[Solid barrier to sterility in cows].
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D005260:Female; D007247:Infertility, Female / Q000662:veterinary*; D007315:Insemination, Artificial / Q000662:veterinary; D012426:Russia
Besplodiiu korov--prochnoĭ zaslon.