title: Effects of heterosis on reproduction in Herford, Angus and Shorthorn cattle.
mesh_terms: D000367:Age Factors; D000818:Animals; D001835:Body Weight; D001947:Breeding; D002417:Cattle / Q000502:physiology*; D003433:Crosses, Genetic; D036861:Delivery, Obstetric; D004971:Estrus; D005260:Female; D005306:Fertilization; D006823:Hybrid Vigor; D006824:Hybridization, Genetic; D008297:Male; D011247:Pregnancy; D012098:Reproduction; D012621:Seasons; D012737:Sex Factors; D013997:Time Factors; D014886:Weaning