Journal
MEAT SCIENCE
Volume 95, Issue 2, Pages 381-388Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2013.04.051
Keywords
Shiga-toxin producing Escherichia coli; Serogroups; Virulence factors; Antibiotic resistance properties; Ruminant's meat
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Funding
- Islamic Azad University, Shahrekord Branch-Iran [91/2069]
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To assess the presences of Escherichia coli, its serogroups, virulence factors and antibiotic resistance properties in ruminant's meat, a total of 820 raw meat samples were collected and then evaluated using culture, PCR and disk diffusion methods. Totally, 238 (29.02%) samples were positive for presence of Escherichia coli. All of the isolates had more than one virulence gene including Stx1, Stx2, eaeA and ehly. All investigated serogroups were found in beef and sheep and all except 0145, 0121 and 0128 were found in goat. The O91, O113, O111, O103, O26 and O157 serogroups were found in camel. Totally, aadA1-blaSHV combination was the most predominant antibiotic resistance gene. The highest resistance of STEC strains was seen against penicillin while resistance to nitrofurantoin and ciprofloxacin was minimal. These findings showed that health care and meat inspection should be reconsidered in Iranian slaughterhouses and butchers. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
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