Modeling of Salmonella Contamination in the Pig Slaughterhouse

A.N. Swart, E.G. Evers, R.L.L. Simons, M. Swanenburg

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)

Abstract

In this article we present a model for Salmonella contamination of pig carcasses in the slaughterhouse. This model forms part of a larger QMRA (quantitative microbial risk assessment) on Salmonella in slaughter and breeder pigs, which uses a generic model framework that can be parameterized for European member states, to describe the entire chain from farm-to-consumption and the resultant human illness. We focus on model construction, giving mathematical formulae to describe Salmonella concentrations on individual pigs and slaughter equipment at different stages of the slaughter process. Variability among individual pigs and over slaughterhouses is incorporated using statistical distributions, and simulated by Monte Carlo iteration. We present the results over the various slaughter stages and show that such a framework is especially suitable to investigate the effect of various interventions. In this article we present the results of the slaughterhouse module for two case study member states. The model outcome represents an increase in average prevalence of Salmonella contamination and Salmonella numbers at dehairing and a decrease of Salmonella numbers at scalding. These results show good agreement when compared to several other QMRAs and microbiological studies.

Original languageEnglish
Pages (from-to)498-515
JournalRisk Analysis
Volume36
Issue number3
DOIs
Publication statusPublished - 2016

Fingerprint

Abattoirs
Salmonella
Contamination
Swine
Statistical Distributions
Risk assessment
Farms
Equipment and Supplies

Keywords

  • Pig
  • QMRA
  • Salmonella
  • Slaughter

Cite this

Swart, A. N., Evers, E. G., Simons, R. L. L., & Swanenburg, M. (2016). Modeling of Salmonella Contamination in the Pig Slaughterhouse. Risk Analysis, 36(3), 498-515. https://doi.org/10.1111/risa.12514
Swart, A.N. ; Evers, E.G. ; Simons, R.L.L. ; Swanenburg, M. / Modeling of Salmonella Contamination in the Pig Slaughterhouse. In: Risk Analysis. 2016 ; Vol. 36, No. 3. pp. 498-515.
@article{c9746ed18c834f1da0e50c1c1324bac8,
title = "Modeling of Salmonella Contamination in the Pig Slaughterhouse",
abstract = "In this article we present a model for Salmonella contamination of pig carcasses in the slaughterhouse. This model forms part of a larger QMRA (quantitative microbial risk assessment) on Salmonella in slaughter and breeder pigs, which uses a generic model framework that can be parameterized for European member states, to describe the entire chain from farm-to-consumption and the resultant human illness. We focus on model construction, giving mathematical formulae to describe Salmonella concentrations on individual pigs and slaughter equipment at different stages of the slaughter process. Variability among individual pigs and over slaughterhouses is incorporated using statistical distributions, and simulated by Monte Carlo iteration. We present the results over the various slaughter stages and show that such a framework is especially suitable to investigate the effect of various interventions. In this article we present the results of the slaughterhouse module for two case study member states. The model outcome represents an increase in average prevalence of Salmonella contamination and Salmonella numbers at dehairing and a decrease of Salmonella numbers at scalding. These results show good agreement when compared to several other QMRAs and microbiological studies.",
keywords = "Pig, QMRA, Salmonella, Slaughter",
author = "A.N. Swart and E.G. Evers and R.L.L. Simons and M. Swanenburg",
year = "2016",
doi = "10.1111/risa.12514",
language = "English",
volume = "36",
pages = "498--515",
journal = "Risk Analysis",
issn = "0272-4332",
publisher = "Wiley",
number = "3",

}

Swart, AN, Evers, EG, Simons, RLL & Swanenburg, M 2016, 'Modeling of Salmonella Contamination in the Pig Slaughterhouse', Risk Analysis, vol. 36, no. 3, pp. 498-515. https://doi.org/10.1111/risa.12514

Modeling of Salmonella Contamination in the Pig Slaughterhouse. / Swart, A.N.; Evers, E.G.; Simons, R.L.L.; Swanenburg, M.

In: Risk Analysis, Vol. 36, No. 3, 2016, p. 498-515.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Modeling of Salmonella Contamination in the Pig Slaughterhouse

AU - Swart, A.N.

AU - Evers, E.G.

AU - Simons, R.L.L.

AU - Swanenburg, M.

PY - 2016

Y1 - 2016

N2 - In this article we present a model for Salmonella contamination of pig carcasses in the slaughterhouse. This model forms part of a larger QMRA (quantitative microbial risk assessment) on Salmonella in slaughter and breeder pigs, which uses a generic model framework that can be parameterized for European member states, to describe the entire chain from farm-to-consumption and the resultant human illness. We focus on model construction, giving mathematical formulae to describe Salmonella concentrations on individual pigs and slaughter equipment at different stages of the slaughter process. Variability among individual pigs and over slaughterhouses is incorporated using statistical distributions, and simulated by Monte Carlo iteration. We present the results over the various slaughter stages and show that such a framework is especially suitable to investigate the effect of various interventions. In this article we present the results of the slaughterhouse module for two case study member states. The model outcome represents an increase in average prevalence of Salmonella contamination and Salmonella numbers at dehairing and a decrease of Salmonella numbers at scalding. These results show good agreement when compared to several other QMRAs and microbiological studies.

AB - In this article we present a model for Salmonella contamination of pig carcasses in the slaughterhouse. This model forms part of a larger QMRA (quantitative microbial risk assessment) on Salmonella in slaughter and breeder pigs, which uses a generic model framework that can be parameterized for European member states, to describe the entire chain from farm-to-consumption and the resultant human illness. We focus on model construction, giving mathematical formulae to describe Salmonella concentrations on individual pigs and slaughter equipment at different stages of the slaughter process. Variability among individual pigs and over slaughterhouses is incorporated using statistical distributions, and simulated by Monte Carlo iteration. We present the results over the various slaughter stages and show that such a framework is especially suitable to investigate the effect of various interventions. In this article we present the results of the slaughterhouse module for two case study member states. The model outcome represents an increase in average prevalence of Salmonella contamination and Salmonella numbers at dehairing and a decrease of Salmonella numbers at scalding. These results show good agreement when compared to several other QMRAs and microbiological studies.

KW - Pig

KW - QMRA

KW - Salmonella

KW - Slaughter

U2 - 10.1111/risa.12514

DO - 10.1111/risa.12514

M3 - Article

VL - 36

SP - 498

EP - 515

JO - Risk Analysis

JF - Risk Analysis

SN - 0272-4332

IS - 3

ER -