Efficacy of some disinfectant compounds against porcine bacterial pathogens
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.