title: The reproductive efficiency of pigs in Australia with particular reference to litter size.
mesh_terms: D000818:Animals; D001315:Australia; D000013:Congenital Abnormalities / Q000453:epidemiology; D005260:Female; D005298:Fertility; D005313:Fetal Death / Q000453:epidemiology; D007746:Labor Presentation; D010048:Ovarian Cysts / Q000453:epidemiology; D010060:Ovulation; D010922:Placenta Diseases / Q000453:epidemiology; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000453:epidemiology; D011270:Pregnancy, Animal; D012744:Sex Ratio; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology; D013997:Time Factors