TY JOUR TI BLOOD PARAMETERS OF MOTHER COWS BEFORE CALVING AND GRADIENTS OF CALF VITALITY KW blood KW calves KW enzymes KW serum KW reflex KW status KW immunomodulator JO Bulletin Samara State Agricultural Academy AU Baymishev, K.B. AU Baimishev, M.H. AU Eremin, S.P. AU Baimisheva, S.A. PY 2023 IS 7 PB Samara State Agrarian University