TY JOUR TI THE SPREADING OF CATTLE VIRAL AND MYCOPLASMAL INFECTIONS IN THE LIVESTOCK ENTERPRISES IN THE CENTRAL SIBERIA KW cattle KW infection KW viruses KW mycoplasma KW livestock enterprises KW Central Siberia JO Bulletin of KSAU AU Stroganova, I.Y. AU Khlystunov, A.G. AU Trukhonenko, A.A. AU Gumennaya, E.Y. PY 2013 IS PB Krasnoyarsk State Agrarian University