الفهرس 
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Abstract
Bacteriological examination of 400 samples (200 poultry products and 200 meat products) revealed the isolation of 26 Salmonella belonging to 8 different Salmonella serovars. The most common serovars were Salmonella Typhimurium (8 isolates), Salmonella Enteritidis (7 isolates), Salmonella Kentucky (2 isolates) and Salmonella Virchow (2 isolates). Other serovars typed were Salmonella Heidelberg (4), Salmonella Haifa (1), Salmonella Anatum (1), Salmonella Farsta (1). All isolates of Salmonella Enteritidis and Salmonella Typhimurium were examined for the virulence genes spvA and fliC genes respectively. Molecular biology techniques Direct PCR as well as non-functional gold nanoparticles probe were used for direct detection of two serovars (S.Typhimurium and S.Enteritidis) in food samples.