Black tongue, or canine pellagra, is associated with niacin deficiency. Dogs affected by inadequate niacin may develop oral inflammation, ulceration, weakness, digestive disturbances, and characteristic darkening of the tongue. Providing an appropriate balanced diet containing adequate niacin helps prevent this nutritional disorder.
Black tongue in dogs is caused due to deficiency of:
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Question context
This question is part of 🧬 Biochemistry within the broader 🧬 Medical Science subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.