E-ISSN 2536-9520 | ISSN 1110-2047
 
2025, Vol: 85
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Original Article
Online Published: 25 Jan 2016
 


Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination

Adel M. El-gamal, Engy F. El-bahi.


Abstract
Two hundred and fifty samples (100 fecal samples, 100 carcasses sponge swabs and 50 Environmental samples) were collected from feedlot cattle at Kafer EL-Sheikh abattoir for molecular characterization of rectal carriage of Escherichia coli O157:H7 and Salmonella spp. and its effects on the carcasses contamination. In fecal samples, the prevalence of Escherichia coli O157:H7 and Salmonella spp. were 5% and 3% respectively, while carcass contaminations with the same microbes were 1% and 0% respectively. In environmental samples, water samples have no Escherichia coli O157:H7 and 4% S. Enteritidis. There were isolates of E. coli non-O157 (O125:H21, O44:H18 and O103:H7) either from fecal, and carcasses sponge swab samples, which have great public health importance. Both E. coli O157 and E. coli non-O157 have Shiga toxin producing genes. Salmonella serotype isolates were S. Montevideo and S. Enteritidis. These results indicated that more hygienic measure needed in meat processing plants to prevent meat contamination with these pathogens and other pathogenic microorganisms.

Key words: : Molecular, Rectal carriage, E coli O157: H7, Salmonella spp., feedlot, carcasses contamination


 
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Pubmed Style

El-gamal AM, El-bahi EF. Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination. AJVS. 2016; 48(1): 42-49. doi:10.5455/ajvs.208144

Web Style

El-gamal AM, El-bahi EF. Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination. https://www.alexjvs.com/?mno=208144 [Access: May 03, 2025]. doi:10.5455/ajvs.208144

AMA (American Medical Association) Style

El-gamal AM, El-bahi EF. Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination. AJVS. 2016; 48(1): 42-49. doi:10.5455/ajvs.208144


Vancouver/ICMJE Style

El-gamal AM, El-bahi EF. Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination. AJVS. (2016), [cited May 03, 2025]; 48(1): 42-49. doi:10.5455/ajvs.208144


Harvard Style

El-gamal, A. M. & El-bahi, . E. F. (2016) Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination. AJVS, 48 (1), 42-49. doi:10.5455/ajvs.208144


Turabian Style

El-gamal, Adel M., and Engy F. El-bahi. 2016. Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination. Alexandria Journal of Veterinary Sciences, 48 (1), 42-49. doi:10.5455/ajvs.208144


Chicago Style

El-gamal, Adel M., and Engy F. El-bahi. "Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination." Alexandria Journal of Veterinary Sciences 48 (2016), 42-49. doi:10.5455/ajvs.208144


MLA (The Modern Language Association) Style

El-gamal, Adel M., and Engy F. El-bahi. "Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination." Alexandria Journal of Veterinary Sciences 48.1 (2016), 42-49. Print. doi:10.5455/ajvs.208144


APA (American Psychological Association) Style

El-gamal, A. M. & El-bahi, . E. F. (2016) Molecular Characterization of Rectal Carriage of E Coli O157: H7 and Salmonella Spp. in Feedlot Animals and Its Effects on Carcasses Contamination. Alexandria Journal of Veterinary Sciences, 48 (1), 42-49. doi:10.5455/ajvs.208144




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    The Alexandria Journal of Veterinary Sciences (AJVS) Official Journal of Faculty of Veterinary Medicine, Alexandria University   ISSN: 1110 ... Read more.



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