%0 Journal Article %T Experience in the use of polymerase chain reaction in the diagnosis of bovine leukemia virus and its effectiveness at different stages of health activities %A Bezborodova, N.A. %A Petropavlovskiy, M.V. %A Romanova, A.S. %A Lysov, A.V. %A Kozhukhovskaya, V.V. %K leukemia virus, cattle, cows, PCR diagnostics, immunological tolerance, virus transmission, virus types. %J Agrarian Bulletin of the %D 2019 %N 191 %P 7 %I Ural State Agrarian University