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Journal Article 2001

Autor: Abegaz, S. Negussie, E. Duguma, G. Rege, J.E.O.

Variance components and genetic parameters were estimated for growth traits: birth weight (BWT), weaning weight (WWT), six-month weight (6MWT) and yearling weight (YWT) in indigenous Ethiopian Horro lambs using the Average Information REML (AIREML). Four different models: Sire model (Model 1),...

Enlace original: https://cgspace.cgiar.org/handle/10568/66834

Investigación en Agricultura
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Abegaz, S. ,  Negussie, E. ,  Duguma, G. ,  Rege, J.E.O. ,  [Variance components and estimates of genetic parameters for early growth traits in Horro sheep] ,  Variance components and estimates of genetic parameters for early growth traits in Horro sheep
Journal Article 2007-12-15

Autor: Thornton, Philip K. Herrero, Mario T. Freeman, H.A. Okeyo Mwai, Ally Rege, J.E.O. Jones, Peter G. McDermott, John J.

Livestock systems in developing countries are characterised by rapid change, driven by factors such as population growth, increases in the demand for livestock products as incomes rise, and urbanisation. Climate change is adding to the considerable development challenges posed by these drivers of...

Enlace original: https://cgspace.cgiar.org/handle/10568/2205

Investigación en Agricultura
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Thornton, Philip K. ,  Herrero, Mario T. ,  Freeman, H.A. ,  Okeyo Mwai, Ally ,  Rege, J.E.O. ,  Jones, Peter G. ,  McDermott, John J. ,  [Vulnerability, climate change and livestock - opportunities and challenges for the poor] ,  Vulnerability, climate change and livestock - opportunities and challenges for the poor
Journal Article 1997

Autor: Yapi-Gnoare, C.V. Oya, A. Rege, J.E.O. Dagnogo, B.

Data on Dajllonke sheep collected from 1983 through 1992 on 29 participating farms of an open nucleus improvement programme and from the nucleus were analysed. Initial on-farm records on 14342 lambs and on-station records on 2551 ram lambs were edited down to 6605 for birth weight (BWT), 5857 for...

Enlace original: https://cgspace.cgiar.org/handle/10568/28319

Investigación en Agricultura
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Yapi-Gnoare, C.V. ,  Oya, A. ,  Rege, J.E.O. ,  Dagnogo, B. ,  [Analysis of an open nucleus breeding programme for Djallonke sheep in the Ivory Coast. 1. Examination of non-genetic factors] ,  Analysis of an open nucleus breeding programme for Djallonke sheep in the Ivory Coast. 1. Examination of non-genetic factors
Journal Article 1992

Autor: Inyangala, B.A.O. Rege, J.E.O. Itulya, S.

Data on 1199 lambs collected over a 10 year period (1978 to 1987) on Dorper and Dorper X Red Maasai sheep at Ol'Magogo were used in this study. Lamb traits studied were weights from birth to yearling and absolute growth rates between adjacent stages of growth. In general, crossbred lambs performe...

Enlace original: https://cgspace.cgiar.org/handle/10568/28451

Investigación en Agricultura
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Inyangala, B.A.O. ,  Rege, J.E.O. ,  Itulya, S. ,  [The performance of the Dorper and Dorper X Red Maasai sheep] ,  The performance of the Dorper and Dorper X Red Maasai sheep
Journal Article 1999

Autor: Rege, J.E.O.

The article discusses the collaboration of ILRI's programme on animal genetic resources with ICARDA. It highlights the potential areas of research methods as: i. Potential areas of collaboration with ICARDA; ii. Methodologies; iii. Outputs; iRelated activities.

Enlace original: https://cgspace.cgiar.org/handle/10568/28457

Investigación en Agricultura
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Rege, J.E.O. ,  [ILRI's programme on animal genetic resources and potential areas of collaboration with ICARDA] ,  ILRI's programme on animal genetic resources and potential areas of collaboration with ICARDA
Journal Article 2003

Autor: Reist-Marti, S.B. Simianer, H. Gibson, John P. Hanotte, Olivier H. Rege, J.E.O.

To evaluate the Weitzman approach for assessing alternative conservation strategies for breed ( population ) diversity, we used genetic distance measures between 49 African cattle breeds divided into two groups of 26 taurine ( Bos taurus ) and sanga ( Bos taurus×Bos indicus ) breeds and 23 zebu ...

Enlace original: https://cgspace.cgiar.org/handle/10568/32877

Investigación en Agricultura
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Reist-Marti, S.B. ,  Simianer, H. ,  Gibson, John P. ,  Hanotte, Olivier H. ,  Rege, J.E.O. ,  [Weitzman's approach and conservation of breed diversity: An application to African cattle breeds] ,  Weitzman's approach and conservation of breed diversity: An application to African cattle breeds
Journal Article 1992

Autor: Rege, J.E.O. Lomole, M.A. Wakhungu, Judi W.

Investigates the effects of non genetic factors on performance, and estimates genetic parameters of reproductive and productive traits with a view to examining the appropriateness of the assumed parameters. Presents an evaluation of a long-term breeding programme in a closed Sahiwal herd in Keny...

Enlace original: https://cgspace.cgiar.org/handle/10568/28845

Investigación en Agricultura
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Rege, J.E.O. ,  Lomole, M.A. ,  Wakhungu, Judi W. ,  [An evaluation of a long-term breeding programme in a closed Sahiwal herd in Kenya. I. Effects of non-genetic factors on performance and genetic parameter estimates] ,  An evaluation of a long-term breeding programme in a closed Sahiwal herd in Kenya. I. Effects of non-genetic factors on performance and genetic parameter estimates
Journal Article 1993

Autor: Rege, J.E.O. Moyo, Siboniso

This study was undertaken to investigate the relationship between date of birth and growth performance of calves born to seasonally-bred range cows. Late born calves exhibited an apparent superiority in preweaning growth over that of their early-born counterparts. This was attributed to a positiv...

Enlace original: https://cgspace.cgiar.org/handle/10568/28847

Investigación en Agricultura
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Rege, J.E.O. ,  Moyo, Siboniso ,  [Effect of birth date on growth performance of calves of seasonally-bred range cattle] ,  Effect of birth date on growth performance of calves of seasonally-bred range cattle
Journal Article 2005

Autor: Xuebin, Q. Han Jianlin Lkhagva, B. Chekarova, I. Badamdorj, D. Rege, J.E.O. Hanotte, Olivier H.

In this study we examined the genetic diversity of yak populations in the northernmost part of their current global distribution. Five Mongolian and one Russian yak populations as well as one Chinese yak population from the Qinghai-Tibetan Plateau, the putative centre of yak domestication, were a...

Enlace original: https://cgspace.cgiar.org/handle/10568/28848

Investigación en Agricultura
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Xuebin, Q. ,  Han Jianlin ,  Lkhagva, B. ,  Chekarova, I. ,  Badamdorj, D. ,  Rege, J.E.O. ,  Hanotte, Olivier H. ,  [Genetic diversity and differentiation of Mongolian and Russian yak populations] ,  Genetic diversity and differentiation of Mongolian and Russian yak populations
Journal Article 1991

Autor: Rege, J.E.O.

An original data set of 31, 661 lactation records of Kenyan Friesian cows covering the period 1968 through 1987 was used to develop part-lactation extension factors for milk yield, and to estimate genetic parameters for production and reproductive traits. Effects of herds and year were significan...

Enlace original: https://cgspace.cgiar.org/handle/10568/28853

Investigación en Agricultura
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Rege, J.E.O. ,  [Genetic analysis of reproductive and productive performance of Friesian cattle in Kenya. I. Genetic and phenotypic parameters] ,  Genetic analysis of reproductive and productive performance of Friesian cattle in Kenya. I. Genetic and phenotypic parameters

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