MEAT PRODUCTIVITY OF SHEEP OF THE EDILBAEV BREED OF DIFFERENT GENOTYPES ACCORDING TO THE CAST GENE
This paper presents the results of studies of the CAST gene polymorphism in sheep of the Edilbaev breed. Cal-pastatin is an enzyme belonging to the calpain family of enzymes. In order to conduct molecular genetic studies in sheep of the Edilbaev breed (n=100), tissue samples were taken from the auricle with an area of 1 cm<sup>2</sup> (ear forceps). In sheep of the Edilbaev breed, the presence of two genotypes AA and ABB was revealed with a frequency of 88 and 12%, respectively. The A allele and the homozygous AA genotype were the most common. The presence of variability in these loci provides a basis for controlling the meat productivity of sheep of the Edilbaev population, therefore, in breeding farms, it is necessary to monitor polymorphism and selectfor the calpastatin gene.