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363159

Studies on the Role of Free Living Birds as a Source of Pathogenic Escherichia coli infection to Chickens

Article

Last updated: 03 Jan 2025

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Subjects

-

Tags

Avian diseases / production

Abstract

This study investigated the prevalence of pathogenic E. coli in internal organs (liver, heart and spleen) of 75 broiler chickens representing 15 broiler chicken flocks showing respiratory manifestations and 60 free living birds (25 House sparrows, 15 Doves, 16 Cattle egrets and 4 white throated-King fishers) inside and in the same vicinity of previously sampled broiler chicken flocks in different localities of Kafr el-Sheikh province, Egypt from late 2013 up to early 2015. The results revealed 48 (64 %) isolates out of 75 broiler chicken samples, whereas 10(16.67%) isolates out of 60 free living bird samples. Invitro pathogenicity test using Congo red assay showed that out of 48 isolates from broiler chicken 22 (45.8 %) showed Congo red positive, whereas out of 10 isolate from free living birds 5 (50 %) showed Congo red positive. Serotyping was carried out on 5 selected Congo red positive isolates of broiler chickens and all 10 isolates of free living birds. Three E. coli serogroups belong to 044, O55 and 0157 strains from broiler chickens and six serogroups belong to 0128, O55, 0136, 0127 and 0164 strains from free living birds; were subjected to in vivo pathogenicity assay in one- day specific pathogen free (SPF) chicks. The pathogenicity in day-old SPF showed 100 % mortality with strain 0136 (House sparrow origin), 80 % mortality with the strain 044 (broiler chicken origin), 40 % mortality with strain O55 (Dove origin), 20 % with both strains; 0157 (chicken origin) and 0128 (House sparrow origin), whereas other strains; O55 (chicken origin), O55 (House sparrow origin), 0127 (Dove origin) and 0164 (Cattle egret origin) did not caused any mortality in day-old chicks. The study suggested that free living birds may play an important role in prevalence and introduction of pathogenic strains of E. coli to broiler chicken farms.

DOI

10.21608/vmjg.2016.363159

Keywords

E. coli, Incidence, Serotyping, pathogenicity, Broiler chickens, Free living birds

Authors

First Name

M

Last Name

El-Shazly

MiddleName

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Affiliation

Veterinarian at Desouk Veterinary Unit, Kafr el-Sheikh Province, Egypt.

Email

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City

-

Orcid

-

First Name

A

Last Name

Hassan

MiddleName

-

Affiliation

Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Egypt.

Email

-

City

-

Orcid

-

First Name

J

Last Name

ElJakee

MiddleName

-

Affiliation

Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Egypt.

Email

-

City

-

Orcid

-

First Name

Y

Last Name

Youssef

MiddleName

-

Affiliation

Department of Poultry and Rabbit Diseases, Faculty of Veterinary Medicine, Cairo University, Egypt.

Email

-

City

-

Orcid

-

Volume

62

Article Issue

2

Related Issue

47597

Issue Date

2016-04-01

Receive Date

2024-07-01

Publish Date

2016-04-01

Page Start

65

Page End

71

Print ISSN

1110-1423

Online ISSN

2537-1045

Article File

VMJG_Volume 62_Issue 2_Pages 65-71.pdf

PDF . 3.2MB

Link

https://vmjg.journals.ekb.eg/article_363159.html

Detail API

https://vmjg.journals.ekb.eg/service?article_code=363159

Order

363,159

Publication Type

Journal

Publication Title

Veterinary Medical Journal (Giza)

Publication Link

https://vmjg.journals.ekb.eg/

MainTitle

Studies on the Role of Free Living Birds as a Source of Pathogenic Escherichia coli infection to Chickens

Details

Type

Article

Created At

23 Dec 2024