alexa Study on Carcass Contaminating <em>Escherichia coli</em> in Apparently Healthy Slaughtered Cattle in Haramaya University Slaughter House with Special Emphasis on <em>Escherichia coli</em> O157:H7, Ethiopia | Abstract
ISSN: 2157-7579

Journal of Veterinary Science & Technology
Open Access

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Research Article

Study on Carcass Contaminating Escherichia coli in Apparently Healthy Slaughtered Cattle in Haramaya University Slaughter House with Special Emphasis on Escherichia coli O157:H7, Ethiopia

Melaku Taye1, Tamiru Berhanu1, Yenehiwot Berhanu2, Firaol Tamiru3* and Dechassa Terefe2

1Faculty of Veterinary Medicine, University of Gondar, Ethiopia

2College of Veterinary Medicine, Haramaya University, Ethiopia

3College of Agriculture and Veterinary Science, Ambo University, Ethiopia

*Corresponding Author:
Firaol Tamiru
College of Agriculture and Veterinary Science
Ambo University
P. O. Box 19, Ethiopia
E-mail: [email protected]

Received date: January 06, 2013; Accepted February 02, 2013; Published date: February 04, 2013

Citation: Taye M, Berhanu T, Berhanu Y, Tamiru F, Terefe D (2013) Study on Carcass Contaminating Escherichia coli in Apparently Healthy Slaughtered Cattle in Haramaya University Slaughter House with Special Emphasis on Escherichia coli O157:H7, Ethiopia. J Veterinar Sci Technol 4:132. doi:10.4172/2157-7579.1000132

Copyright: © 2013 Taye M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

A cross sectional study was conducted from October 2010 to March 2011, on apparently healthy slaughtered cattle in Haramaya University Slaughter House to determine prevalence of Escherichia coli, with special emphasis on Escherichia coli O157:H7, and its antimicrobial susceptibility pattern. Carcass swab samples were collected and pre-enriched in buffered peptone water and plated on MacConkey agar plate. Presumptive colonies were confirmed by biochemical tests. Further identification of Escherichia coli O157:H7 was done by plating the isolatedm bacteria on Sorbitol MacConkey agar; and then colorless colonies were subjected to Escherichia coli O157:H7 Latex agglutination test. From a total of 113 samples collected, Escherichia coli was isolated from 35 (30.97%) and out of these, 3 (2.65%) were found to be Escherichia coli O157:H7. The difference in prevalence was not statistically significant (P>0.05) between local and cross breeds (χ2=0.11, df =4), among age group of animals (χ2=2.56, df=1) and origin of animals (χ2=2.56, df=2). The isolated bacteria were subjected to antimicrobial susceptibility testing and the majority were found to be susceptible to Chloramphenicol (30 μg), Kanamycin (30 μg), Spectinomycin (SH, 100 μg). The presence of E. coli O157:H7 in raw meats reaching to consumers indicated possible risks of infection to people through the consumption of raw (undercooked) meat and cross contamination of other food products. Therefore, control measures at all stages of food chain was recommended.

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