Fertility of heifers with sham embryo transfer through the cervix.
D000818:Animals; D002417:Cattle / Q000502:physiology*; D002584:Cervix Uteri; D004624:Embryo Transfer; D004971:Estrus; D005260:Female; D005298:Fertility; D007315:Insemination, Artificial; D011247:Pregnancy; D014184:Transplantation, Homologous