The nursing and suckling behaviour of pigs. II. Vocalization of the sow in relation to suckling behaviour and milk ejection.
D000818:Animals; D001522:Behavior, Animal; D001835:Body Weight; D005260:Female; D007774:Lactation; D008892:Milk / Q000378:metabolism; D011247:Pregnancy; D013391:Sucking Behavior; D013552:Swine / Q000502:physiology*; D014828:Vocalization, Animal