TY JOUR TI To the question of evaluating the efficiency of linear breeding in Simmental cattle breed different origin KW sire KW Simmental breed KW genealogical bloodlines KW milk production KW breeding value KW BLUP JO Agrarian Bulletin of the AU Ignat'eva, L.P. AU Konte, A.F. AU Sermyagin, A.A. PY 2020 IS 197 PB Ural State Agrarian University