الفهرس | Only 14 pages are availabe for public view |
Abstract The prevalence of salmonellae among layer farms was investigated in this study which cover different provinces in Egypt, methods used for this purpose was ISO 6579 for isolation and identification of Salmonella and Kauffmann- White scheme for Salmonella serotyping. Also to define some aspects of the progress of infection with SE in commercial laying hens, methods used for this purpose were serological detection of SE antibodies by ELlSA, detection of SE by ISO 6579 and peR, application of most probable number for SE and detection of the inhibitory effect of egg yolk on SE. |