Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Asian Journal of Animal Sciences
Year: 2008  |  Volume: 2  |  Issue: 1  |  Page No.: 1 - 6

Association Between Gene Polymorphism of Bovine Growth Hormone and Milk Traits in the Iranian Holstein Bulls

M. Sadeghi, M. Moradi Shahr-e-Babak, G. Rahimi and A. Nejati Javaremi    

Abstract: The objective of this study was to obtain genetic marker information in the Iranian Holstein bulls by analyzing bGH gene polymorphism and to verify its association with milk production traits. One sample including 134 Iranian Holstein bulls was genotyped at bGH gene restriction sites (bGH-AluI). Gene frequencies of L and V alleles were 0.936 and 0.064, respectively. Genotypes are distributed according to the Hardy-Wienberg equilibrium. Differences in the milk and fat yield between the two genotypes approached significance (p≤0.10). Bulls with LL genotype had higher milk, fat yield compared to LV genotypes. Present study showed that the L allele was associated with protein yield (p≤0.021). No associations (p>0.1) were found between the genotypes and fat and protein percent. The dominant L allele at the bGH locus favours higher production of milk protein. It can be concluded that this locus is a QTL or is in disequilibrium linkage with one or more tightly linked QTL. Thus it could be a useful DNA marker for milk production traits in dairy cattle breeding.

Cited References   |    Fulltext    |   Related Articles   |   Back
   
 
 
 
  Related Articles

 
 
 
 
 
 
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility