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Digestion in Ruminants & Rodents
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Digestion in Ruminants & Rodents

Digestion in Ruminants & Rodents

Slide 2

Ruminants

Ruminants

Herbivore mammals

Eg. Cow, goat, giraffe, deer

Feed on plant - cellulose

Slide 3

Ruminants

Slide 4

Rodents

Rodents

Rabbits and rats family

Slide 5

Digestive System of Ruminants

Digestive System of Ruminants

Feed on plant cellulose

Need cellulase to digest it

But ruminants do not produce cellulase

However their digestive system are specially adapted to carry out cellulose digestion

Slide 6

Ruminants

Ruminants

Has a stomach with 4 chambers:

1. rumen

2. reticulum

3. omasum

4. abomasum

Carry out rumination process of regurgitating food and rechewing it

Slide 7

Digestive System of Ruminants

Slide 8

Digestive System of Ruminants

Slide 9

Ruminants

Ruminants

the saliva of a cow contains no salivary amylase

To digest the plant material, herbivores need to depend on the cellulase-secreting microorganism in its digestive system

Slide 10

Ruminants

Ruminants

Rumen

- first & largest compartment

- contain bacteria that produced cellulase for the cellulose digestion

- function as the fermentation chamber

Slide 11

Digestive System of Ruminants

Slide 12

Digestive System of Ruminants

Slide 13

Organisms in rumen

Organisms in rumen

Slide 14

Ruminants

Ruminants

Reticulum

- also contains bacteria for digestion

- content of reticulum called cud

- regurgitation occurs

- has a honeycomb wall

Slide 15

Organisms in rumen

Slide 16

Organisms in rumen

Slide 17

Ruminants

Ruminants

Omasum

- reswallowed cud will be sent here

- large particle are broken down by peristalsis

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