%0 Journal Article %T POLYMORPHISM OF PARAOXONASE-1 GENE (PON1) AND ITS ASSOCIATION WITH ECONOMIC TRAITS OF HOLSTEIN CATTLE %A Safina, N.Y. %A Shakirov, S.K. %A Gaynutdinova, E.R. %A Fattahova, Z.F. %K gene; genotype; paraoxonase-1; PON1; polymorphism; heifers; cattle; growth; reproductive ability; milk yield; fat; protein. %J Vestnik of Kazan State Agrarian University %D 2020 %N 15 %P 5 %I Kazan state agrarian University