%0 Journal Article %T DAIRY EFFICIENCY AND GENE POLYMORPHIC VARIANTS OF KAPPA-CASEIN, BETA-LACTOGLOBULIN OF HOLSTEINED BLACK-MOTLEY CATTLE OF SAMARA TYPE %A Grashin, V.A. %A Grashin, A.A. %K genotype, milk, productivity, polymorphism, gene, Kappa-casein, beta-lactoglobulin %J Bulletin Samara State Agricultural Academy %D 2016 %N 1 %P 4 %I Samara State Agrarian University