%0 Journal Article
%T Length of productive life the cows of Simmental breed
%A Ignat'eva, L.P.
%A Sermyagin, A.A.
%K length of productive life, age of culling, milk production, lifetime productivity, correlation parameter, Simmental breed
%J Agrarian Bulletin of the
%D 2021
%N 213
%P 8
%I Ural State Agrarian University