TY JOUR TI EXPERIENCE OF TREATMENT OF A SPECIFIC ULCER OF A SOLE OF COWS KW specific sole ulcer in cows KW cattle KW treatment JO Bulletin of KSAU AU Kolosova, O.V. AU Petrova, E.A. AU Sarazhakova, I.M. PY 2019 IS PB Krasnoyarsk State Agrarian University