<abstract xmlns="http://www.w3.org/1999/xhtml"><p> This study describes a concurrent occurrence of lower respiratory aspergillosis and pneumoconiosis in a turkey flock. From one flock of 1000 turkeys, 4 clinically affected turkeys were examined pathologically and microbiologically. Clinically affected turkeys showed anorexia, lethargy, drooping of the wing, vomiting, dyspnea and open-beak breathing, or sudden dead. Gross lesions were observed in the air sacs and lungs which presented white to yellowish granulomas of varying size. Microscopic there was multifocal granulomatous airsacculitis and pneumonia. At the center of the granulomas, fungal hyphae were clearly highlighted in the lungs and air sacs by Gomori methenamie silver (GMS) staining. In the microbiological cultivation of the affected lungs and air sacs, Aspergillus fumigatus was isolated on Sabouraud dextrose agar. Furthermore, dark black dust accumulations were present in the cytoplasm of macrophages or interstitial tissue in the lungs and air sacs. There were also fibrosis and lymphohistiocytic cell infiltrations around the particles. Overall, this study could implicated that pneumoconiosis might be a predisposing factor in the development of respiratory aspergillosis in turkeys.</p></abstract>

This study describes a concurrent occurrence of lower respiratory aspergillosis and pneumoconiosis in a turkey flock. From one flock of 1000 turkeys, 4 clinically affected turkeys were examined pathologically and microbiologically. Clinically affected turkeys showed anorexia, lethargy, drooping of the wing, vomiting, dyspnea and open-beak breathing, or sudden dead. Gross lesions were observed in the air sacs and lungs which presented white to yellowish granulomas of varying size. Microscopic there was multifocal granulomatous airsacculitis and pneumonia. At the center of the granulomas, fungal hyphae were clearly highlighted in the lungs and air sacs by Gomori methenamie silver (GMS) staining. In the microbiological cultivation of the affected lungs and air sacs, Aspergillus fumigatus was isolated on Sabouraud dextrose agar. Furthermore, dark black dust accumulations were present in the cytoplasm of macrophages or interstitial tissue in the lungs and air sacs. There were also fibrosis and lymphohistiocytic cell infiltrations around the particles. Overall, this study could implicated that pneumoconiosis might be a predisposing factor in the development of respiratory aspergillosis in turkeys.

Concurrent Occurrence of Lower Respiratory Aspergillosis and Pneumoconiosis in a Turkey Flock

Acta Veterinaria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

This study describes a concurrent occurrence of lower respiratory aspergillosis and pneumoconiosis in a turkey flock. From one flock of 1000 turkeys, 4...

Concurrent Occurrence of Lower Respiratory Aspergillosis and Pneumoconiosis in a Turkey Flock

Published Online: Dec 29, 2017

Page range: 562 - 571

Received: Apr 25, 2017

Accepted: Oct 31, 2017

DOI: https://doi.org/10.1515/acve-2017-0044

Keywords
Aspergillosis, pneumoconiosis, turkey, respiratory system, pathology

© by Necati Timurkaan

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Concurrent Occurrence of Lower Respiratory Aspergillosis and Pneumoconiosis in a Turkey Flock

Published Online: Dec 29, 2017

Page range: 562 - 571

Received: Apr 25, 2017

Accepted: Oct 31, 2017

DOI: https://doi.org/10.1515/acve-2017-0044

KeywordsAspergillosis, pneumoconiosis, turkey, respiratory system, pathology

© by Necati Timurkaan

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Aspergillosis, pneumoconiosis, turkey, respiratory system, pathology