The world’s largest pork producer, Smithfield Foods, intends to phase out gestation crates for female pigs. "Of the 60 million pigs in the United States, over 95 percent are continuously confined in metal buildings, including the almost five million sows in crates. In such setups, feed is automatically delivered to animals who are forced to urinate and defecate where they eat and sleep." Gestation crates nearly immobilize pregnant females, and keep them from even being able to turn around.