Topics:
Animal Nutrition, Animal Refresher
Balance Study for Energy Estimation
Balance study used to determine energy content of a feed:
- Carbon balance
- Nitrogen balance
- C-N balance — Correct Answer
- None
Explanation:
Correct Answer: C-N balance
The Carbon-Nitrogen (C-N) balance study is the balance technique used to determine energy content of feed. It involves measuring carbon intake vs carbon excreted in faeces, urine, and expired CO₂ to calculate net energy retention.
Types of Balance Studies
| Balance Type | Measures | Used For |
|---|---|---|
| C-N Balance | Carbon intake vs output | Energy estimation |
| N Balance | Nitrogen intake vs output | Protein quality estimation |
| Carbon Balance alone | Carbon only | Not standard — C-N is preferred |
C-N Balance Procedure
- Feed carbon and nitrogen intake is measured precisely.
- Outputs (faeces, urine, expired gases) are collected and analyzed for C and N.
- Retained carbon reflects energy stored in the body as fat or protein.
- Combined with N balance, net protein and energy utilization can be calculated.
Why Other Options Are Wrong
- Carbon balance alone → incomplete; the N component is also required for full energy partitioning.
- Nitrogen balance → used for protein quality, not energy determination.
- None → C-N balance is the specific correct answer.
📚 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.
