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Association of leptin polymorphisms with production and reproduction traits in Iranian Holstein dairy cows

Published online by Cambridge University Press:  23 November 2017

A R Heravi Moussavi ,
M Ahouei ,
M R Nassiry  and
A Javadmanesh
A R Heravi Moussavi*
Affiliation:
Excellence Center for Animal Science, Ferdowsi University, Mashhad, Khorasan, Iran
M Ahouei
Affiliation:
Dept of Animal Science, University of Zabol, Zabol, Sistan Balouchestan, Iran
M R Nassiry
Affiliation:
Excellence Center for Animal Science, Ferdowsi University, Mashhad, Khorasan, Iran
A Javadmanesh
Affiliation:
Excellence Center for Animal Science, Ferdowsi University, Mashhad, Khorasan, Iran
*
Email: bbheravi@yahoo.com
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Extract

Leptin is a 16-kDa protein that is synthesized by adipose tissue and is involved in regulation of feed intake, energy balance, fertility and immune functions. It has been shown that leptin gene influences milk performance in cattle (Liefers et al., 2002). Leptin is related to both energy metabolism and reproduction and it was shown that leptin polymorphisms had significant effect on calving interval and weight at first calving in beef cows (Almeida et al., 2003). In cattle, the leptin gene is located on chromosome 4 and consists of three exons. The aim of this study was to indicate polymorphism at the bovine leptin gene locus in Iranian Holstein dairy cows and its contribution to the first cumulative 60-d milk yield, 305-d milk yield, days to first breeding (DFB), days open (DO), and days from first breeding to conception (DFBC) in the previous lactations.

Type
Poster presentations
Information
Proceedings of the British Society of Animal Science , Volume 2006 , March 2006 , pp. 85
Copyright
Copyright © 2016 The American Society of International Law

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References

Almeida, S. E. M., Almeida, E. A., Moraes, J. C. F., and Weimer, T. A.. 2003. Molecular markers in the LEP gene and reproductive performance of beef cattle. Journal of Animal Breeding and Genetics 120:106-113.Google Scholar
Liefers, S. C., te Pas, M. F., Veerkamp, R. F., and van der, L. T. 2002. Associations between leptin gene polymorphisms and production, live weight, energy balance, feed intake, and fertility in Holstein heifers. J. Dairy Sci. 85:1633-1638.Google Scholar