The distribution of Mycobacterium avium ssp. paratuberculosis in the environment surrounding Minnesota dairy farms

Journal of Dairy Science
Eran A RaizmanK E Olsen

Abstract

The objective of this study was to characterize the distribution of Mycobacterium paratuberculosis (Map) in the environment of infected and uninfected Minnesota dairy farms. Eighty herds known to be infected from Minnesota's Johne's Disease Control Program (JDCP) and 28 herds known to be uninfected from Minnesota Voluntary Johne's Disease Herd Status Program (VJDHSP) were sampled. Fecal samples from up to 100 cows in each herd were cultured in pools of 5 cows. Two environmental samples were obtained from each farm from various locations. All samples were tested using bacterial culture for Map. Eighty percent of the JDCP herds had at least one positive pool. Environmental samples were cultured positive in 78% of the JDCP herds. Two (7%) of the VJDHSP herds had one positive pool, and one herd had one positive environmental sample. Environmental samples were cultured positive in cow alleyways (77% of the herds), manure storage (68%), calving area (21%), sick cow pen (18%), water runoff (6%), and postweaned calves areas (3%). There was an association between maximum level of colonies per tube from cow alleyways and manure storage and fecal pool prevalence. Herds with both areas cultured negative were estimated to have 0.3 to 4% fec...Continue Reading

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Citations

Aug 4, 2006·Applied and Environmental Microbiology·Janin StratmannGerald-F Gerlach
Jul 27, 2010·Applied and Environmental Microbiology·Susanne W F EisenbergMirjam Nielen
Sep 18, 2012·Applied and Environmental Microbiology·Robert S DunganApril B Leytem
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Nov 4, 2015·Annual Review of Animal Biosciences·Lingling LiVivek Kapur
Mar 29, 2014·Critical Reviews in Microbiology·Geoffrey N ElliottColin D Campbell
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Feb 28, 2009·The Veterinary Journal·Peter A Windsor, Richard J Whittington
Jun 16, 2015·Journal of Dairy Science·A B Garcia, L Shalloo
Jul 5, 2006·Nature Clinical Practice. Gastroenterology & Hepatology·R Balfour Sartor
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Feb 12, 2009·Letters in Applied Microbiology·C H BolsterS L Walker
Jun 21, 2015·Veterinary Research·Robert WolfHerman Wildrik Barkema

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