%0 Journal Article %T "EVALUATION OF THE EFFECT OF POLYMINERAL FEED ADDITIVE FOR PREVENTION OF OBSTETRIC PATHOLOGY IN PREGNANT COWS %A Usevich, V.M. %A Drozd, M.N. %A Buraev, M.E. %A Luckaya, L.P. %K %J Agrarian Bulletin of the %D 2018 %N 172 %P 0 %I Ural State Agrarian University