Topics:
Animal Nutrition, Animal Refresher
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Question (English)
Urinary energy loss in pigs is approximately what percentage of gross energy (GE) intake?
- 2–3% of GEi ✓ Correct
- 4–5% of GEi
- 7–9% of GEi
- 10–12% of GEi
Explanation:
Correct Answer: 2–3% of GEi
Urinary energy loss in pigs is the lowest among commonly studied livestock — only 2–3% of GEi. Pigs excrete mainly urea (low energy content) and have efficient renal function.
Comparing Urinary Energy Losses
- Pig: 2–3% of GEi
- Cattle/Ruminants: 4–5% of GEi
Why Does Ruminants Have Higher Urinary Energy Loss?
Ruminants digest microbial nucleic acids from rumen microbes → produce purines → excreted as allantoin in urine. This adds to urinary energy loss over and above urea. Pigs do not have this source of purine excretion.
📚 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.
