Tuberculosis in geese (Anser anser) in Turkey

Area of Science:

• Veterinary Pathology
• Avian Medicine
• Microbiology

Background:

• Tuberculosis (TB) is a significant infectious disease affecting various animal species.
• Avian tuberculosis can impact poultry and wild birds, posing potential risks to animal health and ecosystems.
• Understanding TB in non-traditional hosts like geese is crucial for disease surveillance.

Observation:

• Seven geese from a veterinary faculty breeding unit presented with clinical signs suggestive of disease.
• Necropsy revealed characteristic nodular lesions in the liver, spleen, and lungs of affected geese.
• Histopathological examination showed granulomatous inflammation with caseous necrosis and acid-fast bacilli.

Findings:

• Acid-fast bacilli were identified using the Ziehl-Neelsen staining method in tissue samples.
• Mycobacterium species were successfully isolated and cultured on Lowenstein-Jensen media with glycerin.
• The findings confirm tuberculosis infection in the studied goose population.

Implications:

• This case highlights the susceptibility of geese to tuberculosis, contributing to the understanding of avian TB.
• Early detection and diagnosis are vital for managing TB outbreaks in captive bird populations.
• Further research into Mycobacterium strains affecting geese may inform broader wildlife disease management strategies.