I don't know the first thing about hogs...well actually, I do know the first thing...but as for the following second, third and fourth things, I fall a little short.
My co-worker Christy, however, knows all sorts of things about raising hogs. She's from Iowa, and her parents raise feeder to finish pigs.
It's a pretty neat thing, the modern day practices involved in hog production. Christy recently wrote a really cool post on raising hogs in Iowa, and you should go check it out here.