An analysis of quality assurance and zoonoses action plan data from pig herds in the United Kingdom

RP Smith, M Sanchez-Vazquez, AJC Cook, HE Clough, SA Edwards

Research output: Contribution to journalArticle

Abstract

The Zoonoses Action Plan required that meat juice (MJ) samples from slaughtered pigs were monitored for antibodies against salmonella in amix-ELISA. These results were linked to data, routinely collected by quality assurance schemes to create a dataset, representingmore than 1,500 pig holdings with an average of 30MJ ELISA results per farm. The data was analysed to identify factors associated with salmonella infection, and to indicate potential analytical approaches.Multivariable analysis showed that samples fromfarms in Yorkshire and the Humber, and those that housed finisher pigs on solid flooring,were associated with positive ELISA results.Univariable analysis showed significant regional differences in pigmanagement, and spatial analysis showed high prevalence holdings in Yorkshire and the Humber weremore clustered in space than low prevalence holdings.However, poor data quality precluded analysis ofmany variables, and recording errors in identifiers (e.g. slapmark) caused problems inmatching samples to holdings. If the quality and range of data collected in the schemes could be improved, then the large sample size would ensure sufficient statistical power to identify even weak associations between a broad set of variables and MJ ELISA status,which could help target on-farmcontrolmeasures relevant for the UK pig population.
Original languageEnglish
Pages (from-to)43 - 51
Number of pages9
JournalThe Pig Journal
Volume64
Publication statusFirst published - 2010

Fingerprint

action plan
pig
meat
data quality
spatial analysis
antibody
farm
quality assurance
analysis
zoonosis
salmonella

Bibliographical note

2032599

Keywords

  • Herd
  • Pig
  • Quality assurance
  • UK
  • Zoonoses

Cite this

Smith, RP., Sanchez-Vazquez, M., Cook, AJC., Clough, HE., & Edwards, SA. (2010). An analysis of quality assurance and zoonoses action plan data from pig herds in the United Kingdom. The Pig Journal, 64, 43 - 51.
Smith, RP ; Sanchez-Vazquez, M ; Cook, AJC ; Clough, HE ; Edwards, SA. / An analysis of quality assurance and zoonoses action plan data from pig herds in the United Kingdom. In: The Pig Journal. 2010 ; Vol. 64. pp. 43 - 51.
@article{74c55244603f406c92a16d08ff63e0a2,
title = "An analysis of quality assurance and zoonoses action plan data from pig herds in the United Kingdom",
abstract = "The Zoonoses Action Plan required that meat juice (MJ) samples from slaughtered pigs were monitored for antibodies against salmonella in amix-ELISA. These results were linked to data, routinely collected by quality assurance schemes to create a dataset, representingmore than 1,500 pig holdings with an average of 30MJ ELISA results per farm. The data was analysed to identify factors associated with salmonella infection, and to indicate potential analytical approaches.Multivariable analysis showed that samples fromfarms in Yorkshire and the Humber, and those that housed finisher pigs on solid flooring,were associated with positive ELISA results.Univariable analysis showed significant regional differences in pigmanagement, and spatial analysis showed high prevalence holdings in Yorkshire and the Humber weremore clustered in space than low prevalence holdings.However, poor data quality precluded analysis ofmany variables, and recording errors in identifiers (e.g. slapmark) caused problems inmatching samples to holdings. If the quality and range of data collected in the schemes could be improved, then the large sample size would ensure sufficient statistical power to identify even weak associations between a broad set of variables and MJ ELISA status,which could help target on-farmcontrolmeasures relevant for the UK pig population.",
keywords = "Herd, Pig, Quality assurance, UK, Zoonoses",
author = "RP Smith and M Sanchez-Vazquez and AJC Cook and HE Clough and SA Edwards",
note = "2032599",
year = "2010",
language = "English",
volume = "64",
pages = "43 -- 51",
journal = "The Pig Journal",

}

Smith, RP, Sanchez-Vazquez, M, Cook, AJC, Clough, HE & Edwards, SA 2010, 'An analysis of quality assurance and zoonoses action plan data from pig herds in the United Kingdom', The Pig Journal, vol. 64, pp. 43 - 51.

An analysis of quality assurance and zoonoses action plan data from pig herds in the United Kingdom. / Smith, RP; Sanchez-Vazquez, M; Cook, AJC; Clough, HE; Edwards, SA.

In: The Pig Journal, Vol. 64, 2010, p. 43 - 51.

Research output: Contribution to journalArticle

TY - JOUR

T1 - An analysis of quality assurance and zoonoses action plan data from pig herds in the United Kingdom

AU - Smith, RP

AU - Sanchez-Vazquez, M

AU - Cook, AJC

AU - Clough, HE

AU - Edwards, SA

N1 - 2032599

PY - 2010

Y1 - 2010

N2 - The Zoonoses Action Plan required that meat juice (MJ) samples from slaughtered pigs were monitored for antibodies against salmonella in amix-ELISA. These results were linked to data, routinely collected by quality assurance schemes to create a dataset, representingmore than 1,500 pig holdings with an average of 30MJ ELISA results per farm. The data was analysed to identify factors associated with salmonella infection, and to indicate potential analytical approaches.Multivariable analysis showed that samples fromfarms in Yorkshire and the Humber, and those that housed finisher pigs on solid flooring,were associated with positive ELISA results.Univariable analysis showed significant regional differences in pigmanagement, and spatial analysis showed high prevalence holdings in Yorkshire and the Humber weremore clustered in space than low prevalence holdings.However, poor data quality precluded analysis ofmany variables, and recording errors in identifiers (e.g. slapmark) caused problems inmatching samples to holdings. If the quality and range of data collected in the schemes could be improved, then the large sample size would ensure sufficient statistical power to identify even weak associations between a broad set of variables and MJ ELISA status,which could help target on-farmcontrolmeasures relevant for the UK pig population.

AB - The Zoonoses Action Plan required that meat juice (MJ) samples from slaughtered pigs were monitored for antibodies against salmonella in amix-ELISA. These results were linked to data, routinely collected by quality assurance schemes to create a dataset, representingmore than 1,500 pig holdings with an average of 30MJ ELISA results per farm. The data was analysed to identify factors associated with salmonella infection, and to indicate potential analytical approaches.Multivariable analysis showed that samples fromfarms in Yorkshire and the Humber, and those that housed finisher pigs on solid flooring,were associated with positive ELISA results.Univariable analysis showed significant regional differences in pigmanagement, and spatial analysis showed high prevalence holdings in Yorkshire and the Humber weremore clustered in space than low prevalence holdings.However, poor data quality precluded analysis ofmany variables, and recording errors in identifiers (e.g. slapmark) caused problems inmatching samples to holdings. If the quality and range of data collected in the schemes could be improved, then the large sample size would ensure sufficient statistical power to identify even weak associations between a broad set of variables and MJ ELISA status,which could help target on-farmcontrolmeasures relevant for the UK pig population.

KW - Herd

KW - Pig

KW - Quality assurance

KW - UK

KW - Zoonoses

M3 - Article

VL - 64

SP - 43

EP - 51

JO - The Pig Journal

JF - The Pig Journal

ER -

Smith RP, Sanchez-Vazquez M, Cook AJC, Clough HE, Edwards SA. An analysis of quality assurance and zoonoses action plan data from pig herds in the United Kingdom. The Pig Journal. 2010;64:43 - 51.