autor: Haile, Aynalem Tibbo, Markos Baker, R.L. Rege, J.E.O.

The effects of non-genetic factors on responses to gastrointestinal nematode infections were examined in artificially infected indigenous Horro and Menz lambs in the central highlands of Ethiopia. The experiment involved lambs of two sexes, infection and monitoring regimens (3 levels), dam parity...

Enlace original: https://cgspace.cgiar.org/handle/10568/1262

Investigación en Agricultura
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Haile, Aynalem ,  Tibbo, Markos ,  Baker, R.L. ,  Rege, J.E.O. ,  [Effects of non-genetic factors on responses to gastro-intestinal nematode infections in Ethiopian sheep] ,  Effects of non-genetic factors on responses to gastro-intestinal nematode infections in Ethiopian sheep

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