Dr. Renée M Petri

Image Renee M. Petri
Research Scientist Gastrointestinal Microbiome

The application of multi-omics approaches to the tracking and assessment of the gastrointestinal microbiome for rumen, GIT and animal health. To evaluate the impact of feed, feed-management and feed additives on AMR, host-microbe crosstalk, immunity and the mitigation of production related diseases.

Current research and/or projects

My current projects are based on understanding the feed-microbiome-host interactions, specifically with regard to developing knowledge in the area of animal and rumen health. The diverse approaches used in these studies make use of the ever increasing molecular and bioinformatic tools available and have applied knowledge and techniques from human medical research to improve the health and sustainability of animal agriculture.

Research and/or project statements

- Role of the gastrointestinal microbiome in animal immunity and productivity

- Evaluate feed management in transition on metabolic disorders, rumen dysbiosis and immunity

- Determining the impact of the energy to protien ratio in forages on the adherent ruminal microbes and their metabolism

- Impact of feed additives on the host-microbiome crosstalk

Professional activities / interests

Associate Editor Canadian Journal of Animal Science

Education and awards

Ph.D. Nutritional Microbiology, University of Saskatchewan, 2013

M.S.c Ruminant Nutrition, University of Saskatchewan, 2009

B.S.c Animal Science, University of Alberta, 2005


Young Researcher Development Program 2015-2019, 260,000€

University of Saskatchewan MSc Scholarship 2006-2007, $10,000

International experience and/or work

Research Group Leader Feed-Gut-Microbiome, University of Veterinary Medicine, Vienna 2019-2020

Post Doctoral Researcher Host-Microbiome Interactions, University of Veterinary Medicine, Vienna, 2015-2019

Contract Research Scientist, Bioinformatics, Agriculture and Agri-Food Canada, 2013-2015

Key publications

  1. Poulin, A-A., Hassanat, F., Tremblay, G., Ouellet, D., Petri, R., Thériault, M., Claessens, A., Bertrand, A. et Charbonneau, É. 2022. Variation of the alfalfa energy-to-protein ratio to maximize nitrogen use efficiency by rumen microbes. ADSA Annual Meeting, June 25-28, 2023, Ottawa, ON, Canada [poster] and J. Dairy Sci. 106(Suppl. 1): 1133M. [Abstract]

    2023 - View publication details

  2. Poulin, A-A., Hassanat, F., Tremblay, G., Ouellet, D., Petri, R., Thériault, M., Claessens, A., Bertrand, A. et Charbonneau, É. 2023. L’efficacité d’utilisation de l’azote par les microbes du rumen est affectée par le ratio énergie/protéines de la luzerne. Journée d'information scientifique sur les bovins laitiers et les plantes fourragères. 8 février 2023, Drummondville, QC. CRAAQ [affiche]

    2023 - View publication details

  3. 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

  4. Poulin, A-A., Hassanat, F., Tremblay, G., Ouellet, D., Petri, R., Thériault, M., Claessens, A., Bertrand, A. et Charbonneau, É. 2022.Variation du ratio énergie/protéines de la luzerne pour maximiser l’efficacité de l’utilisation de l’azote par les microbes du rumen. Symposium sur les bovins laitiers, 2 novembre 2022, Drummondville, QC. CRAAQ.

    2022 - View publication details

  5. Lupwayi, N.Z., May, W.E., Kanashiro, D.A., Petri, R.M. (2018). Soil bacterial community responses to black medic cover crop and fertilizer N under no-till. Applied Soil Ecology, [online] 124 95-103. http://dx.doi.org/10.1016/j.apsoil.2017.11.003

    2018 - View publication details

  6. Lupwayi, N.Z., Larney, F.J., Blackshaw, R.E., Kanashiro, D.A., Pearson, D.C., Petri, R.M. (2017). Pyrosequencing reveals profiles of soil bacterial communities after 12 years of conservation management on irrigated crop rotations. Applied Soil Ecology, [online] 121 65-73. http://dx.doi.org/10.1016/j.apsoil.2017.09.031

    2017 - View publication details

  7. Petri, R.M., Mapiye, C., Dugan, M.E.R., McAllister, T.A. (2014). Subcutaneous adipose fatty acid profiles and related rumen bacterial populations of steers fed red clover or grass hay diets containing flax or sunflower-seed. PLoS ONE, [online] 9(8), http://dx.doi.org/10.1371/journal.pone.0104167

    2014 - View publication details

  8. Petri, R.M., Schwaiger, T., Penner, G.B., Beauchemin, K.A., Forster, R.J., McKinnon, J.J., McAllister, T.A. (2013). Characterization of the core rumen microbiome in cattle during transition from forage to concentrate as well as during and after an acidotic challenge. PLoS ONE, [online] 8(12), http://dx.doi.org/10.1371/journal.pone.0083424

    2013 - View publication details

  9. Petri, R.M., Forster, R.J., Yang, W., McKinnon, J.J., McAllister, T.A. (2012). Characterization of rumen bacterial diversity and fermentation parameters in concentrate fed cattle with and without forage. Journal of Applied Microbiology, [online] 112(6), 1152-1162. http://dx.doi.org/10.1111/j.1365-2672.2012.05295.x

    2012 - View publication details

Research facility

2000 College Street
Sherbrooke, QC J1M 0C8


Member of the American Society of Animal Science and the Austrian Microbiome Initiative

Adjunct Professor, Dalhousie University




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