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Evaluation of genetic and phenotypic parameters for weight at different ages in Karakul sheep

Published online by Cambridge University Press:  23 November 2017

Mohammad Assan Jahandar ,
Mahdi Elahi Torshizi  and
Malek Hossein Delavar
Mohammad Assan Jahandar*
Affiliation:
Azad Islamic University of Bam, Bam-Kerman, Islamic Republic of Iran
Mahdi Elahi Torshizi
Affiliation:
Azad Islamic University of Bam, Bam-Kerman, Islamic Republic of Iran
Malek Hossein Delavar
Affiliation:
Azad Islamic University of Bam, Bam-Kerman, Islamic Republic of Iran
*
Email:msjahandar@yahoo.com
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Extract

Estimation of variance components is an important step in the development of animal breeding programs. The genetic and phenotype components of weight traits have been reported for different breeds. The heritability of birth weight in Targhee sheep is 0.22 (Bromley et al., 2000) and heritability of weaning weight in Suffolk sheep is 0.19 (Notter et al., 1998). Research shows that the additive genetic effect in earlylife is low (Nasholm et al., 1996). The objective of this study was to predict additive genetic effect, maternal genetic effect and heritability of lamb body weight in Karakul sheep.

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Proceedings of the British Society of Animal Science , Volume 2008 , 2008 , pp. 204
Copyright
Copyright © The British Society of Animal Science 2008

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References

Bromley, C.M., Snoder, G., and Van Vleck, L.D. 2000. Animal Science. 78, 846.Google Scholar
Nasholm, A., and Danell, O. 1996. Animal Science. 74, 329.CrossRefGoogle Scholar
Notter, D.R. 1998. Animal Science. 76, 2324.Google Scholar