title: Sodium deprivation, feather pecking and activity in laying hens.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D002645:Chickens / Q000502:physiology*; D005241:Feathers; D005260:Female; D006799:Housing, Animal; D010058:Oviposition; D011201:Poultry Diseases / Q000453:epidemiology / Q000378:metabolism*; D012964:Sodium / Q000172:deficiency*
chemical_list: D012964:Sodium