TY JOUR TI EFFECT OF THE COMBINED HEPATOPROTECTIVE PREPARATION ON A SOW METABOLIC PROCESS KW hepatosis KW sows KW carnitine hydrochloride KW tocopherol KW zinc KW sodium citrate KW blood biochemical parameters KW metabolic status JO Bulletin Samara State Agricultural Academy AU Hlebus, N.C. PY 2023 IS 7 PB Samara State Agrarian University