Genetic markers of meat productivity of sheep (Ovis aries L.). I. Myostatin, calpain, calpastatin

The study of genetic and biochemical bases of phenotypic polymorphism that determine meat productivity of agricultural animals is relevant for animal breeding. Breeders of USA, Europe and Australia use genes associated with quantitative and qualitative traits of meat cattle, such as CAPN and CAST (calpactin and calpain cascade), MSTN (myostatin), GDF5 (growth differentiating factor), TG5 (thyreoglobulin), LEP (leptin), FABP4 (protein binding fatty acids) in selection programs (A.V. Eenennaam, 2006; Y.F. Liu et al., 2010; U. Singha et al., 2014; A.Ciepłoch et al., 2017). The main trend in the development of sheep breeding in recent decades throughout the world is a steady growth in mutton production, which determines an increase in the proportion of specialized meat breeds and increasingly growing requirements to parameters of meat productivity of meat sheep and meat wool sheep (A.M. Holmanov et al., 2015; M.I. Selionova, 2015). In this regard, search for candidate genes associated with these parameters is given more atttantion (D...