Home|Journals|Articles by Year|Audio Abstracts
 

Original Article

AJVS. 2019; 62(2): 72-81


Role of Migratory Birds in Transmission of E. Coli Infection to Commercial Poultry

Maram M. Tawakol, Ahlam E. Younes.




Abstract

A total of 100 migratory birds were collected from Dakahlia and Damietta Governorates. All samples were subjected to clinical and postmortem (P.M) examination followed by bacteriological examination for detection of Avian Pathogenic E. coli infection. Out of 100 samples, 25 samples were distinguished as positive for Escherichia coli. Accurately, 4 E. coli serogroupes were identified in 25 positive samples and the most predominant serogroup were O125 (76 %), O126 (8%), O158 (8%), O86 (4%) and untypable E. coli (4 %). Studying antibiotic resistance pattern of E. coli isolates revealed that 64% of the isolates demonstrated multidrug resistance pattern. The highest resistance rates were recorded against Ciprofloxacin (88%) followed by Gentamycin (80%), Streptomycin (68%), Norfloxacin (40%), Colistin (16%) and Doxycycline (4%). Conventional PCR was done for detection of virulence genes (fimH, tsh, eaeA, stx1and stx2) in 10 isolates and the results revealed that; 100%, 60%, 40%, 0% and 0% were positive for these virulence genes, respectively. By studying the effect of one isolate of O125 No. 78 in commercial chicken (cobb) and ducks (pekin) we found that, more sever signs, pathological lesion and 100% mortality rate in cobb chicken than pekin ducks which had less signs nor pathological lesion with 10% mortality rate only.

Key words: Avian Pathogenic E. coli, Resistant to antibiotic, Virulent Genes, Migratory Birds, Pathogenic, Conventional PCR






Full-text options


Share this Article


Online Article Submission
• ejmanager.com




ejPort - eJManager.com
Refer & Earn
JournalList
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under Creative Commons Attribution 4.0 International License (CC BY), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.