Candida (Trush)
Thrush is a common acute or chronic fungus infection especially of   the digestive tract. Other names for this disease are mycosis, soor,   muguet, sour crop.
            
          
Pathogen/Cause:
    Candida albicans, a yeastlike organism.
    
    
Symptoms of the disease:
            Poor growth of young pigeons, accumulation in the crop; whitish fungal growths in the throat.
          Recognition of the disease:
    Microscopic examination of the fungal growths in the throat.
          Treatment:
    Separation of affected birds. Administration of Nystatin (veterinary) and high levels of Vitamin A.
          Prevention:
    Improving the environment.