PATHOLOGICAL STUDIES ON GANGRENOUS DERMATITIS IN POULTRY
Loading...
Date
1992
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
AAU, Anand
Abstract
Etiopathological studies on natural outbreaks of Gangrenous dermatitis (GD) were carried out in 15 flocks at 12 farms with a total population of 52,975 birds during the period of October, 1989 to September, 1991. The age at which outbreaks appeared, system of management, season, clinical signs and mortality rate were recorded. A total of 234 post-mortems were carried out and samples were processed for bacterialisolation, drug sensitivity test and histopathological studies. The S. aureus culture isolated from GD cases were phage typed by both bovine and human sets of phages. One hundred and five sera sample and 73 bursal samples were analysed by AGPT to detect presence of Infectious bursal disease (IBD) antibodies and antigen respectively . Blood samples were analysed for Hb, PCV and RBC count from affected flocks to rule out the possibilities of chicken anaemia agent (CAA). The outbreaks of GB appeared in the cage as well as battery birds in the age group of 8-11 weeks during the months of April to August. Mortality ranged from 0.85 to 10.61 per cent with an average mortality of 4,24 per cent. The clinical symptoms recorded were sudden onset of depression, reduce feed intake, dullness, ruffled feather, haemorrhagic dermatitis and death.
Description
Keywords
VETERINARY PATHOLOGY, A STUDY