Question

Which is the recommended protein level for carp grow-out feed?

• A. 15–20%
• B. 20–25%
• C. 30–35%
• D. 40–45%

Hint:

Grow-out carp → 20–25% protein ideal.

Answer 1

The Correct Option is B

Key Concept: Fish protein requirements scale down as they move from fry to grow-out stage.

Why it's correct: Carp grow-out diets need a moderate 20–25% crude protein — enough for steady growth without the added cost of excess protein.

Why others fail: 15–20% is too low for healthy growth, while 30–45% ranges match higher-protein needs of carnivorous species or fry, not adult grow-out carp.