Pig slop is made of a variety of foods and is usually a mix of grains and produce. It often includes foods like melon rinds and stale bread.
Pigs are omnivores and require a diet that's rich in variety. They primarily eat high grains, but farmers will supplement their diet with pig slop. Pig slop varies based on the ingredients that are available. Some farmers will drop buckets off at public places, such as nursing homes and schools, to have the kitchen fill with their leftover foods.
Leftover foods that make up pig slop may include scrap foods that humans don't eat. From cucumber peels to apple cores, the foods still include important nutrients for pigs at a fraction of the price.