Devin Holman, Ph.D.

Research Scientist

Livestock Microbiology

Current research and/or projects

  • Understanding the dynamics of the swine gut microbiome in response to perturbations and weaning.
  • Sow milk microbiome and resistome
  • Developing antimicrobial alternatives for use in swine production.
  • Nasopharyngeal microbiome of beef cattle and the development of bovine respiratory disease.

Professional activities / interests

Editorial Board Member, Applied and Environmental Microbiology. 2020-present. 

Vice-chair, Lacombe Research and Development Centre Animal Care Committee. 2021-present.

Western Director, Canadian Society of Animal Science. 2022-present.

Chair, Lacombe Research and Development Centre Animal Care Committee, 2018-2021.

Education and awards

Ph.D., Microbiology, McGill University

M.Sc., Food Microbiology, Dalhousie University

B.Sc. (Hons.), Environmental Biology, Nova Scotia Agricultural College (Dalhousie University)                       

International experience and/or work

ORISE Postdoctoral Fellow, United States Department of Agriculture, National Animal Disease Center, Ames, IA, USA, 2016-17.

Key publications

  1. Holman, D.B., Gzyl, K.E., Mou, K.T., Allen, H.K. (2021). Weaning age and its effect on the development of the swine gut microbiome and resistome. mSystems, [online] 6(6), http://dx.doi.org/10.1128/mSystems.00682-21

    2021 - View publication details

  2. Holman, D.B., Klima, C.L., Gzyl, K.E., Zaheer, R., Service, C., Jones, T.H., McAllister, T.A. (2021). Antimicrobial Resistance in Enterococcus Spp. Isolated from a Beef Processing Plant and Retail Ground Beef. Microbiology Spectrum, [online] 9(3), http://dx.doi.org/10.1128/Spectrum.01980-21

    2021 - View publication details

  3. Yang, X., Wang, H., Badoni, M., Zawadski, S., McLeod, B., Holman, D., Uttaro, B. (2020). Effects of a novel three-step sous-vide cooking and subsequent chilled storage on the microbiota of beef steaks, 159 http://dx.doi.org/10.1016/j.meatsci.2019.107938

    2020 - View publication details

  4. Klima, C.L., Holman, D.B., Ralston, B.J., Stanford, K., Zaheer, R., Alexander, T.W., McAllister, T.A. (2019). Lower Respiratory Tract Microbiome and Resistome of Bovine Respiratory Disease Mortalities. Microbial Ecology, [online] 78(2), 446-456. http://dx.doi.org/10.1007/s00248-019-01361-3

    2019 - View publication details

  5. Holman, D.B., Yang, W., Alexander, T.W. (2019). Antibiotic treatment in feedlot cattle: A longitudinal study of the effect of oxytetracycline and tulathromycin on the fecal and nasopharyngeal microbiota. Microbiome, [online] 7(1), http://dx.doi.org/10.1186/s40168-019-0696-4

    2019 - View publication details

  6. Holman, D.B., Gzyl, K.E. (2019). A meta-analysis of the bovine gastrointestinal tract microbiota. FEMS Microbiology Ecology, [online] 95(6), http://dx.doi.org/10.1093/femsec/fiz072

    2019 - View publication details

  7. Holman, D.B., Bearson, B.L., Allen, H.K., Shippy, D.C., Loving, C.L., Kerr, B.J., Bearson, S.M.D., Brunelle, B.W. (2019). Chlortetracycline enhances tonsil colonization and fecal shedding of multidrug-resistant Salmonella enterica serovar typhimurium DT104 without major alterations to the porcine tonsillar and intestinal microbiota. Applied and Environmental Microbiology, [online] 85(4), http://dx.doi.org/10.1128/AEM.02354-18

    2019 - View publication details

  8. Holman, D.B., Timsit, E., Booker, C.W., Alexander, T.W. (2018). Injectable antimicrobials in commercial feedlot cattle and their effect on the nasopharyngeal microbiota and antimicrobial resistance. Veterinary Microbiology, [online] 214 140-147. http://dx.doi.org/10.1016/j.vetmic.2017.12.015

    2018 - View publication details

  9. Huang, Q., Holman, D.B., Alexander, T., Hu, T., Jin, L., Xu, Z., McAllister, T.A., Acharya, S., Zhao, G., Wang, Y. (2018). Fecal microbiota of lambs fed purple prairie clover (Dalea purpurea Vent.) and alfalfa (Medicago sativa). Archives of Microbiology, [online] 200(1), 137-145. http://dx.doi.org/10.1007/s00203-017-1427-5

    2018 - View publication details

  10. Holman, D.B., Timsit, E., Amat, S., Abbott, D.W., Buret, A.G., Alexander, T.W. (2017). The nasopharyngeal microbiota of beef cattle before and after transport to a feedlot. BMC Microbiology, [online] 17(1), http://dx.doi.org/10.1186/s12866-017-0978-6

    2017 - View publication details

  11. Holman, D.B., Hao, X., Topp, E., Yang, H.E., Alexander, T.W. (2016). Effect of co-composting cattle manure with construction and demolition waste on the archaeal, bacterial, and fungal microbiota, and on antimicrobial resistance determinants. PLoS ONE, [online] 11(6), 1-21. http://dx.doi.org/10.1371/journal.pone.0157539

    2016 - View publication details

  12. Timsit, E., Workentine, M., Schryvers, A.B., Holman, D.B., van der Meer, F., Alexander, T.W. (2016). Evolution of the nasopharyngeal microbiota of beef cattle from weaning to 40 days after arrival at a feedlot. Veterinary Microbiology, [online] 187 75-81. http://dx.doi.org/10.1016/j.vetmic.2016.03.020

    2016 - View publication details

  13. Holman, D.B., Timsit, E., Alexander, T.W. (2015). The nasopharyngeal microbiota of feedlot cattle. Scientific Reports, [online] 5 http://dx.doi.org/10.1038/srep15557

    2015 - View publication details

  14. Holman, D.B., McAllister, T.A., Topp, E., Wright, A.D.G., Alexander, T.W. (2015). The nasopharyngeal microbiota of feedlot cattle that develop bovine respiratory disease. Veterinary Microbiology, [online] 180(1-2), 90-95. http://dx.doi.org/10.1016/j.vetmic.2015.07.031

    2015 - View publication details

Research facility

6000 C and E Trail
Lacombe, AB T4L 1W1
Canada

Affiliations

• American Society for Microbiology
• Canadian Society of Microbiologists

• Canadian Society of Animal Science

Language

English