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Systematic review of the magnitude of change in prevalence and quantity of Salmonella after administration of pathogen reduction treatments on pork carcasses

Published online by Cambridge University Press:  18 July 2016

Sarah C. Totton ,
Julie M. Glanville ,
Rungano S. Dzikamunhenga ,
James S. Dickson  and
Annette M. O'Connor
Sarah C. Totton
Affiliation:
63 College Avenue West, Guelph ON N1G 1S1, Canada
Julie M. Glanville
Affiliation:
York Health Economics Consortium Ltd., Level 2 Market Square, University of York, York, YO10 5NH, UK
Rungano S. Dzikamunhenga
Affiliation:
Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA
James S. Dickson
Affiliation:
Department of Animal Science, Iowa State University, Ames, IA 50011, USA
Annette M. O'Connor*
Affiliation:
Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA
*
*Corresponding author. E-mail: oconnor@iastate.edu
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Abstract

Objective:

In this systematic review, we summarized change in Salmonella prevalence and/or quantity associated with pathogen reduction treatments (washes, sprays, steam) on pork carcasses or skin-on carcass parts in comparative designs (natural or artificial contamination).

Methods:

In January 2015, CAB Abstracts (1910–2015), SCI and CPCI–Science (1900–2015), Medline® and Medline® In-Process (1946–2015) (OVIDSP), Science.gov, and Safe Pork (1996–2012) were searched with no language or publication type restrictions. Reference lists of 24 review articles were checked. Two independent reviewers screened 4001 titles/abstracts and assessed 122 full-text articles for eligibility. Only English-language records were extracted.

Results:

Fourteen studies (5 in commercial abattoirs) were extracted and risk of bias was assessed by two reviewers independently. Risk of bias due to systematic error was moderate; a major source of bias was the potential differential recovery of Salmonella from treated carcasses due to knowledge of the intervention. The most consistently observed association was a positive effect of acid washes on categorical measures of Salmonella; however, this was based on individual results, not a summary effect measure.

Conclusion:

There was no strong evidence that any one intervention protocol (acid temperature, acid concentration, water temperature) was clearly superior to others for Salmonella control.

Keywords

carcassinterventionporkSalmonellasystematic review
Type
Review Article
Information
Animal Health Research Reviews , Volume 17 , Special Issue 1: Systematic Reviews , June 2016 , pp. 39 - 59
Copyright
Copyright © Cambridge University Press 2016 

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