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Livestock Digestive Systems

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Livestock Digestive Systems. Modified by Georgia Agricultural Education Curriculum Office ... Ruminants have to be able to eructate (belch) Some nutrients are absorbed ... – PowerPoint PPT presentation

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Title: Livestock Digestive Systems


1
Livestock Digestive Systems
  • Modified by Georgia Agricultural Education
    Curriculum Office
  • July 2002

2
Ruminant Digestive System
  • Objectives
  • Know the four parts of the ruminant stomach.
  • Know examples of animals that have a rumen.
  • Be able to describe the function of all four of
    the parts of the ruminant stomach.

3
What are some animals that have Rumens?
  • ?

4
Cattle
5
Sheep
6
Goats
7
Deer
8
Elk
9
What do all of these animals have in common?
  • They all live off of grass, and other roughages.

10
Why cant we live off of the same things cows eat?
  • CELLULOSE

LIGNIN
11
How can a Ruminant digest these things?
  • Through the process of rumination
  • Eating rapidly, regurgitating and masticating
    their feed. (Chewing their cud)
  • With specialized structures in their stomach
  • Ruminants have microorganisms living in them that
    break down cellulose for them and make those
    nutrients absorbable.

12
What are these four structures?
13
Rumen
  • Large fermentation vat
  • Microorganisms break down cellulose
  • Creates lost of gases (methane)
  • Ruminants have to be able to eructate (belch)
  • Some nutrients are absorbed
  • Roughages are reduced in size

14
Rumen Feed Storage
15
Rumen (Punch)
16
Reticulum
  • Collects objects that shouldnt be in the
    digestive system.
  • Nails
  • Screws
  • Baling wire
  • Magnets are placed into many dairy animals
    reticulums.

17
Reticulum (Hardware Stomach or Tripe)
18
Omasum
  • Works to remove water from the food
  • Absorbs fatty acids

19
Omasum (manyplies)
20
Abomasum
  • Glandular Stomach (like yours)
  • Secretes digestive juices.
  • Breaks down food stuff further for absorption.
  • Absorbs some nutrients.

21
Abomasum (True Stomach)
22
Order that food moves.
  • Rumen
  • Reticulum
  • Omasum
  • Abomasum
  • Hint to remember Alphabetically back-words.
  • Ru Re O A

23
Review
  • Give me an example of an animal that has a rumen?
  • Name the four compartments of the ruminant
    stomach?
  • What does a rumen help and animal break down that
    we cant?
  • What are the common names of the four parts of
    the ruminant stomach?

24
Nice Work!Now on to the assignment!
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