TY JOUR TI THE INFLUENCE OF THE COMPLEX FODDER ADDITIVE «BIOKORETRON-FORTE» ON THE COW REPRODUCTIVE FUNCTIONS KW service-period KW impregnation capacity KW insemination index KW red-marked breed KW cows KW complex fodder additive JO Bulletin of KSAU AU Gren, O.V. PY 2013 IS PB Krasnoyarsk State Agrarian University