Authors : Syed Habib-ur-Rehman , Sirzamin , Hamayun Khan , Saleem Khan , Nazir Ahmad and Wali Mohammad Bhatti
Abstract: This research work was conducted to study the incidence and gross pathological alterations produced by Salmonellosis in and around surrounding areas of Hyderabad city. For this purpose, all the affected organs were collected and brought to the Laboratory of Department of Pathology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tando Jam, for detailed study. The total number of birds in different farms were 14900 in which the sick birds was 965 (6.47%) the negative birds 765(5.13%) and positive birds was 200 (1.34%) in al affected organs, the rate of incidence of Salmonella pullorum was recorded 63.5%. The organs which showed positive reactoin towards the Salmonella pullorum infection were 50 in ovaries (25%), Livers 48 (24%), Spleens 18 (9%) and Kidneys 11 (5.5%). The gross pathological changes observed in ovaries due to Salmonella pullorum were discoloration 64.9%, enlargement 51.9%, mottling 58.4%, haemorrhages 45.5%, nodulating abscesses 25.9% and necrotic foci 20.7%. The lesion were most frequently found in the chronicarrier hens. Liver showed discoloration 75.3%, enlargement 36.2%, mottling 24.6%, heamorrhages 4.4% nodulating abscesses 11.5% and nectrotic foci 14.4%. In similar way, the frequency of gross pathological alteration, which were observed in spleen comprised of enlargement 30.7%, mottling 38.4% Hemorrhages 15.3% nodulating absecesses 20.5% and nectrotic foci 25.3% in affected birds. The affected kidneys showed anaemic discolouration 33.3%, enlargement 40.0% mottling 26.6% haemorrhages 33.3% nodulating abscesses 13.3% and necrotic foci 40.0%.
Syed Habib-ur-Rehman , Sirzamin , Hamayun Khan , Saleem Khan , Nazir Ahmad and Wali Mohammad Bhatti , 2003. Incidence and Gross Pathology of Salmonellosis in Chicken in Hyderabad. Journal of Animal and Veterinary Advances, 2: 581-584.