Soybean hulls are a by-product of the extraction of oil from soybean seeds (Glycine max (L.) Merr.). After entering the oil mill, soybeans are screened to remove broken and damaged beans, and foreign material (Extension, 2008). The beans are then cracked, and their hulls, which mainly consist of the outer coats, are removed (see figure above). Soybean hulls are a by-product of soybean processing for oil and meal production. Soybean hulls have urease activity, which can be a problem in rations containing urea. Heat treatment destroys the urease activity. Soybean hulls have been found to be equal to corn for rate and efficiency of gain when fed as a creep supplement to steer calves. However there are limits to soybean hulls being equal to corn. Feedlot steers fed corn or soybean hulls as the primary dietary energy source, had similar intakes and daily gains.