Part of Lesson Plan: Processes of the Rumen

Activity Overview / Details

1-Check for understanding of lab procedure and use of materials

2-Go outside to where lamb stomach is layed out on large trash bag to catch any contents

3-Show the students the 4 individual external compartments of the stomach, check for understanding, ask names of compartments.

4-Discuss the % make up of each compartment of the whole (Rumen/Reticulum=85%, Omasum= 8%, Abomasum= 7%)

.Check for understanding, compare size of a trash can (rumen) versus a soda can (Omasum or Abomasum).

5-Discuss bacterial action, rumination and time spent ruminating (5-7 hours). Check for understanding. Questions on "good" bacteria, steps in rumination.