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Assessment of cleaning and disinfection in Salmonellacontaminated poultry layer houses using qualitative and semi-quantitative culture techniques

Wales, Andrew, Breslin, M and Davies, R (2006) Assessment of cleaning and disinfection in Salmonellacontaminated poultry layer houses using qualitative and semi-quantitative culture techniques Veterinary Microbiology, 116 (4). pp. 283-293.

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Abstract

Salmonella infection of laying flocks in the UK is predominantly a problem of the persistent contamination of layer houses and associated wildlife vectors by S. Enteritidis. Methods for its control and elimination include effective cleaning and disinfection of layer houses between flocks, and it is important to be able to measure the success of such decontamination. A method for the environmental detection and semi-quantitative enumeration of salmonellae was used and compared with a standard qualitative method, in twelve Salmonella-contaminated caged layer houses before and after cleaning and disinfection. The quantitative technique proved to have comparable sensitivity to the standard method, and additionally provided insights into the numerical Salmonella challenge that replacement flocks would encounter. Elimination of S. Enteritidis was not achieved in any of the premises examined although substantial reductions in the prevalence and numbers of salmonellae were demonstrated, while in others an increase in contamination was observed after cleaning and disinfection. Particular problems with feeders and wildlife vectors were highlighted. The use of a quantitative method assisted the identification of problem areas, such as those with a high initial bacterial load or those experiencing only a modest reduction in bacterial count following decontamination.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Veterinary Medicine
Authors :
NameEmailORCID
Wales, Andrewaw0051@surrey.ac.uk0000-0002-8657-3007
Breslin, MUNSPECIFIEDUNSPECIFIED
Davies, RUNSPECIFIEDUNSPECIFIED
Date : 7 May 2006
Identification Number : 10.1016/j.vetmic.2006.04.026
Copyright Disclaimer : © 2006. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Salmonella, poultry, layers, eggs, chickens, environment, cleaning and disinfection
Depositing User : Melanie Hughes
Date Deposited : 25 Oct 2017 11:14
Last Modified : 25 Oct 2017 11:14
URI: http://epubs.surrey.ac.uk/id/eprint/842661

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