ANSC LAB EXAM 3 REVIEW 107

ANSC LAB EXAM 3 REVIEW 107 - ANSC LAB EXAM 3 REVIEW...

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ANSC LAB EXAM 3 REVIEW Nutrition Digestion o Swine “monogastric” Mouth- salivary glands secrete ingested material Esophagus- ingested material moved via a series of muscle contractions known as peristaltic waves. Stomach 29% Storage of ingested feed Muscular movements cause physical breakdown Secretes digestive juices Small intestine 29% Duodenum- secretes the digestive enzymes Jejunum- active site of nutrient absorption ileum- active site of nutrient absorption large intestine “35%” cecum- blind pouch 7% colon- largest part, reabsorption of water rectum- shapes material for defecation o horse monogastric liver, has no gallbladder large intestine 60% cecum bacterial fermentation o poultry proventriculus glandular stomach, secretes gastric juices and HCL gizzard grinds feed into finer particles by strong muscle contractions o Cattle ruminants Stomach Reticulum- honeycomb pattern Rumen- largest compartment in the mature bull/cow o 80% of size at mature o Fermentation chamber Provides an ideal environment for bacteria to work, anaerobic, warm 102F, dark, ph 5.5-6.5 Omasum- manyplies Abomasums-true stomach o Larger at birth than rumen by 60% o Same as the stomach in monogastric animals Gastric or esophagi groove
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In young ruminants A passageway extending from the cardia, to the omasum, formed by two heavy muscle folds Function to allow milk to be consumed and bypass reticulo-rumen and
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This note was uploaded on 09/12/2009 for the course ANSC 108 taught by Professor Skaggs during the Spring '08 term at Texas A&M.

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ANSC LAB EXAM 3 REVIEW 107 - ANSC LAB EXAM 3 REVIEW...

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