ORIGINAL PAPER
Polymorphism of BTN and GHR genes and its impact on bulls’ breeding value for milk production traits
J. Komisarek 1  
,   Z. Dorynek 1
 
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August Cieszkowski Agricultural University, Department of Cattle Breeding, Wojska Polskiego 71 A, 60-625 Poznań, Poland
CORRESPONDING AUTHOR
J. Komisarek   

August Cieszkowski Agricultural University, Department of Cattle Breeding, Wojska Polskiego 71 A, 60-625 Poznań, Poland
Publication date: 2003-10-28
 
J. Anim. Feed Sci. 2003;12(4):681–688
 
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ABSTRACT
The aim of the study was to estimate the effect of the butyrophilin (BTN) and growth hormone receptor (GHR) gene polymorphisms on the breeding value of genotyped AI bulls for milk production traits. A total of 131 Holstein-Friesian bulls were analysed. The following allele frequencies have been found: 0.88 (L) and 0.12 (A) at the BTN locus, and 0.85 (S) and 0.15 (G) at the GHR locus. The effect of genotype on milk yield and composition was tested in the group of 101 AI proven bulls. Because the number of A/A and G/G animals was very low, the gene-trait association analysis was reduced to the comparison of two remaining genotypes at each locus. No signifcant association has been found. However, bulls with the L/L genotype at the BTN gene were characterized by a higher breeding value for milk fat content than animals with the L/A genotype (P≤0.1).
 
CITATIONS (1):
1.
Novel polymorphisms of goat growth hormone and growth hormone receptor genes and their effects on growth traits
Xiaopeng An, Lixin Wang, Jinxing Hou, Guang Li, Yuxuan Song, Jiangang Wang, Mingming Yang, Yihong Cui, Binyun Cao
Molecular Biology Reports
 
ISSN:1230-1388