1. Roughage: Roughage is a type of feed that is high in fibre and low in nutrients. It helps to keep the cow's digestive system healthy and functioning properly. Some examples of roughage include hay, straw, and corn stalks.
2. Concentrate: Concentrate is a type of feed that is high in nutrients and low in fibre. It helps to provide the cow with the energy and nutrients it needs to grow and produce milk. Some examples of concentrates include grain, oilseed meals, and molasses.