Abstract
The research was carried out in the laboratory of molecular genetic examination of the RNPC on reproduction of farm animals of the KalmSU named after B. B. Gorodovikov. The purpose of the research was to study the genetic profile and identify the influence of polymorphic candidate genes on the selection and breeding qualities of Kalmyk breed cattle. Analysis of these results by PCR-PDRF of Kalmyk bulls by the Tg locus revealed that 31% of 80 animal heads were carriers of the TT genotype associated with desirable traits, according to the GH locus in the breeding reproducer “Plodovitoye” revealed that 44% of 86 animals were carriers of the VV genotype associated with desirable economic characteristics and valuable qualities. This can be explained by the purposeful conduct of breeding work on breeding indicators in farms. Carriers of the VV genotype exceed their peers in the TT genotype by 9.1 kg (P>0.95). Based on the results obtained, it can be assumed that GH polymorphism has a positive effect on the meat productivity of Kalmyk bulls in comparison with TG.
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