Molecular studies on the distribution of associated virulence genes with avian pathogenic Escherichia coli (APEC) /
Heba Mohammed Hassan
Molecular studies on the distribution of associated virulence genes with avian pathogenic Escherichia coli (APEC) / دراسات جزيئية لا يشيريشيا كولاى الممرضة للطيور الجينات الضاربة المصاحبة Heba Mohammed Hassan ; Supervised Kamelia Mahmoud Osman , Mohamed Khalifa Hassan - Cairo : Heba Mohammed Hassan , 2013 - 206 P. : facsimiles ; 25cm
Thesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Microbiology
in this study, 90 tested flocks were collected from different sources of poultry ( grandparents and layers and broilers and broiler breeders ) of suspected E. coli septicemia in Egypt . Based on the obtained results, it was found that the prevalence of E.coli infection 95.6 %. The 86 serotypes were distributed as 16 (18.16%) of serotypes O125:K70, 12 (13.95%) of serotypes O158:K-, 10 (11.62%) of serotypes O44:K74 and O114:K90 each, 9 (10.46%) of untypable isolates, 6 (6.97%) of serotypes O91:K-, 4 (4.48%) O111:K58, O78:K80 and O25:K11, 2 (11.62%) of serotypes O103:K- and O26:K60 and finally the lowest percentage 1 (1.16%) were detected in serotypes O86: K- and O127:K63 Testing of the phynotypic properties of the 86 isolates it was found that all tested E. coli isolates were Congo red positive but with different intensities , the isolates tested were positive in their motility test and haemolysis assay (100%), results showed that the two cell lines MDCK and Vero cells were infected with E. coli
Avian pathogenic Escherichia Virulence genes
Molecular studies on the distribution of associated virulence genes with avian pathogenic Escherichia coli (APEC) / دراسات جزيئية لا يشيريشيا كولاى الممرضة للطيور الجينات الضاربة المصاحبة Heba Mohammed Hassan ; Supervised Kamelia Mahmoud Osman , Mohamed Khalifa Hassan - Cairo : Heba Mohammed Hassan , 2013 - 206 P. : facsimiles ; 25cm
Thesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Microbiology
in this study, 90 tested flocks were collected from different sources of poultry ( grandparents and layers and broilers and broiler breeders ) of suspected E. coli septicemia in Egypt . Based on the obtained results, it was found that the prevalence of E.coli infection 95.6 %. The 86 serotypes were distributed as 16 (18.16%) of serotypes O125:K70, 12 (13.95%) of serotypes O158:K-, 10 (11.62%) of serotypes O44:K74 and O114:K90 each, 9 (10.46%) of untypable isolates, 6 (6.97%) of serotypes O91:K-, 4 (4.48%) O111:K58, O78:K80 and O25:K11, 2 (11.62%) of serotypes O103:K- and O26:K60 and finally the lowest percentage 1 (1.16%) were detected in serotypes O86: K- and O127:K63 Testing of the phynotypic properties of the 86 isolates it was found that all tested E. coli isolates were Congo red positive but with different intensities , the isolates tested were positive in their motility test and haemolysis assay (100%), results showed that the two cell lines MDCK and Vero cells were infected with E. coli
Avian pathogenic Escherichia Virulence genes