Pigs are highly trainable and intelligent animals for farming.
When you think of pigs, food and how they eat it comes to mind. Providing farm animals with consistency and a routine is the best way for your livestock to realize your expectations for them. If the weather permits you will catch me spending most of my times surveying the pigs. As soon as the ground froze over I introduced hay to their diet to make up for the foods they could no longer forage. They can rely on pellets and go crazy for table scraps. After a few times of putting the hay down and not giving them the flavourful stuff until the greeds were all gone they were disciplined.