Animal feed is a type of food given to animals, usually domestic animals such as cows, horses, chickens, and pigs. It can come in many forms, including SLOP, MASH, FODDER, and BRAN. SLOP is a wet mixture of grains, vegetables, and other ingredients that is fed to animals. MASH is a dry mixture of grains, vegetables, and other ingredients that is fed to animals. FODDER is a type of animal feed made from hay, straw, or other plant material. BRAN is the outer layer of cereal grains, which is often used as animal feed.