Livestock farmers need to feed and provide bedding for their animals. They either grow hay and straw themselves, or purchase it from others.
To make hay, farmers grow certain grasses, which they then cut and cure. Several nutritional grasses and legumes can be used for hay, including alfalfa, clover, and timothy. Farmers cut and dry the grasses and then use the hay as animal fodder. Hay-making requires an understanding of when to cut each particular type of grass. Farmers need several consecutive days of fair weather for the hay to dry. Hay-making is both a science and an art.