TY CONF TI THE EFFECTIVENESS OF THE USE OF VACCINES «AVIVAC –PASTOVAK» AND «AVIVAC-SAL'MO-IF-PASTOVAK» FOR THE PREVENTION OF PASTEURELLOSIS IN THE COMPANY OF ZAO «AGROFIRMA BOHROVSKAYA» KURGAN REGION KW JO Proceedings of The international scientific and practical conference AU Timohina, M.A. AU Shepareva, E.I. PY 2024 PB Ural State Agrarian University