TY JOUR TI Approbation of identification and correction technology for dairy cows elementosis according to hair elemental composition KW dairy cattle breeding KW cows KW elemental status KW elementosis KW essential and toxic elements KW hair (wool) KW correction KW milk productivity KW reproductive ability. JO Agrarian Bulletin of the AU Miroshnikov, S.A. AU ZAVYALOV, O.A. PY 2020 IS 196 PB Ural State Agrarian University