ANFS101 Lecture Notes - Lecture 16: Gastric Acid, Short-Chain Fatty Acid, Rumen

• School: University of Delaware
• Department: Animal and Food Sciences
• Course: ANFS101
• Professor: Griffiths Lesa

Document Summary

From stomach to small intestine: chewed up stuff mixed up in the stomach chyme, which is acidic, mixed with alkaline secretions to remove acidity, bile immulsifies fat (breaks it down into very small fat) to increase surface area. Formed in liver, stored in gall bladder: pancreatic juice that contains enzymes being secreted into the small intestine from the pancreas: trypsin chymotrypsin carboxy-peptidase, amino-peptidase intestinal lipsae, amylase. Process of absorption: active process: in order to move nutrients into the blood stream, it requires energy, small intestine (most, villi, extensive capillary network, portal vein transports nutrients to liver. Large intestine function: water is reabsorbed, electrolytes, vitamins, minerals and vfas absorbed, feces 50% bacteria by weight significant bacteria being wasted, produce some vitamins. Rumen: main function, act as a site of anaerobic bacterial fermentation, store food until the animal has time to re-chew, bacteria"s ability to digest carbohydrates (cellulose, starch) and other plant material, produce volatile fatty acids (vfas) primary energy source.