Clinical and Morphological Studies on Spontaneous Cases of
Pseudomonas aeruginosa Infections in Birds
I. Dinev1, S.
Denev2* and G.
Beev2
1Department
of General and Clinical Pathology, Faculty of Veterinary Medicine;
2Department of Biochemistry and Microbiology, Faculty of
Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria *Corresponding Author:
stefandenev@hotmail.com
Abstract
Clinical, pathoanatomical, histological, and
bacteriological studies were performed on broiler chickens, growing broiler
parents, and growing egg layers, in three different poultry farms, after an
outbreak of Pseudomonas aeruginosa infections. The method of
contamination of the birds was established. Several local and systemic clinico-morphological
forms of spontaneous P. aeruginosa infections in various categories of
stock birds were described: cases of P. aeruginosa infection
resulting from injection of contaminated vaccines; case of P.aeruginosa infections through
contaminated aerosol vaccine and cases of pododermatitis, periarthritis and
arthritis in broiler chickens associated with P. aeruginosa
infection. In different cases mortality range between 0.5 and 50%. The
results showed that apart from embryonic mortality in hatcheries, and septicemic
infections in newly hatched chickens, the pathogenicity of P. aeruginosa
was associated with localized and systemic lesions in this category, as well as
in young and growing birds. On one hand, these results have a theoretical
significance, contributing for the confirmation and expansion of the wide array
of clinico-morphological forms of P. aeruginosa infections in birds. On
the other hand, the knowledge on these forms has a purely practical significance
in the diagnostics of P. aeruginosa infections by poultry pathologists
and veterinary practitians.
Key words:
Broilers,
Clinico-morphological forms, Infection, Layers, P. aeruginosa