title: Factors affecting birth weight, dystocia and preweaning survival in sheep.
mesh_terms: D000818:Animals; D001724:Birth Weight; D004420:Dystocia / Q000235:genetics / Q000662:veterinary*; D005260:Female; D014644:Genetic Variation; D006801:Humans; D008297:Male; D008423:Maternal Age; D011247:Pregnancy; D011272:Pregnancy, Multiple; D012641:Selection, Genetic; D012737:Sex Factors; D012756:Sheep; D012757:Sheep Diseases / Q000235:genetics* / Q000401:mortality; D014886:Weaning