E. Coli

2.REVIEW OF LITERATURE
2.1. Incidence of pathogenic Enterbacteriaceae.
Review of Literature
2.1.1. Different E. coli serotypes isolated from broilers:
Bozorgmehri et al. (1980) isolated 90 strains of E.coli from
chickens and recorded that the registrated serotypes were O78: K80,
O111:B4, O128:B12, O119:B14 and O86:B7 while the remaining
strains could not be serologically typed.
Burkhanova (1980) isolated 337 strains of enteropathogenic E.
coli from blood, bone marrow and liver of dead baby chicks. He
proved that the prevalent serogroups of E. coli were O:9, O:119, O:55,
O:125, O:26 and O:78.
Abd El-Galil et al. (1983) isolated E.coli from first 10 days old
dead baby chicks of a private poultry farms in Sharkia Government.
They were 30 cases with an incidence of 15% and the most prevalent
pathogenic serogroups were O:125, O:119, O:78 and O:55.
Joya et al. (1990) investigated two outbreaks of diarrhea in
broiler chicks at two independent farms in the Philippines from, which
no pathogens other than E.coli were found.
Osman (1992) examined 150 bacteriological swabs, which were
taken directly from liver, spleen, lung and heart blood of first ten days
old chicks, which were collected from various localities in Sharkia
Governorate broiler farms. Forty two E.coli strains were isolated with
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