Zinc-responsive dermatosis in a red wolf (canis rufus)

Area of Science:

• Veterinary Dermatology
• Canid Nutrition
• Comparative Pathology

Background:

• Red wolves (Canis rufus) are an endangered species requiring specialized care.
• Nutritional deficiencies can manifest as dermatological conditions in canids.
• Hyperkeratosis and pyoderma are common clinical signs in various animal species.

Observation:

• An 18-month-old male red wolf presented with severe footpad hyperkeratosis, suppurative paronychia, distal limb pyoderma, and peripheral lymphadenopathy.
• The diet consisted of commercial dog foods and a calcium-rich mineral supplement.
• Bacterial cultures revealed opportunistic pathogens in draining tracts.

Findings:

• Histopathology confirmed zinc deficiency as the underlying cause.
• Treatment involved amoxicillin for infection and zinc sulfate supplementation.
• Discontinuation of calcium supplementation was also part of the medical management.

Implications:

• This case highlights zinc deficiency as a treatable cause of severe dermatological signs in red wolves.
• Proper nutritional assessment and supplementation are crucial for managing health in endangered canids.
• The successful resolution underscores the link between diet and skin health in veterinary medicine.