Sub-Iliac Lymph Nodes at Slaughter Lack Ability to Predict Salmonella enterica Prevalence for Swine Farms Wang, Bing O'Connor, Annette Welsey, Irene McKean, James O'Connor, Annette
dc.contributor.department Veterinary Diagnostic and Production Animal Medicine 2018-02-17T01:42:53.000 2020-07-07T05:13:12Z 2020-07-07T05:13:12Z 2010-01-01
dc.description.abstract <p>The aim of this study was to assess the value of deep systemic sub-iliac lymph nodes collected at slaughter as predictors of Salmonella prevalence in live hogs.An observational study was conducted on 24 farms fromSeptember 2006 to February 2009. At least one cohort of market-weight pigs was visited for each farm. Within each cohort, 30 farm fecal samples on farm and 30 sub-iliac lymph nodes from matched pigs at slaughter were collected. Samples were cultured for Salmonella enterica and serotyped by conventionalmethods. Overall, 3.4%(51 of 1490) of farmfeces and 0.06% (1 of 1739) of sub-iliac lymph nodes were Salmonella positive; 71.4% (15 of 21) of farms had at least one positive fecal sample, and 4.2% (1 of 24) had at least one positive sub-iliac lymph node. The median within-farm prevalence of Salmonella in farm fecal samples was 1.7%, ranging from 0% to 38.3%; for sub-iliac lymph nodes the median was 0%, ranging from 0% to 1.1%. The median within-cohort prevalence in farm fecal samples was 0%, ranging from0%to 43.3%; for sub-iliac lymph nodes the median was 0%, ranging from0%to 4%. The predominant serotype detected was Derby, followed by Anatum and Typhimurium (Copenhagen). Salmonella Braenderup was recovered from the sub-iliac lymph node. The low detection rate of Salmonella in sub-iliac lymph nodes (0.06%) limits its usefulness as a dependable predictor of Salmonella contamination originating on farm (3.4%).</p>
dc.description.comments <p>This article is from <em>Foodborne Pathogens and Disease</em> 7 (2010): 795, doi:<a href="" target="_blank">10.1089=fpd.2009.0459</a>.</p>
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dc.identifier archive/
dc.identifier.articleid 1020
dc.identifier.contextkey 7649008
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath vdpam_pubs/19
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 21:49:51 UTC 2022
dc.source.uri 10.1089=fpd.2009.0459
dc.subject.disciplines Large or Food Animal and Equine Medicine
dc.subject.disciplines Veterinary Pathology and Pathobiology
dc.subject.disciplines Veterinary Preventive Medicine, Epidemiology, and Public Health
dc.subject.keywords predictors
dc.subject.keywords Salmonella
dc.subject.keywords swine
dc.subject.keywords lymph
dc.title Sub-Iliac Lymph Nodes at Slaughter Lack Ability to Predict Salmonella enterica Prevalence for Swine Farms
dc.type article
dc.type.genre article
dspace.entity.type Publication
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