[Efficacity of vitamins A and E in sterility in cows].
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D005260:Female; D007247:Infertility, Female / Q000662:veterinary*; D011247:Pregnancy; D014801:Vitamin A / Q000627:therapeutic use*; D014810:Vitamin E / Q000627:therapeutic use*
D014801:Vitamin A; D014810:Vitamin E
Effektivnost' vitaminov A i E pri besplodii korov.