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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 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 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
Journal Article 1991

Autor: Rege, J.E.O.

The Kenya Livestock Recording Centre progeny testing data base covering the period 1968 through 1987 was used to estimate genetic and phenotypic trends in Friesian cattle for milk yield of all lactations, first lactation milk yield, age at first calving, and calving interval. Annual genetic and p...

Enlace original: https://cgspace.cgiar.org/handle/10568/28852

Investigación en Agricultura
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Rege, J.E.O. ,  [Genetic analysis of reproductive and productive performance of Friesian cattle in Kenya. II. Genetic and phenotypic trends] ,  Genetic analysis of reproductive and productive performance of Friesian cattle in Kenya. II. Genetic and phenotypic trends
Journal Article 2004

Autor: Eneyew, N. Rottmann, O.J. Pirchner, F. Rege, J.E.O.

The pattern of growth and carcass composition of indigenous Ethiopian fat tailed Menz and Horro lambs were assessed through serial slaughter and carcass dissection of 147 lambs at five different growth phases. The GLM procedure of Statistical Analysis Systems Institute and allometric growth equat...

Enlace original: https://cgspace.cgiar.org/handle/10568/28330

Investigación en Agricultura
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Eneyew, N. ,  Rottmann, O.J. ,  Pirchner, F. ,  Rege, J.E.O. ,  [Growth and carcass composition of tropical fat-tailed Menz and Horro sheep breeds] ,  Growth and carcass composition of tropical fat-tailed Menz and Horro sheep breeds
Journal Article 2002

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), 6-month weight (6MWT) and yearling weight (YWT) in indigenous Ethiopian Horro sheep using the average information REML (AIREML). Four different models: sire model (Model 1), dire...

Enlace original: https://cgspace.cgiar.org/handle/10568/32974

Investigación en Agricultura
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Abegaz, S. ,  Negussie, E. ,  Duguma, G. ,  Rege, J.E.O. ,  [Genetic parameter estimates for growth traits in Horro sheep] ,  Genetic parameter estimates for growth traits in Horro sheep
Conference Paper 2000

Autor: Ermias, E. Rege, J.E.O. Banerjee, A.K.

Slaughter data from 304 Menz and 153 Horro rams were analysed to determine between breeds differences in yields of carcass and edible non-carcass components, with the primary aim of creating awareness in the way animal evaluations for meat production may be modified to incorporate local cultures....

Enlace original: https://cgspace.cgiar.org/handle/10568/50135

Investigación en Agricultura
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Ermias, E. ,  Rege, J.E.O. ,  Banerjee, A.K. ,  [Alternative approach for evaluating small ruminant genotypes for meat production in Ethiopia] ,  Alternative approach for evaluating small ruminant genotypes for meat production in Ethiopia
Conference Paper 1996

Autor: Das, S.M. Rege, J.E.O. Shibre, M.

Twenty-five year (1965-89) data on the Blended goats from Malya Research Centre totalling 4799 records were analysed for live weights and growth traits from birth to 72 weeks of age. The Blended goat developed in Malya, Tanzania, is a stabilised three-way cross of the Kamorai (55%), Boer (30%) an...

Enlace original: https://cgspace.cgiar.org/handle/10568/70865

Investigación en Agricultura
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Das, S.M. ,  Rege, J.E.O. ,  Shibre, M. ,  [Phenotypic and genetic parameters of growth traits of blended goats at Malya, Tanzania] ,  Phenotypic and genetic parameters of growth traits of blended goats at Malya, Tanzania
Conference Paper 1990

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

Investigates environmental sources of variation influencing growth traits of the Dorper and Dorper X Red Maasai sheep with special reference to the relative performance of various geneotypes. Lamb traits studied were weights from birth to yearling and absolute growth rates between adjacent stages...

Enlace original: https://cgspace.cgiar.org/handle/10568/50086

Investigación en Agricultura
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Inyangala, B.A.O. ,  Rege, J.E.O. ,  Itulya, S. ,  [A comparative study of the Dorper and Dorper X Red Maasai sheep] ,  A comparative study of the Dorper and Dorper X Red Maasai sheep
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
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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

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