TY JOUR TI PECULIARITIES OF MILK PRODUCTIVITY OF RED-MARKED BREED HEIFERS WITH DIFFERENT GENOTYPES ON KAPPA-CASEIN GENE KW red-marked breed KW heifers KW genotype KW gene of kappa-casein KW milk productivity JO Bulletin of KSAU AU Tschetvertakova, E.V. PY 2012 IS PB Krasnoyarsk State Agrarian University