Chow for a cow is a term used to describe the food that cows eat. It typically consists of HAY, which is dried grass, and other types of feed such as grains, silage, and minerals. HAY is the most common type of chow for a cow, and it is usually cut and dried before being stored in bales. Other types of feed are also used to supplement the cow's diet, providing them with the necessary nutrients to stay healthy.