Livestock food is an important part of the diet of animals kept for agricultural purposes. FODDER, SILAGE, FORAGE, and oilcake are all common types of livestock food. FODDER is a type of feed made from grains, hay, or other plant material that has been chopped into small pieces. SILAGE is a type of feed made from fermented plant material, such as grass or corn. FORAGE is a type of feed made from wild plants, such as clover or alfalfa. Oilcake is a type of feed made from the residue of oilseed crops, such as soybeans or sunflowers. All of these types of livestock food provide essential nutrients to animals kept for agricultural purposes.