ANSC 3120 Study Guide - Final Guide: Pancreas, Chymotrypsinogen, Trypsinogen

• School: University of Guelph
• Department: Animal Science
• Course: ANSC 3120
• Professor: Ming Fan

Document Summary

Lecture topic 1: digestive utilization of cp and major nitrogenous nutrient compounds in animals. Small intestine epithelial cell linages: columnar absorptive cells (for terminal nutrient digestion and absorption, enteroendocrine cells (secretes gut hormones, goblet cells (secretes mucus, lymphocytes. Largest storage of immune cells is in the small intestine. Small intestine is highly metabolically active because there is a high turnover of cells: mucosal cells have high rate of regenerating and, absorptive cells play roles in terminal phase of nutrient digestion and absorption need trophic nutrients. Non-immune defense mechanisms: gastric secretion of acid (creating low ph, proline-rich glycoproteins secretion in the saliva, gastrointestinal mucosal mucus, mucin protein secreted by goblet cells. Saliva, gastric juices, pancreatic juices, bile and sloughed mucosal cells use nitrogen. Gut symbiotic bacteria needs ammonia breaking down protein into aas into volatile short-chain fas (vfas) adding these with ammonia and energy to allow microbial growth. Animals also need ammonia from aa catabolism to synthesize necessary aas.