livestock_digestive by LTrunk3487

VIEWS: 350 PAGES: 24

									Livestock Digestive Systems

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.

What are some animals that have Rumens?







What do all of these animals have in common?
• They all
live off of grass, and other roughages.

Why can’t we live off of the same things cows eat?

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.

What are these four structures?

• 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

Rumen Feed Storage
Today’s Hay Yesterday’s Feed

Rumen (Punch)

• Collects objects that shouldn’t be in the
digestive system.
– Nails – Screws – Baling wire

• Magnets are placed into many dairy animals

Reticulum (Hardware Stomach or Tripe)

• Works to remove water from the food

• Absorbs fatty acids

Omasum (manyplies)

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

Abomasum (True Stomach)

Order that food moves.
• • • •
Rumen Reticulum Omasum Abomasum

Hint to remember Alphabetically back-words. Ru Re O A

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?

Nice Work! Now on to the assignment!

To top