ANSC 101 Lecture Notes - Lecture 3: Omnivore, Rumen, Hydrogenation

• School: University of Maryland
• Department: Animal Science
• Course: ANSC 101
• Professor: Kasey Moyes

Document Summary

Cow, salmon, frog, chicken: passage of digestion through the small intestine is as follows. Duodenum jejunum ileum: aquaculture requires careful management regarding which of the following. Water ph, removal of pollutants, dramatic changes in temperature, all of the above. Non-ruminant: single-compartment stomach, i. e. simple stomach, ex: pigs, humans, and chickens. Ruminant: classic foregut fermenter, stomach contains 4 compartments, regurgitate, ex: cattle, sheep, deer, elk. Pseudo-ruminants: foregut fermenter, 3 chambered stomach, do not regurgitate, ex: alpacas, camels, and hippos. Hindgut fermenter: non-ruminant, fermentation in cecum, ex: horses, rabbits, and rodents. Cellulose and hemi-cellulose: foregut and hindgut fermenters. Lignin: indigestible: older the plant, the more lignin there is. Chew cud (ruminate chew repeatedly: saliva production. Constant mixing of food contents in rumen. Microbes ferment fiber, carbohydrates, fats (biohydrogenation), and proteins (amino acids) Microbes posses enzymes not found in animal tissues that break down fiber (cellulose and hemicellulose) Carbohydrates (glucose, mannose, fructose, starches, cellulose, and hemicellulose) and proteins: volatile fatty acids (vfa;s)