Survival and transmission of Salmonella enterica serovar typhimurium in an outdoor organic pig farming environment

Applied and Environmental Microbiology
A N JensenDorte Lau Baggesen

Abstract

It was investigated how organic rearing conditions influence the Salmonella enterica infection dynamics in pigs and whether Salmonella persists in the paddock environment. Pigs inoculated with S. enterica serovar Typhimurium were grouped with Salmonella-negative tracer pigs. Bacteriological and serological testing indicated that organic pigs were susceptible to Salmonella infections, as 26 of 46 (56%) tracer pigs turned culture positive. An intermittent and mainly low-level excretion of Salmonella (<100 cells g-1) partly explains why the bacteriological prevalence appeared lower than the seroprevalence. Salmonella persisted in the paddock environment, as Salmonella was isolated from 46% of soil and water samples (n=294). After removal of pigs, Salmonella was found in soil samples for up to 5 weeks and in shelter huts during the entire test period (7 weeks). Subsequent introduction of Salmonella-negative pigs into four naturally Salmonella-contaminated paddocks caused Salmonella infections of pigs in two paddocks. In one of these paddocks, all tracer pigs (n=10) became infected, coinciding with a previous high Salmonella infection rate and high Salmonella excretion level. Our results showed that pigs reared under organic conditi...Continue Reading

References

Feb 1, 1983·Journal of Animal Science·F BlechaD A Nichols
Aug 15, 1994·Veterinary Microbiology·P J Fedorka-CrayK Lager
Jul 1, 1994·APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica·H C WegenerK Gaarslev
Jan 1, 1993·The Journal of Applied Bacteriology·T E KearneyP N Levett
May 1, 1997·Zentralblatt für Veterinärmedizin. Reihe B. Journal of veterinary medicine. Series B·I SchillerA Pospischil
May 20, 1997·International Journal of Food Microbiology·B R BerendsD A Mossel
Feb 1, 1997·Preventive Veterinary Medicine·J MousingS Bech-Nielsen
Jun 28, 1997·The Veterinary Record·J DahlD L Baggesen
May 9, 1998·Proceedings of the National Academy of Sciences of the United States of America·J BjörkmanD I Andersson
Apr 13, 2000·Preventive Veterinary Medicine·H StegeP Willeberg
Apr 11, 2001·Veterinary Microbiology·P J van der WolfM J Tielen
Aug 11, 2001·American Journal of Veterinary Research·H S HurdM H Rostagno
Jan 17, 2002·Veterinary Microbiology·Camilla WiuffPeter Lind
Apr 27, 2002·Applied and Environmental Microbiology·H S HurdM H Rostagno
Aug 16, 2002·Molecular Microbiology·Chakib MouslimEduardo A Groisman
Dec 24, 2002·Journal of Food Protection·David A BarberRonald M Weigel
Mar 19, 2003·Environmental Technology·J R Bicudo, S M Goyal
Jul 4, 2003·Applied and Environmental Microbiology·Mollie D Winfield, Eduardo A Groisman
Dec 5, 2003·Veterinary Microbiology·D M A Lo Fo WongA von Altrock
Sep 24, 2004·Bioresource Technology·Fiona A NicholsonBrian J Chambers

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Citations

Dec 2, 2010·Foodborne Pathogens and Disease·Peter R Davies
Jul 9, 2008·Applied and Environmental Microbiology·Jeri D BarakKoh-Eun Narm
Nov 1, 2011·Applied and Environmental Microbiology·Ursula RajtakSéamus Fanning
Apr 24, 2012·PloS One·Renata IvanekSusanna Sternberg Lewerin
Dec 30, 2011·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Tiffany M WolfRachel L Thompson
Apr 17, 2010·Microbial Ecology·Alexander M SemenovAriena H C van Bruggen
Oct 15, 2013·Applied and Environmental Microbiology·Zhiyuan YaoJianming Xu
Dec 30, 2015·Preventive Veterinary Medicine·Hayley E PearsonMarta Hernández-Jover
Aug 27, 2010·Risk Analysis : an Official Publication of the Society for Risk Analysis·Ilias Soumpasis, Francis Butler
Mar 24, 2016·Risk Analysis : an Official Publication of the Society for Risk Analysis·Andrew A HillEmma L Snary
May 13, 2015·Risk Analysis : an Official Publication of the Society for Risk Analysis·R R L SimonsE L Snary
Feb 27, 2015·Risk Analysis : an Official Publication of the Society for Risk Analysis·Andrew A HillEmma L Snary
May 18, 2012·Trends in Microbiology·Smita GopinathDenise Monack
Jun 26, 2013·Mathematical Biosciences·Alexander D C BerrimanRobert M Christley
Oct 22, 2013·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Karin A NybergAnn Albihn
Nov 6, 2018·Journal of Applied Microbiology·K A NybergJ Elving
Nov 30, 2018·Clinical Microbiology Reviews·Ohad Gal-Mor
Aug 21, 2019·Frontiers in Veterinary Science·Lucy A CoyneGina L Pinchbeck
May 16, 2017·Epidemiology and Infection·R P SmithR H Davies
Aug 15, 2020·Frontiers in Microbiology·Annette Nygaard JensenDorte Lau Baggesen
Jul 11, 2021·The Lancet. Planetary Health·Eleanor M ReesRachel Lowe

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