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Investigations of Salmonella contamination in poultry feedmills in the UK

Davies, RH and Wales, Andrew (2010) Investigations of Salmonella contamination in poultry feedmills in the UK Journal of Applied Microbiology, 109 (4). pp. 1430-1440.

10 J Appl Microbiol (2010) 109 1430-1440.pdf - Accepted version Manuscript

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To investigate and compare commercial and farm-level milling operations in respect of the monitoring and control of Salmonella contamination.

Methods and Results:

Four commercial feedmills and four on-farm poultry feed mixers were intensively sampled. Samples included dust and spillages and were cultured for Salmonella. Serovars in ingredients on farms were associated with wildlife and/or livestock, whereas those in commercial mill ingredients were associated with domestically-produced cereals and imported vegetable protein. Endemic contamination of two commercial feedmills was reflected in isolates obtained from finished products and destination flocks. Renovation of equipment and chemical treatment of equipment and feed had not removed endemic strains, and previous routine monitoring in the commercial mills had not revealed the degree of contamination found in the present investigations.


Ingredient contamination was diverse and reflected the sources and storage environments used by mills and farms, respectively. The use of dust and spillage samples showed a clear sensitivity advantage over the previously-used monitoring methods in the feedmills.

Significance and Impact of Study:

Monitoring for Salmonella contamination of commercial feedmills requires sensitive methods, such as those employed in the present study. This is particularly important for endemic contamination.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Veterinary Medicine
Authors :
Davies, RH
Date : 13 May 2010
DOI : 10.1111/j.1365-2672.2010.04767.x
Copyright Disclaimer : This is the peer reviewed version of the following article: Davies, R.H., Wales, A.D., 2010. Investigations into Salmonella contamination in poultry feedmills in the United Kingdom. J. Appl. Microbiol. 109, 1430–40, which has been published in final form at This article may be used for noncommercial purposes in accordance with Wiley Terms and Conditions for Self- Archiving.
Depositing User : Melanie Hughes
Date Deposited : 24 Oct 2017 14:59
Last Modified : 24 Oct 2017 14:59

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