The effects of a diet deficient in vitamin A on the development of the skull, optic nerves and brain of cattle.
D000818:Animals; D001921:Brain / Q000196:embryology*; D002417:Cattle; D004032:Diet; D005123:Eye; D009900:Optic Nerve / Q000196:embryology*; D012886:Skull / Q000196:embryology*; D014801:Vitamin A; D014802:Vitamin A Deficiency
D014801:Vitamin A
BRAIN/embryology; CRANIUM/embryology; NERVES, OPTIC/embryology; VITAMIN A DEFICIENCY/experimental