Title |
Occurrence of Salmonella spp. and generic Escherichia coli on beef carcasses sampled at a brazilian slaughterhouse
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Published in |
Brazilian Journal of Microbiology, January 2014
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DOI | 10.1590/s1517-83822014005000037 |
Pubmed ID | |
Authors |
Fabiana Fernanda Pacheco da Silva, Mariana Bandeira Horvath, Juliana Guedes Silveira, Luiza Pieta, Eduardo Cesar Tondo |
Abstract |
A total of 120 beef carcasses were analyzed during processing at a slaughterhouse in southern Brazil. The carcasses were sampled by swab at three different steps of the slaughter line and then they were tested for Salmonella and E. coli. The Salmonella isolates were also examined for antimicrobial susceptibility. Salmonella prevalence distribution was modeled and the probability of contamination was simulated using @Risk program and 10,000 interactions. Results demonstrated that 4 beef carcasses (3.3%) were positive for Salmonella only in the first point. The six isolates of Salmonella were classified: S. Newport (n = 3), S. Saintpaul (n = 2) and S. Anatum (n = 1). No Salmonella strains exhibited resistance to any of the antimicrobials tested. As expected, the most contaminated point with E. coli was the first point (hide), presenting counts from 0.31 to 5.07 log cfu/100 cm(2). Much smaller E. coli counts were observed in the other points. Results indicated low levels of Salmonella and E. coli on the beef carcasses analyzed and also low probability of contamination of the carcasses by Salmonella, suggesting adequate microbiological quality. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United Kingdom | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Botswana | 1 | 2% |
Greece | 1 | 2% |
Unknown | 55 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 9 | 16% |
Other | 6 | 11% |
Researcher | 5 | 9% |
Student > Doctoral Student | 5 | 9% |
Student > Postgraduate | 5 | 9% |
Other | 12 | 21% |
Unknown | 15 | 26% |
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Agricultural and Biological Sciences | 14 | 25% |
Veterinary Science and Veterinary Medicine | 6 | 11% |
Biochemistry, Genetics and Molecular Biology | 5 | 9% |
Medicine and Dentistry | 4 | 7% |
Immunology and Microbiology | 4 | 7% |
Other | 6 | 11% |
Unknown | 18 | 32% |