title: The value of selecting and retaining gray partridge breeders.
mesh_terms: D000818:Animals; D001717:Birds / Q000502:physiology*; D001947:Breeding; D004531:Eggs; D005260:Female; D005298:Fertility; D007185:Incubators; D008297:Male; D012641:Selection, Genetic; D012726:Sexual Behavior, Animal; D013731:Territoriality