Fig. 2

Representative agarose gel electrophoresis for PCR assay of the virulence genes detected in Salmonella species. A invA (244 bp); B stn (480 bp); C spvC (467 bp) in Salmonella isolates recovered from native Egyptian chicken carcasses. M; DNA marker (100-bp gene ladder). C+; Control positive, C–Control negative. Ten microliters of the PCR product were separated by electrophoresis on 1.5% agarose gel and visualized under UV light