GENETIC PROFILE OF KAZAKH WHITE-HEADED YOUNG BULLS BASED ON MARKER GENES GH, TG AND LEP

Abstract

The use of molecular genetic methods to select animals with high productivity parameters is currently relevant. The research aims to identify genetic markers associated with the productivity parameters of different genotypes of Kazakh White-Headed young bulls. Individual features of gene polymorphisms (GH, TG, LEP) controlling meat productivity were identified, manifested in the specificity of the allelic spectrum and the frequency of genotypes in the studied group of beef cattle. The presence of desirable alleles was found in the GH, TG, and LEP genes. The best live weight gain was observed in tested young bulls with the desirable GH, TG, and LEP genotypes. Live weights ranged from 26,45 to 27,32 kg at birth and from 198,10 to 208,95 kg by day 205 of life in the tested group of Kazakh White-Headed young bulls. Thus, the data obtained from Kazakh White-Headed young bulls demonstrate significant potential for improving meat quality and, consequently, increasing the profitability of the cattle farming industry.