[Some problems of preventing disorder of the vitamin A nutrition of cows].
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle; D003035:Cobalt / Q000494:pharmacology*; D004872:Ergocalciferols / Q000494:pharmacology*; D005260:Female; D014801:Vitamin A / Q000378:metabolism*
D004872:Ergocalciferols; D014801:Vitamin A; D003035:Cobalt
Nekotorye voprosy profilaktiki narusheniĭ A-vitaminnogo kormleniia korov.