Tissue changes in dogs fed a zinc-deficient ration

Area of Science:

• Veterinary Dermatology
• Nutritional Science

Background:

• Zinc is an essential trace element crucial for skin health and immune function in animals.
• Dietary deficiencies, particularly in young animals, can lead to significant dermatological issues.

Purpose of the Study:

• To investigate the dermatological effects of a zinc-deficient diet in young puppies.
• To determine the reversibility of diet-induced skin lesions with zinc supplementation.

Main Methods:

• Six-week-old puppies were fed a corn-soy based diet lacking sufficient zinc.
• Clinical signs and skin lesions were monitored over the study period.
• Affected puppies received dietary zinc supplementation to assess recovery.

Main Results:

• Puppies developed characteristic skin lesions including parakeratosis, hyperkeratosis, erosions, ulcerations, alopecia, and inflammation.
• Lesions were most severe in areas prone to friction, stretching, and external contact.
• Dietary zinc supplementation led to complete remission of external skin lesions within six weeks.

Conclusions:

• A corn-soy based zinc-deficient diet induces significant and reversible skin lesions in puppies.
• Zinc is vital for maintaining epithelial integrity and skin health in young dogs.
• Prompt zinc supplementation can effectively resolve diet-induced dermatological problems.