Relationships among Microbial Communities in Pigs

Today, we are sharing a recent article published in the journal Microorganisms by Dr. Valeris-Chacin and the MycoLab. The publication, available in open access, focuses on the relationships among fecal, air, oral, and tracheal microbial communities in pigs.

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Multiple vaccinations: what effect on M. hyopneumoniae infection?

Dr. Betlach and the team from the MycoLab recently published a study in the journal Vaccine, regarding the impact of multiple vaccines against Mycoplasma hyopneumoniae. They assessed bacterial load and protection against infection in gilts.


  • Vaccination against M. hyopneumoniae reduced bacterial load in infected gilts.
  • Vaccination of both infected and contact gilts reduced M. hyopneumoniae transmission.
  • Genetic diversity of M. hyopneumoniae was not influenced by vaccination.
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The 5 best blog posts in 2020

For our first article of 2021, the UMN swine group would like to wish you all the best for this new year. May it bring you a lot of joy and peace. As we reflect on 2020, we would like to share the posts that were your favorite as well as a few gems that you might have missed. We hope that you enjoy reading this selection and we will come back on Friday with our usual Science Page feature. As always, thank you for reading this page and for supporting us.

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Contemporary North American Mycoplasma hyopneumoniae MICs

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

This week, the MycoLab at the University of Minnesota shares results from a project looking at Mycoplasma hyopneumoniae Minimum Inhibitory Concentrations (MICs) from various US isolates.

Key points

  • Antibiotic susceptibility profiles of eleven M. hyopneumoniae isolates circulating in the US within the most recent six years were obtained. 
  • Overall, a high in vitro efficacy of the tested antimicrobials against M. hyopneumoniae field isolates was observed.
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Mycoplasmas in swine: a new comprehensive book

Dr. Maria Pieters, head of the MycoLab at the University of Minnesota has edited, in collaboration with Drs. Dominiek Maes and Marina Sibila, a newly published book on swine Mycoplasmas. Mycoplasmas in Swine provides up-to-date scientific, clinical and practical information useful to scientists and veterinarians alike. Most emphasis has been placed on Mycoplasma hyopneumoniae, as this is economically the most important Mycoplasma sp. in swine. However, other pathogenic species like Mycoplasma hyorhinis, Mycoplasma hyosynoviae and Mycoplasma suis are discussed.

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