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Paper Information

Journal:   IRANIAN JOURNAL OF VETERINARY MEDICINE (INTERNATIONAL JOURNAL OF VETERINARY RESEARCH)   2015 , Volume 9 , Number 4; Page(s) 271 To 278.
 
Paper: 

A STUDY ON THE PRESENCE OF SOME POTENTIAL VIRULENCE GENES AND QUINOLONE RESISTANCE IN AVIAN PATHOGENIC ESCHERICHIA COLI ISOLATED FROM CHICKENS IN NORTHEAST OF IRAN

 
 
Author(s):  RAD M.*, KOOSHAN M.
 
* DEPARTMENT OF PATHOBIOLOGY, SCHOOL OF VETERINARY MEDICINE, FERDOWSI UNVERSITY OF MASHHAD, MASHHAD, IRAN
 
Abstract: 

BACKGROUND: Avian pathogenic Escherichia coli (APEC), which is the causative agent of colibacillosis, harbors several putative virulence genes. An important trait of APEC for both poultry and public health is antibiotic resistance.
OBJECTIVES: In the present study, some potential virulence genes of APECs isolated from Northeast of Iran and their resistance to the quinolones antibiotics were studied.
METHODS: The conventional polymerase chain reaction (PCR) was used to determine the presence of four virulence genes, includingiss, cvi, iuc, and tsh, in 52 isolates of E. coli from avian colibacillosis and 11 isolates from feces of apparently healthy chicken.
Disk diffusion method was used to also determine the resistance of all the isolates against nalidixic acid, norofloxacin, ciprofloxacin, and enrofloxacin.
RESULTS: The presence of iss andtsh virulence genes in isolates from diseased chickens was significantly higher than isolates from healthy chickens. There was no significant difference between APEC and fecalE. coli when it comes to quinolone resistance. However, cvi and iuc genes were significantly higher in susceptible isolates ofE. coli from healthy chickens.
CONCLUSIONS: iss and tsh genes are more prevalent in APEC isolates than in fecal isolates. There is no association between lack of virulence and resistance to quinolones inE. coli isolates from diseased chickens.

 
Keyword(s): AVIAN PATHOGENIC ESCHERICHIA COLI (APEC), COLIBACILLOSIS, QUINOLONE RESISTANCE, VIRULENCE GENES
 
 
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+ Click to Cite.
APA: Copy

RAD, M., & KOOSHAN, M. (2015). A STUDY ON THE PRESENCE OF SOME POTENTIAL VIRULENCE GENES AND QUINOLONE RESISTANCE IN AVIAN PATHOGENIC ESCHERICHIA COLI ISOLATED FROM CHICKENS IN NORTHEAST OF IRAN. IRANIAN JOURNAL OF VETERINARY MEDICINE (INTERNATIONAL JOURNAL OF VETERINARY RESEARCH), 9(4), 271-278. https://www.sid.ir/en/journal/ViewPaper.aspx?id=507728



Vancouver: Copy

RAD M., KOOSHAN M.. A STUDY ON THE PRESENCE OF SOME POTENTIAL VIRULENCE GENES AND QUINOLONE RESISTANCE IN AVIAN PATHOGENIC ESCHERICHIA COLI ISOLATED FROM CHICKENS IN NORTHEAST OF IRAN. IRANIAN JOURNAL OF VETERINARY MEDICINE (INTERNATIONAL JOURNAL OF VETERINARY RESEARCH). 2015 [cited 2021May17];9(4):271-278. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=507728



IEEE: Copy

RAD, M., KOOSHAN, M., 2015. A STUDY ON THE PRESENCE OF SOME POTENTIAL VIRULENCE GENES AND QUINOLONE RESISTANCE IN AVIAN PATHOGENIC ESCHERICHIA COLI ISOLATED FROM CHICKENS IN NORTHEAST OF IRAN. IRANIAN JOURNAL OF VETERINARY MEDICINE (INTERNATIONAL JOURNAL OF VETERINARY RESEARCH), [online] 9(4), pp.271-278. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=507728.



 
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