Undegradable intake protein refers to the portion of dietary protein that cannot be broken down and fully utilized by rumen microorganisms. Synonyms for this term include rumen undegradable protein, bypass protein, and rumen escape protein. These terms all refer to the same concept of protein that bypasses microbial fermentation in the rumen and is available for absorption in the small intestine of the animal. By providing animals with a source of undegradable intake protein, we can improve the efficiency of their feed utilization and promote growth and productivity. Common sources of undegradable intake protein include soybean meal, cottonseed meal, and blood meal.