Most feedstuffs that are fed to other livestock are safe for horses. Soybean hulls in the pelleted form are a good source of highly digestible fiber for horses and are slightly lower than oats in terms of nutritional value. However, they are not very palatable to horses. It is recommended that you limit them to about 50% of the diet and mix them with a sweet feed to ensure consumption because of the low palatability. Remember that if you are mixing them with a balanced sweet feed, you are destroying the nutritional balance of the sweet feed. For a mature horse at maintenance, this should not be a problem if only fed short time such as to meet energy needs during winter. Unpelleted soybean hulls are not recommended because they are hard to handle and tend to blow around in the feeder.
