Food in the cow’s mouth is masticated a first time to reduce the length of grass or hay. When she eats, the cow chews very little and swallows her food almost whole. The cow has no upper incisors. When she grazes, she doesn’t cut the grass with her teeth, but pulls on it to tear it.
Cows can be fed with field grass and silage composed of alfalfa, millet and corn. Silage is a conservation process that allows the food to ferment, providing it with added nutritional value. Cows also eat mineral or soybean-based mashes and grains such as barley.