Topics: Animal Nutrition, Animal Refresher

Anti-Vitamins Matched with Their Sources

Match the anti-vitamins with their sources:

Column A	Column B
1. Anti-Vitamin A	(a) Avidin
2. Anti-Vitamin K	(b) Raw soybean
3. Anti-Vitamin B1	(c) Dicoumarol
4. Anti-Biotin	(d) Raw kidney bean
5. Anti-Vitamin E	(e) Raw fish

1-b, 2-c, 3-e, 4-a, 5-d
1-b, 2-c, 3-a, 4-e, 5-d
1-d, 2-c, 3-e, 4-a, 5-b
1-a, 2-b, 3-c, 4-d, 5-e

Anti-Vitamins Matched with Their Sources

Match the anti-vitamins with their sources:

Column A	Column B
1. Anti-Vitamin A	(a) Avidin
2. Anti-Vitamin K	(b) Raw soybean
3. Anti-Vitamin B1	(c) Dicoumarol
4. Anti-Biotin	(d) Raw kidney bean
5. Anti-Vitamin E	(e) Raw fish

Options

1-b, 2-c, 3-e, 4-a, 5-d ✓
1-b, 2-c, 3-a, 4-e, 5-d
1-d, 2-c, 3-e, 4-a, 5-b
1-a, 2-b, 3-c, 4-d, 5-e

Correct Answer: A

Explanation in English

Correct Answer: 1-b, 2-c, 3-e, 4-a, 5-d

Anti-nutritional factors that antagonise specific vitamins:

Anti-Vitamin A → Raw soybean (b): Contains anti-vitamin A factors (lipoxidase enzyme destroys carotene/β-carotene) and also trypsin inhibitor, anti-vitamin D.
Anti-Vitamin K → Dicoumarol (c): Found in sweet clover (Melilotus alba). Dicoumarol inhibits Vitamin K-dependent clotting factors (II, VII, IX, X). Warfarin (rat poison) has the same mechanism.
Anti-Vitamin B1 (Thiaminase) → Raw fish (e): Thiaminase enzyme in raw fish and bracken fern destroys thiamine. Causes 'Chastek paralysis' in foxes and mink fed raw fish.
Anti-Biotin → Avidin (a): Found in raw egg white. Avidin binds biotin irreversibly, preventing absorption — causes 'Egg white injury'. Cooking denatures avidin.
Anti-Vitamin E → Raw kidney bean (d): Raw kidney beans contain anti-vitamin E factors.

📚 About this Topic — Animal Nutrition

This multiple choice question is from Animal Nutrition, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Nutrition to strengthen your preparation.

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