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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 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 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 2003

Autor: Kosgey, I.S. Arendonk, Johan A.M. van Baker, R.L.

Breeding objectives were developed for meat sheep in smallholder production circumstances in the tropics. The traits considered were litter size, lambing frequency, pre-weaning, and post-weaning lamb survival to 12 months, ewe survival, lamb live weight at 12-month, mature ewe live weight, consum...

Enlace original: https://cgspace.cgiar.org/handle/10568/33171

Investigación en Agricultura
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Kosgey, I.S. ,  Arendonk, Johan A.M. van ,  Baker, R.L. ,  [Economic values for traits of meat sheep in medium to high production potential areas of the tropics] ,  Economic values for traits of meat sheep in medium to high production potential areas of the tropics
Journal Article 2000

Autor: Kahi, A.K. Thorpe, W.R. Nitter, G. Baker, R.L.

Crossbreeding parameters for milk production and reproductive traits and for cow live weight (LW) of crosses of Ayrshire (A), Brown Swiss (B), Friesian (F) and Sahiwal (S) cattle were estimated using data from a dairy herd in the lowland coastal tropics of Kenya. An individual animal model was fi...

Enlace original: https://cgspace.cgiar.org/handle/10568/29192

Investigación en Agricultura
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Kahi, A.K. ,  Thorpe, W.R. ,  Nitter, G. ,  Baker, R.L. ,  [Crossbreeding for dairy production in the lowland tropics of Kenya. I. Estimation of individual crossbreeding effects on milk production and reproductive traits and on cow live weight] ,  Crossbreeding for dairy production in the lowland tropics of Kenya. I. Estimation of individual crossbreeding effects on milk production and reproductive traits and on cow live weight
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
Journal Article 1998

Autor: Baker, R.L.

The evidence for both between-and within-breed genetic variation for resistance to gastrointestinal (GI) nematode parasites is reviewed. It is concluded that much of the published research on breed characterisation for resistance suffers from poor experimental design. Prior to the initiation of a...

Enlace original: https://cgspace.cgiar.org/handle/10568/28636

Investigación en Agricultura
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Baker, R.L. ,  [Genetic resistance to endoparasites in sheep and goats. A review of genetic resistance to gastrointestinal nematode parasites in sheep and goats in the tropics and evidence for resistance in some sheep and goat breeds in sub-humid coastal Kenya] ,  Genetic resistance to endoparasites in sheep and goats. A review of genetic resistance to gastrointestinal nematode parasites in sheep and goats in the tropics and evidence for resistance in some sheep and goat breeds in sub-humid coastal Kenya
Conference Paper 2001

Autor: Kosgey, I.S. Arendonk, Johan A.M. van Baker, R.L.
Enlace original: https://cgspace.cgiar.org/handle/10568/50242

Investigación en Agricultura
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Kosgey, I.S. ,  Arendonk, Johan A.M. van ,  Baker, 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
Conference Paper 1994

Autor: Baker, R.L. Rege, J.E.O.

Sustainable livestock improvement cannot be guaranteed for most tropical areas of the world without utilization of the evolutionary adaptation of the indigenous livestock breeds. The paper summarizes the adaptive traits of indigenous tropical breeds, presents a case for their evaluation and discu...

Enlace original: https://cgspace.cgiar.org/handle/10568/50595

Investigación en Agricultura
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Baker, R.L. ,  Rege, J.E.O. ,  [Genetic resistance to diseases and other stresses in improvement of ruminant livestock in the tropics] ,  Genetic resistance to diseases and other stresses in improvement of ruminant livestock in the tropics

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