Topics:
Animal Nutrition, Animal Refresher
Microorganism that Controls Rumen Microbial Population
The microbial population in the rumen is controlled by which microorganism?
- Bacteria
- Fungi
- Bacteriophage
- Protozoa — Correct Answer
Explanation:
Correct Answer: Protozoa
Protozoa control the rumen microbial population by predating on bacteria (primary population regulators). Despite bacteria multiplying rapidly, protozoa keep their numbers in check.
Mechanism
- Protozoa engulf and digest bacterial cells
- In defaunated rumen (protozoa removed): bacterial count increases significantly
- Improved microbial protein flow to duodenum in defaunated animals
Bacteriophage also lyse bacteria but are secondary controllers; protozoa are the primary regulators.
📚 About this Topic — Animal Nutrition
This multiple choice question is from Animal Nutrition, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Nutrition to strengthen your preparation.
