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Livestock Digestive Systems

Livestock Digestive Systems. Modified by Georgia Agricultural Education Curriculum Office July 2002. Ruminant Digestive System. Objectives: Know the four parts of the ruminant stomach. Know examples of animals that have a rumen.

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Livestock Digestive Systems

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  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 can’t 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. Gas Today’s Hay Yesterday’s Feed Rumen Feed Storage

  15. Rumen (Punch)

  16. Reticulum • Collects objects that shouldn’t 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 can’t? 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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