Correlations between calving ease and calf survival.
Multitrait restricted maximum likelihood methods were used for estimation of heritabilities and genetic and phenotypic correlations between calving ease and calf survival. These analyses examined both direct and maternal effects. Genetic correlation for direct effects between calving ease and calf survival was approximately -.8 in both heifers and cows, indicating favorable associations, whereas phenotypic correlations were -.32 and -.22.
D000818:Animals; D002417:Cattle / Q000235:genetics / Q000502:physiology*; D002418:Cattle Diseases / Q000453:epidemiology*; D036861:Delivery, Obstetric / Q000662:veterinary; D005260:Female; D005313:Fetal Death / Q000453:epidemiology / Q000662:veterinary*; D007743:Labor, Obstetric; D008954:Models, Biological; D011247:Pregnancy