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Ben Williams

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AHDB Pork Knowledge Exchange

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Efficacy of some disinfectant compounds against porcine bacterial pathogens

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Research partners: Scottish Agricultural College
Sponsors: AHDB Pork
Project duration: 2006 – 2007 

Aims and objectives

  • To test selected recent bacterial isolates, representing a range of common endemic diseases, against a number of disinfectants recommended for agricultural use
  • To contribute to existing information on the range of susceptibilities of bacterial pathogens to disinfectants
  • To optimise the benefits of the cleaning and disinfection procedures on farms and maximise the cost-benefits of these procedures. 

Findings to date

  • The bacterial pathogens showed widely different susceptibilities to the different disinfectants and none of the compounds was universally effective
  • Salmonella enterica Typhimurium, Salmonella derby, E.coli (Abbotstown strain) and Yersinia enterocolitica generally showed poor susceptibility to disinfectants
  • Brachyspira hyodysenteriae, Actinobacillus pleuropneumoniae, Bordetella bronchiseptica, Pasteurella multocida, Haemophilus parasuis, Streptococcus suis and Staphylococcus hyicus were all susceptible to multiple disinfectants under low organic matter conditions
  • Under high organic matter conditions, the efficacy of disinfectant compounds was markedly reduced in most tests
  • Low temperature and short contact times adversely affected results in some tests.

 Further information