Question

Chose the correct statements
A. Groundnut cake is usually used as lipid source
B. Groundnut cake is used as protein source
C. Rice bran is used as carbohydrate source
D. Rice bran is used as protein source
E. Wheat flour is used as a binder
Choose the correct answer from the options given below:

• A. A, B and E only
• B. B, D and E only
• C. B, C and E only
• D. A, D and E only

Hint:

Standard Indian Carp Feed (Traditional):
1. Groundnut Cake: Protein Source (~40% CP).
2. Rice Bran: Carbohydrate/Energy Source (~45% NFE).
3. Wheat Flour/Maida: Binder for water stability.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
The question involves identifying the primary nutritional or functional roles of common feed ingredients used in aquaculture, specifically in Indian major carp (IMC) farming.
Detailed Explanation:

• Groundnut Cake (GNC): GNC is a byproduct obtained after the extraction of oil from groundnuts. It is a highly valued plant protein source in fish feeds, typically containing 40% to 45% crude protein. While it contains some residual lipids, its primary role is as a protein supplement (Statement B). Therefore, Statement A is incorrect.

• Rice Bran: Rice bran is the byproduct of the rice milling process. It is rich in carbohydrates (nitrogen-free extract) and is used as the primary energy source in traditional mash feeds for carps in India. It typically contains around 10% to 12% protein, which is insufficient for it to be considered a primary protein source (Statement C). Therefore, Statement D is incorrect.

• Wheat Flour (Maida): Wheat flour contains gluten, which acts as an excellent adhesive or binding agent when mixed with water and processed. In pelletized fish feed, it helps maintain the physical integrity and water stability of the feed (Statement E).

• Conclusion: Statements B, C, and E are functionally correct based on standard fish nutrition practices.

Step 3: Final Answer:
The correct answer is (C) B, C and E only.