Transcript Digestive System

Digestive System
=
takes food ingested by the animal and
converts it into a form that the animal
can use
Digestive System

Two types:
1 Monogastric
=
one compartment in
their stomach
2 Ruminant
=
multicompartmental
stomach
Monogastric System

Simple stomach system
– one compartment in their stomach

Fed concentrates
– cannot digest large amounts of fiber
Digestive System

Monogastric
Monogastric System
Components
Tongue
used for grasping food
Teeth
tear and chew feed into
smaller pieces
Saliva
water to moisten
mucin to lubricate
start breakdown process
Monogastric System
Components
Esophagus
moves food from the
mouth to the stomach
Stomach
breakdown of food
Small Intestine
nutrient absorption
- into bloodstream (villi)
Monogastric System
Components
Large Intestine
removal of water
Rectum
Pass waste to anus
Anus
Hole where waste leaves the
body
Bird Digestive System
Digestive System

Two types:
1 Monogastric
=
one compartment in
their stomach
2 Ruminant
=
multicompartmental
stomach
Ruminant System

Multicompartmental Stomach


regurgitate chunks of food
–bolus
Eat roughage (plants)
Digestive System
Ruminant
Ruminant System
Components
Tongue
used for grasping food
Teeth
no upper front teeth
- tear
Saliva
no enzymes
- high nitrogen for
bacteria
Ruminant System
Components
Rumen
food fermented
breakdown fibrous feeds
carbohydrates broken down
fatty acids absorbed
Reticulum
collect foreign material
Ruminant System
Components
Omasum
grind roughage
Abomasum
true stomach