i mispoke in my early comment. Didnt realize it until one of the guys in the office pointed it out to me. Some of the amino acids and peptides are by-passed through to the small intestine. a good majority of them are utilized by the microbes in the rumen. We show a total of 15-20 percent being pasted through to the small intestine while having 80-85 percent of Rumen Degradeable Protein.