Dr. Maryane Oliveira, a postdoctoral research associate in the Stein Monogastric Nutrition Lab, presents the results of an experiment that was designed to determine whether crystalline amino acids could be fed to pigs during amino acid digestibility studies in order to ensure they meet their amino acid requirements without influencing the study results. Adapted from a presentation at the 2018 ASAS Midwestern Section meeting, Omaha, NE, March 12-14.