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Polymorphism of the Growth Hormone Gene in Iranian Holstein Cows

Published online by Cambridge University Press:  23 November 2017

S. Tavakoli ,
M. A. Edriss ,
H. R. Rahmani ,
B. E. Sayed-Tabatabaei  and
Gh. R. Ghorbani
S. Tavakoli*
Affiliation:
Isfahan University of Technology (IUT), Isfahan, Islamic Republic of Iran
M. A. Edriss
Affiliation:
Isfahan University of Technology (IUT), Isfahan, Islamic Republic of Iran
H. R. Rahmani
Affiliation:
Isfahan University of Technology (IUT), Isfahan, Islamic Republic of Iran
B. E. Sayed-Tabatabaei
Affiliation:
Isfahan University of Technology (IUT), Isfahan, Islamic Republic of Iran
Gh. R. Ghorbani
Affiliation:
Isfahan University of Technology (IUT), Isfahan, Islamic Republic of Iran
*
Email:[email protected]
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Extract

Selection in dairy breeding is basically aimed at milk production and composition of milk (Kovacs et al., 2006). Bovine growth hormone gene is an excellent candidate for linkage relationships with quantitative trait loci (QTL). A polymorphic region in exon V of the bovine GH gene results in a nucleotide change related to the occurrence of variants with leucine (Leu) or valine (Val) at amino acid position 127 of the protein. This polymorphism was found to be associated with milk production traits (Lucy et al., 1993). The aim of the present study was to explore the frequency of GH/AluI alleles in Iranian Holstein cows and look for relationships between the bGH gene and milk production traits.

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Proceedings of the British Society of Animal Science , Volume 2008 , 2008 , pp. 211
Copyright
Copyright © The British Society of Animal Science 2008

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References

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