Valuing feed ingredients, Part 2: Nutrients in the GI tract

In Part 2 of a presentation on methodology for valuing quality of feed ingredients, Dr. Hans H. Stein discusses digestion, absorption, and excretion of nutrients. Adapted from a presentation at the 2011 ADSA-ASAS Midwest Sectional Meeting, Des Moines, IA, March 14-16 2011.