%0 Journal Article
%T PRODUCTIVE LONGEVITY OF HOLSTEIN COWS DEPENDING ON THE  GENOTYPE OF THE BULL BY KAPPA-CASEIN GENE AND COUNTRY OF ORIGIN
%A Yudina, O.P.
%A Usova, T.P.
%A Sapegina, E.V.
%K longevity, genotype, bull, gene, Kappa-casein, productive, Holstein
%J Bulletin Samara State Agricultural Academy
%D 2019
%N 4
%P 5
%I Samara State Agricultural Academy