title: Factors affecting pregnancy rate Angus Zebu and Zebu-cross cattle.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D003433:Crosses, Genetic; D004971:Estrus; D005260:Female; D007774:Lactation; D011247:Pregnancy; D011270:Pregnancy, Animal; D013045:Species Specificity