ANSI 3543 Lecture Notes - Lecture 13: Pylorus, Alpha-Amylase, Omnivore
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Digestion in Swine (Omnivore)
Digestion in swine
• Simple stomached
• Omnivorous – eats both animal and plant
Digestion in swine
• Mouth
o Used primarily for grinding feed (mechanical digestion)
o Saliva
▪ pH of 7.4 moistens feed and helps in chewing and swallowing
▪ Produced by 3 pairs of glands: parotid, mandibular, submaxillary
▪ Ptyalin (salivary amylase)
• Pig is only farm mammal with any amount of the enzyme
• Starts breakdown of starch. Of little value because feed does not stay in the
mouth very long and pH of stomach is too acidic for action in stomach
Mouth
Stomach
Liver
Gallbladder
Pancreas
Esophagus
Pyloric
sphincter
Cecum
Colon
Small
intestine
Duodenum
Jejunum
Ileum
Large
intestine
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