They do have some energy value, but the risks are too high to feed them to horses. Screen or clean all corn and remove screenings before feeding or processing the corn for horse feed. Keep stored corn and feeds containing corn dry and protected from moisture. Avoid the use of corn of unknown sources for feed or mixing in horse feed. Avoid mixing corn at above 50 percent of the mixture in horse feeds.
Sampling techniques are important to obtain a representative sample of the feed.
Contact the diagnostic laboratory for suggestions on sampling. Corn is an excellent source of energy and a useful feed for horses, as long as some precautions are taken.