Aspergillus fumigatus as a cause of mycotic tracheitis in a chicken
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M Pal1, S Prajapati, R M Gangopadhyay
1Department of Veterinary Public Health, College of Veterinary Science, Gujarat Agricultural University, India.
Abstract:
An unusual case of mycotic tracheitis in a young chick caused by Aspergillus fumigatus was recorded from Anand, India, during 1987. The pathogen was demonstrated in the tracheal exudate by potassium hydroxide technique and also recovered from the trachea on Sabouraud dextrose agar at 37 degrees C. The characteristic hyphae of Aspergillus spp. were demonstrated in tracheal mucosa in histopathological sections stained by periodic acid Schiff method. Interestingly, the lesions were confined only to the trachea. Environmental investigations established the source of infection in the farm where the litter was highly contaminated with A. fumigatus.
Insights
A young chick developed mycotic tracheitis due to Aspergillus fumigatus. The infection, originating from contaminated litter, was confined to the trachea, as confirmed by laboratory analysis.
Area of Science:
- Veterinary Mycology
- Avian Pathology
Background:
- Mycotic tracheitis is a fungal infection affecting the trachea.
- Aspergillus fumigatus is a common mold found in the environment.
Observation:
- An unusual case of mycotic tracheitis was diagnosed in a young chick in Anand, India.
- The infection was caused by Aspergillus fumigatus, with lesions localized to the trachea.
Findings:
- Aspergillus fumigatus was identified in tracheal exudate using potassium hydroxide (KOH) technique.
- The fungus was cultured from the trachea on Sabouraud dextrose agar at 37°C.
- Histopathological examination revealed characteristic Aspergillus hyphae in the tracheal mucosa.
Implications:
- Contaminated farm litter can be a significant source of Aspergillus fumigatus infection in poultry.
- Early diagnosis and environmental control are crucial for managing mycotic tracheitis in chicks.