Genetic aspects of fertility in the pig.
D000818:Animals; D000831:Animals, Newborn; D005260:Female; D005298:Fertility; D005313:Fetal Death / Q000662:veterinary; D005823:Genetics; D006128:Growth; D006823:Hybrid Vigor; D007178:Inbreeding; D008297:Male; D009026:Mortality; D011247:Pregnancy; D011272:Pregnancy, Multiple; D012641:Selection, Genetic; D013552:Swine