DIGESTIVE SYSTEMDIGESTIVE SYSTEMRUMINANTRUMINANT

What is ruminant?What is ruminant?Ruminant is an animal that Ruminant is an animal that has several has several stomachsstomachs and eat grass. and eat grass.This animal is a This animal is a herbivore.herbivore.

What are the example of a What are the example of a ruminant?ruminant?

A cowA cow

Ruminant can digest the cellulose. WHY??Ruminant can digest the cellulose. WHY??

***in their stomach (1***in their stomach (1stst and 2 and 2ndnd chamber) have a large chamber) have a large

communities of bacteria and protozoa which will communities of bacteria and protozoa which will produce the produce the

cellulase.cellulase.

***this enzyme can digest cellulose.***this enzyme can digest cellulose.

1. rumen

4. abomasum

3. omasum

2. reticulum

The stomach of the ruminant

1.1. Chewed food is passed to the Chewed food is passed to the rumenrumen. The . The cellulasecellulase that that produce by the bacteria and the protozoa will digest produce by the bacteria and the protozoa will digest cellulose.cellulose.

2.2. Then, the food will enter Then, the food will enter reticulumreticulum. The cellulose will go . The cellulose will go further hydrolisis. The food now is called as further hydrolisis. The food now is called as cudcud. The cud is . The cud is regurgitated, chewed again and reswallowed.regurgitated, chewed again and reswallowed.

3.3. The cud is reswallowed and moved to the The cud is reswallowed and moved to the omasumomasum. Here, . Here, the food will be breakdown into small particles by the food will be breakdown into small particles by peristalsis. The water also removed from the cud.peristalsis. The water also removed from the cud.

4.4. Finally, the cud is move to the 4Finally, the cud is move to the 4thth chamber – chamber – abomasumabomasum. . Gastric juice that contain digestive enzyme will digest all Gastric juice that contain digestive enzyme will digest all the food to the simplest particles and be absorb.the food to the simplest particles and be absorb.

rumen

abomasum

omasum

reticulum