Question

Match List-I with List-II:
{|l|l|} List-I (Classification) & List-II (Animal feed)
(A) Wheat straw & (I) Productive type roughage
(B) Maize grains & (II) Non maintenance type roughage
(C) Legume fodder & (III) Energy rich concentrate feed
(D) Soybean meal & (IV) Protein rich concentrate feed

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (IV), (B) - (I), (C) - (III), (D) - (II)
• (A) - (III), (B) - (IV), (C) - (II), (D) - (I)
• (A) - (II), (B) - (III), (C) - (I), (D) - (IV)

Hint:

Start with the absolute matches: Soybean meal is universally known as the gold standard protein source (Protein-rich concentrate - IV) and Maize is the primary energy grain (Energy-rich concentrate - III).
Matching B to III and D to IV immediately isolates Option (D).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Animal feeds are broadly classified into roughages (high crude fiber, low TDN) and concentrates (low crude fiber, high TDN) based on their fiber and nutrient densities, which dictate their feeding functions.

Step 3: Detailed Explanation:
Let us match the feed items:
1. Wheat straw (A): Highly fibrous, poorly digestible crop residue that does not provide enough energy or protein to meet even basic maintenance requirements. Hence, it is classified as a Non-maintenance type roughage (II).
2. Maize grains (B): High starch content, low fiber, highly digestible energy source. Classified as an Energy-rich concentrate feed (III).
3. Legume fodder (C): Nutritious green forage high in protein and calcium, supporting milk production or growth. Classified as a Productive type roughage (I).
4. Soybean meal (D): High-quality protein supplement derived after oil extraction. Classified as a Protein-rich concentrate feed (IV).
This yields the combination: (A) - (II), (B) - (III), (C) - (I), (D) - (IV).

Step 4: Final Answer
The correct option is (D).