Abstract

Productivity and Qualitative Meat Indicators of Angus Steers of Various GH Genotypes

Highlights

  • The intensity of the breeding process to improve breeds and cattle populations is largely related to the objectivity of the evaluation of breeding qualities of stud bulls and stud stock

  • For the polymerase chain reaction (PCR), a Gene Pak TMPCR Core set (Iso Gen, Russia) and Encyclo PCR kit (Evrogen, Russia) were used with primers synthesized in the Research and Production Company Litech

  • The alleles of the investigated gene were typed using amplification products by the restriction endonuclease Alul for the GH gene followed by the electrophoretic analysis of the restriction products in the agarose gel

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Summary

Introduction

The intensity of the breeding process to improve breeds and cattle populations is largely related to the objectivity of the evaluation of breeding qualities of stud bulls and stud stock. The age of animals influences the effectiveness of the assessment, i.e., the younger the animal (especially the bull) to be assessed is, the more effective the selection progress is. The DNA technologies make it possible to minimize the age for evaluation of the animal genotype. Researchers in Russia and other countries (Barendse, 2003; Kaminski et al, 2008; Gorlov et al, 2014; Fedunin et al, 2014) have noted that it is possible to select the desired genotypes of animals right after their birth. Genetic markers associated with quantitative and qualitative indicators of productivity were identified (Lacorte et al, 2006; Barendse, 2007).

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