TY JOUR TI STUDYING THE EFFECTIVENESS OF DIFFERENT TREATMENT REGIMENS FOR CALVES WITH SIGNS OF KERATOCONJUNCTIVITIS IN LIVESTOCK FARMING CONDITIONS KW conjunctivitis KW keratoconjunctivitis KW calves KW treatment KW effectiveness JO Vestnik of Omsk SAU AU TROFIMOV, I.G. AU OKOLELOV, V.I. AU KOSHKIN, I.N. PY 2023 IS 52 PB FSBEI HE Omsk SAU