A deficiency of vitamin A in poultry most commonly causes which general problem?
Correct answer: C. Poor epithelial integrity
- A. Nervous tremors from low vitamin E
- B. Rickets from poor calcium use
- C. Poor epithelial integrity
- D. Perosis from manganese deficiency
Explanation
Vitamin A is important for normal epithelial tissues, vision, immunity, and reproduction, so deficiency can produce poor epithelial condition and related lesions. Rickets is classically associated with vitamin D or mineral imbalance, while perosis is linked mainly with manganese deficiency.
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