Deficiency of vitamin D in growing poultry most directly predisposes the birds to which condition?
Correct answer: D. Rickets
- A. Encephalomalacia
- B. Night blindness
- C. Scurvy
- D. Rickets
Explanation
Vitamin D is required for proper calcium and phosphorus metabolism, so its deficiency causes poor bone mineralization and rickets. Night blindness is associated with vitamin A deficiency, while scurvy involves vitamin C deficiency.
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