Gloria Casas, a Ph. D. candidate in the Stein Monogastric Nutrition Lab, discusses the results of her research into the effects of phytase on phosphorus digestibility in brown rice, broken rice, full fat rice bran, defatted rice bran, and rice mill feed fed to growing pigs. Adapted from a presentation at the 2015 ASAS Midwestern Section meeting, Des Moines, IA, March 15-18.