How much grain is given to a 1000 pound horse day?

Horses are typically fed 1.5-2% of their body weight in hay or forage each day. So a 1000 pound horse would be fed 15-20 pounds of hay per day. In addition to hay, horses may also be fed grain or concentrates, such as oats, corn, or barley. The amount of grain fed will depend on the horse's activity level, age, and health. A horse in light work may be fed 2-4 pounds of grain per day, while a horse in heavy work may be fed up to 8-10 pounds of grain per day. It's important to feed horses the correct amount of grain to avoid health problems such as obesity, laminitis, or ulcers.