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Prospects for genetic improvement of milk production traits of Sahiwal cattle in Kenya

Published online by Cambridge University Press:  23 November 2017

E.D. Ilatsia ,
T. K. Muasya ,
W. B. Muhuyi  and
A. K. Kahi
E.D. Ilatsia*
Affiliation:
KARI, Naivasha, Kenya
T. K. Muasya
Affiliation:
KARI, Naivasha, Kenya
W. B. Muhuyi
Affiliation:
KARI, Naivasha, Kenya
A. K. Kahi
Affiliation:
Egerton University, Njoro, Kenya
*
Email:[email protected]
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Extract

The primary emphasis of the long-term Sahiwal cattle breeding programme is to increase milk yield by selecting cows based on their performance in first three lactations. It is therefore important to have knowledge on the extend of additive genetic variance and genetic parameters for these traits. Genetic and phenotypic parameter estimates normally apply directly to the specific population and environment from which the data were collected. In the Sahiwal cattle in Kenya, very little is known about the genetic variation of milk production traits and their genetic relationships. Furthermore, genetic and phenotypic parameter estimates for the Sahiwal cattle based on multivariate animal model are scarce. This paper presents estimates of variance components and genetic parameters for milk production traits using trivariate animal model.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 69
Copyright
Copyright © The British Society of Animal Science 2007

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References

Dahlin, A., Khan, U. N., Zafar, A. H., Saleem, M., Chaundhry, M. A. and Philipsson, J. 1998. Genetic and environmental causes of variation in milk production traits of Sahiwal cattle in Pakistan. Animal Science. 66: 307–318.Google Scholar
Ilatsia, E. D., Muasya, T. K., Muhuyi, W. B. and Kahi, A. K. Genetic and phenotypic parameters and Annual trends in milk production and fertility traits of Sahiwal cattle in semi arid Kenya. Tropical Animal Health and Production. (In press).Google Scholar
Meyer, K. 1989. Restricted maximum likelihood to estimate variance component for animal models with several random effects using a derivative free algorithm. Genetics, Selection and Evolution. 21: 318–327.Google Scholar