Abstract
Clostridium perfringens is a causative agent of human and animal foodborne diseases. It is known as a normal inhabitant of the intestinal tract of chickens as well as a potential pathogen causing necrotic enteritis. The aim of the present study was to detect the incidence of C. perfringens in healthy broiler chickens. From May 2005 to September 2006, 609 samples of caecal content from broilers from 23 intensive poultry farms were analyzed. The samples were cultivated on TSC and blood agar, typical colonies were identified and biochemically confirmed. the total number of positive samples was 112 (18.39%). the samples were processed by the multiplex polymerase chain reaction method (PCR) for toxin genotyping. The presence of alpha, beta, beta2 and enterotoxin gene was detected. All C. perfringens isolates were classified as type A, four isolates had the cpb2 gene. In conclusion the prevalence of C. perfringens-positive farms is approximately 74% and the amount ranges about 104 cfu/g of caecal content.
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