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Steatitis and fat necrosis in captive alligators.
Journal of the American Veterinary Medical Association
|December 1, 1983
Summary
A diet of only fish for over 10 years caused steatitis and fat necrosis in American alligators (Alligator mississippiensis). This condition presented as firm masses in fat tissue, diagnosed histopathologically.
Area of Science:
- Veterinary Pathology
- Wildlife Health
- Reptilian Medicine
Background:
- Steatitis and fat necrosis are inflammatory conditions affecting adipose tissue.
- These conditions can be linked to dietary imbalances or nutritional deficiencies.
Purpose of the Study:
- To identify and characterize steatitis and fat necrosis in American alligators (Alligator mississippiensis).
- To investigate potential dietary causes for these conditions in captive alligators.
Main Methods:
- Necropsy and histopathologic examination of 123 American alligators.
- Analysis of dietary history, specifically a long-term fish-only diet.
Main Results:
- Firm, yellow-brown masses were observed in the fat tissue of affected alligators.
- Histopathology confirmed granulomatous steatitis with fat necrosis, characterized by multinucleated giant cells, ceroid, and inflammatory foci.
Conclusions:
- A prolonged diet consisting solely of fish can lead to steatitis and fat necrosis in American alligators.
- These conditions may not present with external clinical signs in affected animals prior to slaughter.