TY JOUR TI COMPARISON OF THE EFFECT OF PROBIOTIC PREPARATIONS ON SOME INDICATORS OF HOMEOSTASIS IN CALVES KW probiotics KW vetom 1 KW vetom 1.2 KW comparative efficacy KW dyspepsia KW cattle KW calves KW treatment KW prevention JO Vestnik of Omsk SAU AU ELENSHLEGER, A.A. AU LELYAK, A.I. AU TREBUKHOV, A.V. PY 2024 IS 56 PB FSBEI HE Omsk SAU