Topics:
Animal Nutrition, Animal Refresher
Term for Selective Removal of Rumen Protozoa
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Question (English)
Selective removal of protozoa from the ruminal ecosystem is known as:
- Belching
- Burping
- Defaunation ✓ Correct
- Rumination
Explanation:
Correct Answer: Defaunation
Defaunation is the selective removal of protozoa from the rumen. It is achieved without significantly harming the bacterial population.
Chemical Agents for Defaunation
- Copper sulphate (CuSO₄)
- Sodium lauryl sulphate
Why Defaunate?
Protozoa predate on bacteria, reducing net microbial protein flow to the duodenum. Defaunated animals show increased bacterial protein synthesis and improved nitrogen utilisation. Protozoa are 'mini-ruminants' (Von Soest) — 10⁶/ml of rumen liquor.
📚 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.
