Devin Holman, Ph.D.

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.
Additional links
Key publications
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Yang, Xianqin, Hui Wang, Scott Hrycauk, Devin B. Holman, and Tim C. Ells. 2023. "Microbial Dynamics in Mixed-Culture Biofilms of Salmonella Typhimurium and Escherichia coli O157:H7 and Bacteria Surviving Sanitation of Conveyor Belts of Meat Processing Plants" Microorganisms 11, no. 2: 421. https://doi.org/10.3390/microorganisms11020421
2023 - View publication details
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Liu, X.; Floate, K.D.; Gorzelak, M.A.; Holman, D.B.; Hrycauk, S.; Kubota, H.; Lupwayi, N.; Neilson, J.A.D.; Ortega Polo, R.; Petri, R.M.; Tran, L.; Wang, H.; Wilches, D.; Yang, X.; Zorz, J.; Guarna, M.M. Prairie Agroecosystems: Interconnected Microbiomes of Livestock, Soil and Insects. Agriculture 2023, 13, 326. https://doi.org/10.3390/agriculture13020326
2023 - View publication details
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Zhang, P., Ruan, E., Holman, D.B., Yang, X. (2022). Effects of a Carnobacterium maltaromaticum strain at natural contamination levels on the microbiota of vacuum-packaged beef steaks during chilled storage. Food Science and Technology - LWT, [online] 168 http://dx.doi.org/10.1016/j.lwt.2022.113944
2022 - View publication details
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Holman, D.B., Kommadath, A., Tingley, J.P., Abbott, D.W. (2022). Novel Insights into the Pig Gut Microbiome Using Metagenome-Assembled Genomes. Microbiology Spectrum, [online] 10(4), http://dx.doi.org/10.1128/spectrum.02380-22
2022 - View publication details
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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
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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
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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. Meat Science, [online] 159 http://dx.doi.org/10.1016/j.meatsci.2019.107938
2020 - View publication details
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
Contact
Research facility
Expertise
Affiliations
• American Society for Microbiology
• Canadian Society of Microbiologists
• Canadian Society of Animal Science