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High PER in fish fed with higher carbohydrate is due to
EXPLANATION
Carbohydrate Metabolism, Dietary Utilization
- High PER from Elevated Dietary Carbohydrates:
- Protein Efficiency Ratio (PER) is calculated as:
- When fish are fed diets containing high digestible carbohydrates, the carbohydrates exert a protein-sparing effect for basal energy.
- However, excess ingested glucose is channeled into de novo lipogenesis, accumulating as excessive visceral and carcass fat deposition. This artificially increases gross weight gain and inflates the apparent PER.
- Correct Option: Option 3 (High fat deposition).
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