title: Welfare challenges in sow housing.
authors.affiliation: The Humane Society of the United States, 2100 L St NW, Washington, DC 20037, USA.
authors.forename: Michael C
authors.initials: MC
authors.lastname: Appleby
mesh_terms: D000822:Animal Husbandry / Q000379:methods* / Q000592:standards; D000827:Animal Welfare; D000818:Animals; D001522:Behavior, Animal; D005260:Female; D006799:Housing, Animal / Q000191:economics / Q000941:ethics* / Q000592:standards*; D011247:Pregnancy; D013552:Swine / Q000502:physiology* / Q000523:psychology