TY JOUR TI HEIFERS POSTSLAUGHTER MEAT PRODUCTIVITY EVALUATION AT DIET USE OF FEED ADDITIVES BIODARIN KW slaughter KW calves KW morphological KW composition KW carcasses KW feed KW additive JO Bulletin Samara State Agricultural Academy AU Tagirov, K.H. AU Dolzhenkova, G.M. PY 2016 IS 1 PB Samara State Agrarian University