Non-Ruminant Digestion
What are Non-Ruminants?
• Animals with digestive systems that have
a simple stomach structure, also called a
monogastric system
– Most animals are classified as omnivores or
carnivores
The Non-Ruminant System
Mouth
Esophagus
Stomach
Small
Intestine
Large
Intestine
Anus
The Non-Ruminant System
• Mouth
– Collects and chews feed
and vegetation
– Teeth
• Carnivores
– Sharp teeth for tearing and
ripping
• Omnivores
– Sharp teeth and flat
molars for tearing and
grinding
The Non-Ruminant System
• Salivary Glands
– Secretes digestive enzymes
– Provide lubrication for swallowing
The Non-Ruminant System
• Esophagus
– Connects mouth to stomach
– Unidirectional
• Forceful regurgitation may occur in some animals
when sick
The Non-Ruminant System
• Stomach
– Glandular pouch
that mixes and
churns feed
– Secretes gastric
juices and
enzymes to aid in
food particle
breakdown
The Non-Ruminant System
• Pancreas
– Produces and secretes enzymes
• Aids in the digestion of carbohydrates and fats
• Liver
– Lobed reddish brown organ
– Produces bile (greenish in color)
• Aids in the digestion of fats
• Gall Bladder
– Storage sac for bile from liver
• Secretes bile into small intestine
The Non-Ruminant System
• Small Intestine
– Secretes intestinal juices
• Pale watery substance from the intestinal wall
– Protein digestion
– Buffers hydrochloric acid from the stomach
– Digests and absorbs nutrients
The Non-Ruminant System
• Small Intestine Sections
– Duodenum
• Secretion of intestinal juices, pancreatic enzymes
and bile to further digest food
– Jejunum
• Digestion
• Absorption of nutrients
– Ileum
• Absorption of nutrients
The Non-Ruminant System
• Cecum
– Non-functioning blind pouch found in-between
the small intestine and large intestine
• Large Intestine
– Absorbs water and adds mucus to undigested
feed
The Non-Ruminant System
• Rectum
– Internal sphincter which controls excretion
• Anus
– External sphincter which controls excretion
The Non-Ruminant System
Large
Intestine
Small
Intestine
Anus
Pancreas
Duodenum
Stomach Salivary
Glands
Ileum
Mouth
Rectum
Jejunum
Cecum
Gall
Bladder
Liver
Esophagus
Lobed reddish brown organ,
produces bile (greenish in
color), aids in the digestion of
fats
Secretes intestinal juices
digests and absorbs nutrients
Secretes digestive enzymes
provides lubrication for
swallowing
Secretion of intestinal juices,
pancreatic enzymes and bile
to further digest food, 1st
section of small intestine
Connects mouth to stomach
unidirectional
Glandular pouch that mixes and
churns feed, secretes gastric
juices and enzymes
Collects and chews feed and
vegetation
Produces and secretes
enzymes, aids in the digestion
of carbohydrates and fats
Who has sharp teeth for tearing
and ripping?
Absorbs water and adds mucus
to undigested feed
Storage sac for bile from liver,
secretes bile into small intestine
Who has sharp teeth and flat
molars for tearing and
grinding?
Internal sphincter which controls
excretion
Absorption of nutrients
3rd section of small intestine
Non-functioning blind pouch
found in-between the small
intestine and large intestine
External sphincter which
controls excretion
Digestion
and absorption of nutrients
nd
2 section of small intestine
The Non-Ruminant System