TY JOUR TI Biocorrection of hematological and metabolic disorders in lactating cows with a feed complex KW lactating cows KW antiklos feed additive KW feed contamination KW opportunistic microflora JO Vestnik of Omsk SAU AU Goryunova, A.A. PY 2026 IS 62 PB FSBEI HE Omsk SAU