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Journal Article 1994

Autor: Rege, J.E.O. Aboagye, G.S. Akah, S. Ahunu, B.K.

Crossbreeding data involving Ghana Shorthorn, Sokoto Gudali and their Jersey F1S and backcrosses collected over a 16-year period were analysed to estimate additive and heterotic effects for milk production, reproduction and calf growth traits. Sokoto Gudali was significantly better than Ghana Sho...

Enlace original: https://cgspace.cgiar.org/handle/10568/28271

Investigación en Agricultura
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Rege, J.E.O. ,  Aboagye, G.S. ,  Akah, S. ,  Ahunu, B.K. ,  [Crossbreeding Jersey with Ghana Shorthorn and Sokoto Gudali cattle in a tropical environment: Additive and heterotic effects for milk production, reproduction and calf growth traits] ,  Crossbreeding Jersey with Ghana Shorthorn and Sokoto Gudali cattle in a tropical environment: Additive and heterotic effects for milk production, reproduction and calf growth traits
Journal Article 1993

Autor: Rege, J.E.O. Aboagye, G.S. Akah, S.

A method for obtaining between-breed differences in crossbreeding parameters is presented as an alternative to the conventional practice of estimating actual parameters in crossbreeding systems where a single exotic breed imported through sires or semen only is used on two or more indigenous bree...

Enlace original: https://cgspace.cgiar.org/handle/10568/29181

Investigación en Agricultura
Enlace permanente
Rege, J.E.O. ,  Aboagye, G.S. ,  Akah, S. ,  [A method for estimating between-breed differences in crossbreeding parameters and their sampling variances] ,  A method for estimating between-breed differences in crossbreeding parameters and their sampling variances
Journal Article 1993

Autor: Thorpe, W.R. Kang'ethe, P. Rege, J.E.O. Mosi, R.O. Mwandotto, B.A.J. Njuguna, P.

Individual and maternal additive genetic and heterotic effects were estimated for preweaning, reproductive, and lactation traits of the Sahiwal breed and its crosses with Bos taurus (Ayrshire and Friesian). The individual additive genetic breed effect influenced all cow traits except annual milk ...

Enlace original: https://cgspace.cgiar.org/handle/10568/28887

Investigación en Agricultura
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Thorpe, W.R. ,  Kang'ethe, P. ,  Rege, J.E.O. ,  Mosi, R.O. ,  Mwandotto, B.A.J. ,  Njuguna, P. ,  [Crossbreeding Ayrshire, Friesian, and Sahiwal cattle for milk yield and preweaning traits of progeny in the semiarid tropics of Kenya] ,  Crossbreeding Ayrshire, Friesian, and Sahiwal cattle for milk yield and preweaning traits of progeny in the semiarid tropics of Kenya
Book 2001

Autor: Karugia, Joseph T. Okeyo Mwai, Ally Kaitho, R.J. Wollny, C.B.A. Drucker, A.G. Rege, J.E.O.

A conceptual framework for evaluating cross-breeding programmes in sub-Saharan Africa is developed based on a Kenyan case study. It depicts livestock production as a system where farm animals, plants, land and water are interlinked in particular ways and are also interlinked with the environment....

Enlace original: https://cgspace.cgiar.org/handle/10568/49799

Investigación en Agricultura
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Karugia, Joseph T. ,  Okeyo Mwai, Ally ,  Kaitho, R.J. ,  Wollny, C.B.A. ,  Drucker, A.G. ,  Rege, J.E.O. ,  [Economic analysis of cross-breeding programmes in sub-Saharan Africa: A conceptual framework and Kenyan case study] ,  Economic analysis of cross-breeding programmes in sub-Saharan Africa: A conceptual framework and Kenyan case study
Conference Paper 1998

Autor: Rege, J.E.O.

Results from 80 Reports in the literature on crossbreeding in the tropics were summarised to study the relationship between dairy performance and proportion of exotic genes. Grades higher than 1/2 exotic did not perform any worse than the Fl in all traits, except calving interval which was longer...

Enlace original: https://cgspace.cgiar.org/handle/10568/51304

Investigación en Agricultura
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Rege, J.E.O. ,  [Utilization of exotic germplasm for milk production in the tropics] ,  Utilization of exotic germplasm for milk production in the tropics
Conference Paper 2004

Autor: Ayalew, W. Getahun, E. Tibbo, Markos Mamo, Y. Rege, J.E.O.

Ethiopia has a large farm animal genetic diversity. The existence of this diversity is due in large part to its geographical location near the historical entry point of many livestock populations from Asia, its diverse topographic and climatic conditions, the huge livestock population size and th...

Enlace original: https://cgspace.cgiar.org/handle/10568/50341

Investigación en Agricultura
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Ayalew, W. ,  Getahun, E. ,  Tibbo, Markos ,  Mamo, Y. ,  Rege, J.E.O. ,  [Current state of knowledge on characterisation of farm animal genetic resources in Ethiopia] ,  Current state of knowledge on characterisation of farm animal genetic resources in Ethiopia
Conference Paper 2002

Autor: Muigai, Anne W.T. Hirbo, J. Sharkey, S. Rege, J.E.O. Blackburn, H. Hanotte, Olivier H.

The origin of the American hair sheep is diverse with likely early introductions from the Canary Islands, followed by introductions from the African and European continents. Using 14 microsatellite loci, we studied 3 American hair sheep (St. Croix, Barbados Blackbelly, and Gulf Coast Native), 6 E...

Enlace original: https://cgspace.cgiar.org/handle/10568/50589

Investigación en Agricultura
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Muigai, Anne W.T. ,  Hirbo, J. ,  Sharkey, S. ,  Rege, J.E.O. ,  Blackburn, H. ,  Hanotte, Olivier H. ,  [Genetic diversity and relationships of hair sheep breeds of the Americas: First results] ,  Genetic diversity and relationships of hair sheep breeds of the Americas: First results

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