Effect of phytase on ATTD and STTD of Ca in feed ingredients of animal origin fed to growing pigs

Laura Merriman, a Ph. D. candidate in the Stein Monogastric Nutrition Laboratory, discusses her research into the effects of adding microbial phytase on the digestibility of calcium in diets containing meat and bone meal, meat meal, poultry byproduct meal, and poultry meal. Adapted from a presentation at the 2016 ASAS Midwestern Section meeting, Des Moines, IA, March 14-16.