Pathotyping of E. coli from Poultry

Author: Thangavel Kandasamy

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Abstract

Colibacillosis, caused by pathogenic Escherichia coli, is one of the main causes of economic losses among the poultry, worldwide. Losses occur at all ages, due to increase in morbidity and mortality, thus directly influencing the management and treatment costs. The characteristics of the disease and its aetiological agent have not yet been well defined. Thirty seven isolates of E. coli were collected from different age groups of chicks, evincing pathogenic lesions and their pathogenicity was confirmed by chick lethality test and congored binding assay. Positive correlation existed between the two tests in identifying the pathogenic isolates. This will give new insights in the early diagnosis of pathogenic E. coli in poultry to formulate the control strategies

Keywords

E. coli, Pathotyping, Congored binding, Chick letahality

Conclusion

Congo red binding assay confirmed the pathogenicity of the isolates, which could be further confirmed by chick lethality tests by pathognomonic postmortem and histopathological lesions

References

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How to cite this article

Thangavel Kandasamy (2021). Pathotyping of E. coli from Poultry. Biological Forum – An International Journal, 13(4): 1345-1348