TY JOUR TI EPIZOOTIC SITUATION FOR LEUKEMIA IN CATTLE IN THE AREA OF THE FAR EAST KW leukemia KW cattle KW monitoring KW con-taminate KW epizootic process JO Bulletin of KSAU AU Shulga, N.N. AU Shulga, I.S. AU Plavshak, L.P. AU Dikunina, S.S. PY 2016 IS PB Krasnoyarsk State Agrarian University