I have a question about the crates for sows. My DH a LONG time ago worked in an Iowa hog confinement. He told me that they put the sows in the crates to protect the babies as they're born. Otherwise the sow tended to lay on the piglets and kill them. It wasn't used on a permament basis. Wouldn't here be a high loss if they quite using them? My in-laws raised backyard pigs and had to be there at every birth to protect the piglets,wouldn't this make it pretty labor intensive on a confinement?