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- Title
Identification, Isolation and Pathological Changes Associated with Natural Cases of Avian Colibacillosis in Assam.
- Authors
Tella, Udaya Sai Sitaram; Buragohain, Mridusmrita; Deka, Abhijit; Reddy, Sravan Kumar; Srikanth, Sreeramdas; Umar, Md.; Ahmed, Rofique.
- Abstract
The present study deals with the pathological changes associated with natural cases of avian colibacillosis in Assam for a period of one year (January to December 2022) at Department of veterinary Pathology of the College in Khanapara, Assam. Among the 1,449 birds presented for the post-mortem throughout the year from both commercial layer and broiler flock, mortality was 6.48% ( 94/1449) due to avian colibacillosis. The incidence of colibacillosis was recorded higher in the months of July (40%) and August (27%), and the least in April (4.2%). Molecular confirmation of the isolates was done using 16S rRNA. Gross lesions mostly included deposition of fibrinous exudate on the pericardial surface and pericardial thickening associated with pericarditis, apart from lesions in liver and kidneys. Histopathologically, heart showed heavy infiltration of mononuclear phagocytic cells in myocardial fibres resulting in severe myocarditis and in the epicardium, fibrin deposition was present mixed with infiltrating cells.
- Subjects
ASSAM (India); ESCHERICHIA coli diseases; PATHOLOGICAL physiology; PERICARDITIS; VETERINARY pathology; PERICARDIUM; VETERINARY colleges
- Publication
Indian Journal of Veterinary Sciences & Biotechnology, 2024, Vol 20, Issue 3, p168
- ISSN
2394-0247
- Publication type
Article