If stressed, their skin can become quite blue because of lack of oxygen. Severe weight loss is often seen. Treatment and Prevention Aspergillosis can be prevented by carefully managing the bird's environment. Manure should not be allowed to accumulate, but should be regularly removed. Moldy bedding or feed must not be used for birds.
Coarse bedding is preferable to fine as it produces less dust.
Most importantly, feed or bedding that becomes wet should be removed immediately. Good ventilation, cleanliness, and stress prevention are helpful to prevent this and many other bird diseases. Antifungal drugs are occasionally used on very valuable animals. These medications must be given individually, and treatment is often prolonged and expensive. Syngamus trachea Gapeworms are long, bright red worms that attach themselves to the inside lining of the trachea.