Topics:
Animal Nutrition, Animal Refresher
Incorrect Statement About Minerals and Vitamins
Which of the following statements is NOT true?
(a) Copper and molybdenum act as antagonists
(b) Vitamin E and selenium act synergistically
(c) Alkali disease is caused by deficiency of selenium
(d) Teartness is caused by toxicity of molybdenum
- (a) — Cu and Mo are not antagonists
- (b) — Vit E and Se do not act synergistically
- (d) — Teartness is not caused by Mo toxicity
- (c) — Alkali disease is caused by Se TOXICITY, not deficiency — Correct Answer
Explanation:
Correct Answer: (c) is FALSE
Alkali disease is caused by selenium TOXICITY (chronic poisoning), NOT deficiency.
Correct Facts
- (a) TRUE: Cu and Mo are antagonists — high Mo forms thiomolybdate complex, reducing Cu absorption. This causes 'secondary copper deficiency' (Teartness).
- (b) TRUE: Vitamin E and Se act synergistically — both protect against lipid peroxidation by different mechanisms.
- (d) TRUE: Teartness (Peat scour) = Mo toxicity in cattle — liquid diarrhoea with gas bubbles on Mo-rich pastures.
Selenium Diseases
- Toxicity: Blind staggers (acute), Alkali disease (chronic), Degnala disease (chronic)
- Deficiency: White muscle disease, Exudative diathesis, Ill thrift
📚 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.
