Observations on the distribution of Salmonella on primary pig breeding farms

dc.contributor.author Davies, Robert
dc.contributor.author McLaren, I.
dc.contributor.author Wales, A.
dc.contributor.author Bedford, S.
dc.date 2018-08-13T18:14:49.000
dc.date.accessioned 2020-07-02T06:20:56Z
dc.date.available 2020-07-02T06:20:56Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2007
dc.date.issued 2007-01-01
dc.description.abstract <p>Salmonella infection in pigs has emerged as an important potential public health issue in recent years and several countries have introduced monitoring and control programmes. However, the Salmonella status of most primary breeding herds remains unknown. This paper describes the results of intensive sampling carried out on four occupied primary pig breeding farms and one breeding farm which was purchased and cleaned and disinfected before being used for primary breeding. All premises were sampled intensively by taking large gauze swab samples from every pen of breeding sows, boars and rearing gilt and boar progeny. Samples of equipment and faeces plus carcases of wildlife vectors were also collected. On one farm (A) S. Derby, S. Kedougou and S. Newport were found in all locations whereas S. Typhimurium (DT1 04, DT20) was restricted to gilts retained for the herd and gilts and boars being reared for sale. There was considerable involvement of rodents and evidence of ineffective disinfection of farrowing crates. On a second farm (B), owned by the same company, there were similar findings, with S. Meleagridis also present. Improvements to rodent control but not disinfection produced no reduction in the overall prevalence of Salmonella. On two other farms, belonging to a separate company, S. Give predominated in adult breeding stock and rearing gilts and boars but some S. Typhimurium (OT1 04, DT193) was also present in the young stock on the larger unit (C). In the smaller unit (D), in which hygiene and rodent control was much better, only S. Give and S. Kedougou were found. In another farm (E) S. Stanley, S. Bredeney, S. Mbandaka and S. Typhimurium were found before total depopulation. Cleaning and disinfection was poor initially but successful after improvements, but no sampling was permitted in the new primary breeding herd by the new owners of the arm.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/safepork/2007/allpapers/26/
dc.identifier.articleid 1060
dc.identifier.contextkey 6010963
dc.identifier.doi https://doi.org/10.31274/safepork-180809-21
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath safepork/2007/allpapers/26
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/83844
dc.language.iso en
dc.relation.ispartofseries International Conference on the Epidemiology and Control of Biological, Chemical and Physical Hazards in Pigs and Pork
dc.source.bitstream archive/lib.dr.iastate.edu/safepork/2007/allpapers/26/2007_DaviesRH_ObservationsDistributionSalmonella.pdf|||Fri Jan 14 23:00:24 UTC 2022
dc.subject.disciplines Epidemiology
dc.subject.disciplines Veterinary Preventive Medicine, Epidemiology, and Public Health
dc.title Observations on the distribution of Salmonella on primary pig breeding farms
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication aab46b45-e596-479d-af7f-e072b1599cd7
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