Topics:
Animal Nutrition, Animal Refresher
Urinary Energy Loss in Pigs
Urinary energy loss in case of pig is ______ % of GE intake.
- 2-3 — Correct Answer
- 4-5
- 7-9
- 10-12
Explanation:
Correct Answer: 2–3%
Pigs are monogastric animals with relatively simple nitrogen metabolism and no rumen fermentation. Their urinary energy loss is only 2–3% of GEi — lower than ruminants because they produce less urea.
Urinary Energy Loss — Comparison
| Species | Urinary Energy Loss (%GEi) | Reason |
|---|---|---|
| Ruminants (cattle) | 4–5% | High microbial protein turnover → more urea |
| Pig | 2–3% | Lower nitrogen turnover; no rumen fermentation |
Energy Loss Summary for Pig
- Faecal energy: 20% of GEi
- Urinary energy: 2–3% of GEi
- Methane: negligible (no rumen)
- Therefore pigs have the highest net energy efficiency of common farm animals
Why Other Options Are Wrong
- 4–5% → correct for ruminants; overestimates pig's urinary loss
- 7–9% → methane loss figure for ruminants; not urinary energy for pigs
- 10–12% → far too high; no species loses this much urinary energy
📚 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.
