Transcript Ruminant Digestion Note Guide

Ruminant Digestive
System
Student Note
Outline
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Ruminants

Ruminant are animals that have four complex stomach
structures.

This allows them to ___________, which monogastrics
___________digest

A few animals with ruminant digestive systems are
__________, _____________, and ____________.

_________________ are usually ruminant animals.

Ruminants eat quickly at first, and break it down later
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The Ruminant Stomach
Four Compartments:
1st-Rumen
2nd-Reticulum
rd
3 -Omasum
th
4 -Abomasum
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The Digestive Tract
 The
solid part of a ruminants food goes to
the ______________ after being swallowed
 The
liquid part of the food goes straight
to the _____________
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1st Compartment: Rumen
 In
the rumen, food
is broken down by
______________
 Feed
is forced
back into the
mouth where they
chew their cud 6-8
times a day
 This
is called
________________
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Rumen & Reticulum
 There
is no division between the
rumen & reticulum
 Together the rumen & reticulum
make up _____% of the stomach
Reticulum
 Reticulum
has a lining with small
compartments similar to a honeycomb.
Hence its nickname the “______________.”
 Interacts
with the rumen in initiating
mixing activity and provides additional
storage for fermentation.
 Also prevents foreign materials from
entering the other compartments
Omasum
 Omasum
has many folds, often referred
to as ______________.
Makes
up 8% of
the
stomach
 Aids
in the grinding action of the food
 Squeezes out ____________
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Abomasum
 Abomasum:
The ____________stomach
 Corresponds
with the stomach of
________________________animals.
 Feed
is mixed with gastric juice
Makes
up 7% of
the
stomach
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.
Review
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
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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