Question

4 what is the primary function of the abomasum in ruminants? a microbial fermentation b water absorption c chemical digestion using enzymes d cud regurgitation

Explanation:

• Option A: Microbial fermentation occurs in the rumen, not the abomasum.
• Option B: Water absorption is mainly done by the large intestine and to some extent the omasum, not the abomasum.
• Option C: The abomasum is the "true stomach" of ruminants, and it functions similarly to the stomach of non - ruminants, performing chemical digestion using enzymes (like pepsin, hydrochloric acid - related digestion).
• Option D: Cud regurgitation is related to the rumination process involving the reticulum and rumen, not the abomasum.

Answer:

C. Chemical digestion using enzymes