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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 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
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 2005

Autor: Mugambi, J.M.M. Audho, James O. Baker, R.L.

Six first cross (F1) Red Maasai X Dorper rams were mated to both Red Maasai (R) and Dorper (D) ewes to produce 1342 double backcross progeny (672 3/4 D/1/4 R and 670 3/4 R/1/4 D lambs born alive). These six double backcross resource families are being used to identify quantitative trait loci con...

Enlace original: https://cgspace.cgiar.org/handle/10568/33176

Investigación en Agricultura
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Mugambi, J.M.M. ,  Audho, James O. ,  Baker, R.L. ,  [Evaluation of the phenotypic performance of a Red Maasai and Dorper double backcross resource population: Natural pasture challenge with gastro-intestinal nematode parasites] ,  Evaluation of the phenotypic performance of a Red Maasai and Dorper double backcross resource population: Natural pasture challenge with gastro-intestinal nematode parasites
Journal Article 2005

Autor: Mugambi, J.M.M. Audho, James O. Njomo, S. Baker, R.L.

Six F1 Dorper (D) x Red Maasai (R) rams were mated to both D and R ewes to produce backcross lambs. These six double backcross resource families are being analysed to identify quantitative trait loci that may be controlling resistance to gastro-intestinal (GI) nematode parasites, mainly Haemonchu...

Enlace original: https://cgspace.cgiar.org/handle/10568/33236

Investigación en Agricultura
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Mugambi, J.M.M. ,  Audho, James O. ,  Njomo, S. ,  Baker, R.L. ,  [Evaluation of the phenotypic performance of a Red Maasai and Dorper double backcross resource population: Indoor trickle challenge with Haemonchus contortus] ,  Evaluation of the phenotypic performance of a Red Maasai and Dorper double backcross resource population: Indoor trickle challenge with Haemonchus contortus
Journal Article 1999

Autor: Baker, R.L. Mwamachi, D.M. Audho, James O. Aduda, Eric O. Thorpe, W.R.

Resistance to naturally acquired gastro-intestinal (GI) nematode parasite infections (predominantly Haemonchus contortus) was studied in 166 Red Maasai; 230 Dorper and 294 crossbred (Red Maasai X Dorper) ewes in the sub-humid coastal region of Kenya. Live weights (LWT), blood packed-cell volume (...

Enlace original: https://cgspace.cgiar.org/handle/10568/28325

Investigación en Agricultura
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Baker, R.L. ,  Mwamachi, D.M. ,  Audho, James O. ,  Aduda, Eric O. ,  Thorpe, W.R. ,  [Genetic resistance to gastro-intestinal nematode parasites in red Maasai, Dorper and Red Maasai X Dorper ewes in the sub-humid tropics] ,  Genetic resistance to gastro-intestinal nematode parasites in red Maasai, Dorper and Red Maasai X Dorper ewes in the sub-humid tropics
Book Chapter 2004

Autor: Baker, R.L. Gray, G.D.

The purpose of this chapter is two-fold. First, the information available on breeds of sheep and goats that are resistant or resilient to helminthiasis (mainly the GI nematodes) infections are reviewed. This is important information for inclusion of appropriate breeds in integrated endoparasite c...

Enlace original: https://cgspace.cgiar.org/handle/10568/2920

Investigación en Agricultura
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Baker, R.L. ,  Gray, G.D. ,  [Appropriate breeds and breeding schemes for sheep and goats in the tropics] ,  Appropriate breeds and breeding schemes for sheep and goats in the tropics
Conference Paper 1992

Autor: Reynolds, L. Baker, R.L. Sherington, J. Njubi, D.

Studies the within-and between-breed differences in resistance to natural infection with gastro-intestinal parasites and identifies genetic markers to aid in the selection of animals. Data analysed include PCV (Packed Cell Volume), live weight from birth to 360 days and faecal egg counts.

Enlace original: https://cgspace.cgiar.org/handle/10568/70837

Investigación en Agricultura
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Reynolds, L. ,  Baker, R.L. ,  Sherington, J. ,  Njubi, D. ,  [Resistance to gastro-intestinal parasites in Dorper and Red Maasai-Dorper crossbred sheep] ,  Resistance to gastro-intestinal parasites in Dorper and Red Maasai-Dorper crossbred sheep
Journal Article 2003

Autor: Baker, R.L. Nagda, S.M. Rodríguez Zas, S.L. Southey, B.R. Audho, James O. Aduda, Eric O. Thorpe, W.R.

Resistance and resilience to naturally acquired gastro-intestinal (GI) nematode parasite infections (predominantly Haemonchus contortus) were studied in 1785 lambs born over six lambings (1991 to 1996) consisting of 212 Red Maasai, 311 Dorper and 1262 crossbred (Red Maasai-Dorper) lambs in the su...

Enlace original: https://cgspace.cgiar.org/handle/10568/28329

Investigación en Agricultura
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Baker, R.L. ,  Nagda, S.M. ,  Rodríguez Zas, S.L. ,  Southey, B.R. ,  Audho, James O. ,  Aduda, Eric O. ,  Thorpe, W.R. ,  [Resistance and resilience to gastro-intestinal nematode parasites and relationships with productivity of Red Maasai, Dorper and Red Maasai X Dorper crossbred lambs in the sub-humid tropics] ,  Resistance and resilience to gastro-intestinal nematode parasites and relationships with productivity of Red Maasai, Dorper and Red Maasai X Dorper crossbred lambs in the sub-humid tropics

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