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Pig digestive system
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Pig digestive system
Jordan Mcintyre
Mouth
Bites and masticates (chew) food to increase surface area of feed particles
Saliva in the mouth stimulates taste and softens and lubricates food.
Saliva also contains salivary amylase and maltase enzymes to help change some starch to maltose (malt sugar).
The tongue guides feed to the esophagus and can also aid in prehension for some species.And also a pigs mouth weighs 50
Esophagus
Stomach
Muscular tube next to trachea
Guides bolus from mouth to the stomach with involuntary muscular waves or contractions
Stomach
Esophagus
A U-shaped sac connected to the esophagus
Enzymes and gastric juices are secreted to act on feed particles from concentrates.
small intestine
Long coiled tube, divided into three sections—the duodenum, the jejunum, and the ileum
Chyme is mixed with bile, pancreatic juice, and intestinal juice.
Intestinal juice is secreted by the intestinal wall and contains enzymes that break down proteins and sugars.
small intestine
Cecum
cecum
A blind pouch located between small and large intestines
Much larger in hind-gut fermenters as it is used to digest roughages
Uses microbial action to break down roughages
large intestine
A blind pouch located between small and large intestines
2. Much larger in hind-gut fermenters as it is used to digest roughages
3. Uses microbial action to break down roughages
oiled tube shorter in length, but larger in diameter, than the small intestine; divided into the colon and rectum
2. Absorbs water and adds mucus to the undigested feed to form feces; some enzymatic and microbial digestion
Anus
Monogastric digestion-Anus —end of digestive tract where waste is excreted
Anus
pancreas
The pig pancreas is a retroperitoneal organ, with comparable anatomical orientation and localization to the human.