Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 7(s1): 60-65
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Indira Saltanovna Beishova1*, Vadim Aleksandrovich Ulyanov1, Gulshat Shaikamal1, Natalya Papusha1, Elena Valentinovna Belaya2

1Republican state enterprise on right of economic conducting “Kostanay State University A. Baitursynov” Ministry of Education and Science of the Republic of Kazakhstan, Baytursynov Street, 47, Kostanay, 110000, Kazakhstan; 2Belarusian State Pedagogical University named after Maxim Tank, Sovetskaya st., 18, Minsk, 220050, Belarus.

Abstract | The article presents the results of studying the genetic structure by bGH-AluI and bIGF-1-SnaBI polymorphisms in Holstein cows bred in Kazakhstan. It has been shown that bGH and bIGF-1 genes in the Kazakh population of Holstein cows are polymorphic. By the growth hormone gene, the frequency of bGH-AluIL allele is 0.82; of bGH-AluIV allele – 0.18; by the gene of the insulin-like growth factor-1, the frequency of bIGF-1-SnaBIA allele is 0.58; and of bIGF-1-SnaBIB allele – 0.42. By all the studied polymorphic loci, the Kazakhstan population of Holstein cows is in the state of Hardy-Weinberg genetic equilibrium. The authors believe that research should be continued and the effect of genotypes of bGH-AluI and bIGF-1-SnaBI polymorphisms on milk production should be determined.

Keywords | Holstein breed, Growth hormone gene (bGH), Insulin-like growth factor gene -1 (bIGF-1), Polymorphism, Allele, Genotype