Question

Identify the best combination of feed ingredients for the production of cost-effective diets for farming of India major carps in semi-intensive pond based aquaculture

• A. Fish meal, ground nut cake, tapioca flour, rice bran, vitamin and mineral mix, cod liver oil
• B. Soybean cake, Tapioca flour, rice bran, vitamin and mineral mix, sardine oil
• C. Fish meal, soybean cake, ground nut cake, rice flour, vitamin and mineral mix, ground nut oil
• D. Groundnut cake, soybean oil, fish meal, wheat bran and vitamin and mineral mix

Hint:

Practical Carp Feed Formulation: Fish meal (animal protein) + Groundnut cake (plant protein) + Rice bran (energy) + Tapioca (binder) + Cod liver oil (HUFA) + Vitamin-mineral mix.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Aquafeed formulation for semi-intensive Indian Major Carp culture: balancing plant protein meals (GNC), animal protein sources (fish meal), cereal energy binders (rice bran, tapioca flour), essential fatty acids (fish oil), and premixes.

Step 2: Detailed Explanation:
In freshwater fish nutrition and formulated aquafeed manufacturing for Indian Major Carps (Catla, Rohu, Mrigal):
- A balanced, nutritionally complete, and cost-effective practical grow-out diet ($28 - 32\%$ crude protein) combines:
1. Protein Sources: High-quality Fish meal (essential amino acids, methionine/lysine) combined with cost-effective plant protein Groundnut Cake (GNC).
2. Energy & Binders: De-oiled Rice Bran (energy, B-vitamins) and Tapioca Flour (starch binder providing pellet water stability).
3. Lipids & Micronutrients: Cod Liver Oil (supplying essential $n-3$ long-chain HUFA: EPA/DHA) and a complete Vitamin and Mineral Premix.
- This comprehensive combination represents the standard reference formulation in semi-intensive carp aquaculture.

Step 3: Final Answer:
Therefore, the best balanced combination is Fish meal, ground nut cake, tapioca flour, rice bran, vitamin and mineral mix, cod liver oil, corresponding to option (A).