Vol. 9, Issue 1, Part O (2024)

Author(s): Mehreen Yaqub, Shayaib Ahmad Kamil, Mehvish Rafiq, Showkat Ahmad Shah, Majid Shafi Kawoosa and Akeel Bashir Beigh

Abstract: The present work was conducted for the assessment of occurrence of infectious bursal disease in chicken of various poultry farms operating in district Srinagar, Ganderbal, Budgam and Shopain of Kashmir valley. Samples comprised of dead chicken from various poultry farms of Kashmir valley as well as that were brought to Division of Veterinary Pathology, FVSc & A.H, SKUAST-K Shuhama, for postmortem examination. The outbreaks suspected for IBD in broiler chicken were identified based on the history, clinical signs and lesions following a thorough post mortem examination. A total of 32 outbreaks were recorded during the study period from four districts namely Srinagar (8), Ganderbal (15), Budgam (7) and Shopain (2). The highest mortality was recorded in district Ganderbal (75.0%), followed by Srinagar (42.4%), Budgam (41.4%) and Shopain (33.8%). Age-wise proportionate mortality due to infectious bursal disease was 19.2%, 53.3%, 22.0, 10.3%, in age group of 15-20 days, 21-30 days, 31-40 days and in case of layers respectively. The highest mortality associated with infectious bursal disease was recorded in the age group of 21-30 days. The overall mortality in the flock was 34.7% and among the affected flock mortality ranged between 10.3-53.3 % respectively.