الفهرس 
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Abstract
Two hundred fresh chicken meat samples collected randomly from Port-Said markets to study the prevalence of Salmonella species. Bacteriological examination of chicken samples revealed the isolation of 9 (4.5%) Salmonella isolates while serological identification revealed the isolation of Salmonella Typhimurium 2/9 (22.2%) and Salmonella Muenster 2/9 (22.2%) which was the most frequent identified. Other serotypes as Salmonella Enteritidis 1/9 (11.1%), Salmonella Blegdam 1/9 (11.1%), Salmonella Anatum 1/9 (11.1%), Salmonella Lamberhurst 1/9 (11.1%) and Salmonella Ayinde 1/9 (11.1%). The antibiogram of the isolated Salmonellae revealed that, tested isolates were highly resistant to Erythromycin and Oxytetracycline by a percentage (100%) followed by Nalidixic acid in (44.4%) while it was highly sensitive to Chloramphenicol and Ciprofloxacin by a percentage (100%) followed by Gentamycin in (88.9%). PCR revealed that, 7 Salmonella isolates were positive for the presence of virulence genes (stn, sopB, spvC and bcfC) genes while 6 only from 7 Salmonella isolates were positive for virulence gene avrA.