[Availability of vitamin A to cows fed with silage and the state of newborn calves].
D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D000831:Animals, Newborn; D002417:Cattle; D014802:Vitamin A Deficiency / Q000151:congenital / Q000209:etiology / Q000662:veterinary*
Obespechennost' korov vitaminom A pri silosnom tipe kormleniia i sostoianie novrozhdennykh teliat.