Aspergillosis in birds is a fungal respiratory infection caused by the fungus Aspergillus fumigatus. This microorganism is naturally present in the environment in small amounts, but it becomes dangerous when inhaled in large quantities—especially by birds with weakened immune systems. Malnutrition, chronic stress, or a poorly maintained habitat can increase the risk of infection.
How the infection spreads
Transmission occurs through inhalation of fungal spores suspended in the air. These spores thrive in humid, dusty, or moldy environments, and can accumulate in contaminated bedding, old feed, or poorly ventilated enclosures.
Clinical signs of aspergillosis
Common symptoms of aspergillosis in birds include:
- Open-mouth breathing with an extended neck
- Unusual posture (spread wings, tail pumping)
- Difficulty recovering after flight
- Appetite changes or food refusal
- Sudden silence, voice changes, or cessation of singing/talking
- Lethargy and weakness
These signs warrant prompt veterinary evaluation.
Diagnosing aspergillosis
A complete diagnosis often requires multiple tests:
- Bloodwork: can reveal infection, though less reliable in early stages
- X-rays: useful to detect lesions in the air sacs and lungs
- Endoscopy: the most accurate test, allowing visualization and removal of fungal granulomas
Endoscopy also enables direct antifungal application to affected areas via a tiny camera and specialized tools.
Treatment of aspergillosis in birds
Effective treatment usually involves:
- Endoscopic removal of granulomas with antifungal application
- Nebulization therapy: delivering antifungal medication through inhaled mist
Additionally, birds are prescribed oral antifungal medications for several months (sometimes up to six). Some birds show improvement after the first treatments, but consistent follow-up is essential for success.
Correcting underlying causes
To prevent recurrence, you must address contributing factors:
- Environmental quality: clean, dry, and well-ventilated housing
- Stress reduction: avoid loud noises, rough handling, or abrupt changes
- Proper nutrition: balanced diet tailored to the species
- Stable temperature: avoid cold drafts or sudden fluctuations
Concerned about your bird’s breathing?
If your bird shows respiratory symptoms or unusual behavior, contact us today. Early intervention greatly increases the chances of recovery and long-term health.
