[The value of concentrated calving in preventing infertility in cows].
D000818:Animals; D002417:Cattle; D005260:Female; D007247:Infertility, Female / Q000517:prevention & control*; D007314:Insemination; D011247:Pregnancy; D011270:Pregnancy, Animal; D013997:Time Factors
Znachenie uplotnennykh otelov v profilaktike besplodiia korov.