Diego Navarro is a Ph. D. student in the Stein Monogastric Nutrition Lab. He discusses the results of an experiment to determine the concentration of digestible and metabolizable energy in two sources of enzyme treated soybean meal, an extruded soybean meal that was subsequently fortified with an enzyme treatment, a source of soy protein concentrate, conventional soybean meal, conventional 00-rapeseed expellers, and a fermented co-product mixture containing fermented rapeseed meal, wheat, soy molasses, and potato peel. Adapted from a presentation at the 2015 ASAS Midwestern Section meeting, Des Moines, IA, March 15-18.