1. Ruminant Digestive System Student Note Outline

2. Ruminants Ruminant are animals that .
This allows them to , which monogastrics
A few animals with ruminant digestive systems are __________, _____________, and ____________.
are usually ruminant animals.
Ruminants eat , and
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3. Four Compartments: 1st-Rumen 2nd-Reticulum 3rd-Omasum 4th-Abomasum
The Ruminant Stomach
Four Compartments:
1st-Rumen
2nd-Reticulum
3rd-Omasum
4th-Abomasum
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4. The Digestive Tract
The solid part
The liquid part
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5. This is called ________________
1st Compartment: Rumen
In the rumen,
Feed is forced back into the mouth where they chew their cud 6-8 times a day
This is called ________________
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6. Together the & make up % of the stomach
Rumen & Reticulum
There is no division
Together the & make up % of the stomach

7. Reticulum Reticulum has Interacts with .
. Hence its nickname the “______________.”
Interacts with .
Also prevents foreign materials from entering the other compartments

8. Makes up 8% of the stomach
Omasum
Omasum has many folds, often referred to as ______________.
Aids in
Squeezes
Makes up 8% of the stomach
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9. Makes up 7% of the stomach
Abomasum
Abomasum:
Corresponds with the stomach of
animals.
Feed is mixed with gastric juice
Makes up 7% of the stomach

10. Small & Large Intestines
From the abomasum, the feed enters the
where nutrients are absorbed in the blood system.
From the small intestine, the food passes into the where the water is removed and the feed is prepared for excretion.

11. Review
Animals that have ruminant digestive systems eat forage rapidly and later regurgitate the feed, known as the _________.
The regurgitated food is chewed thoroughly, swallowed and then more feed is regurgitated. This process is continued until all the feed is ________________________.
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