ADSC 2010 Lecture 16 Outline of Last Lecture I Video Ruminants II Digestive Systems Monogastrics A Monogastrics B Component Functions a Mouth b Esophagus c Stomach d Small Intestine 1 Three Sections 2 Digestion in SI 3 Digestive Organs Outline of Current Lecture I Digestive Systems Monogastrics continued II Pig Diagram Enzymes A Salivary Gland B Stomach C Duodenum D Pancreas E Liver Gall Bladder III Large Intestine IV Ruminant Digestive System A Segments of Ruminant Digestive System 1 Mouth Current Lecture I Digestive Systems Monogastrics continued A Small Intestine Pancreas also secretes insulin and glucagon to control blood glucose levels II Pig Diagram Enzymes Pepsin Proteinase Rennin Small amounts of lipase Bile Mucin Amylase Carbs Maltose Lactose Sucrose Proteins Amino peptidase Dipeptidase DNA RNA Nucleotidase Nucleosidase III IV Carbs Amylase Lypase Proteins Trypsin Chymotrypsin Carboxinpeptase Absorption feed digested to amino acids glucose and fatty acids it is absorbed into bloodstream Metabolites travel to liver and are further metabolized or detoxified if harmful Large Intestine A Cecum Blind end of the anterior LI Important in Horses as a site of microbial digestion Microbes digest cellulose and produce volatile fatty acids B Colon Major site of water absorption C Rectum Expels material out of body Pig LI 12 feet long Ruminant Digestive System Ruminant Four footed even toed cud chewing animals which have a stomach consisting of four division or chambers 1 Rumen 2 Reticulum 3 Omasum 4 Abomasum Foregut Fermenter Cattle sheep deer goats buffalo A Segments of Ruminant Digestive System 1 Mouth Large amount in a short period of time Cattle dental pad Sheep Flexible split lip closer grazers Tongue long papillae for wrapping around grass Saliva no enzymes lubricant only
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