Contrary to their appearance, pigs are quick thinking, fast moving animals. There are three types of domesticated American pigs, categorized by size and weight. The large, lard pig carries a thick layer of fat and weighs a minimum of 220 pounds. Bacon pigs are 150 pounds. Pork pigs weigh 100 pounds.
Pigs are intelligent, highly trainable animals.
The American pig is used routinely in animal shows around the world, where pigs have been taught to follow a series of commands. For this reason, breeding pigs as a commercial venture is both popular and beneficial. Pigs are known for their ability to eat almost anything, so maintaining weight and body size is never a problem. A large variety of products are produced from the American pig each year. Pigs in the United States are raised primarily for sausage, bacon, pork and ham production.