title: Direct and maternal effects of egg-size genes on hatchability.
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001835:Body Weight; D002645:Chickens; D003433:Crosses, Genetic; D004531:Eggs; D005260:Female; D005796:Genes; D006823:Hybrid Vigor; D007178:Inbreeding; D008297:Male; D008954:Models, Biological; D009929:Organ Size; D012641:Selection, Genetic