Moussa Sory Diarra, Ph.D.

Image Moussa Diarra
Research Scientist

Microbiology – Foof Safety - Animal Sciences

Current research and/or projects

Dr. Diarra’s research program closely aligns with two of AAFC's National research priorities: (1) Addressing threats to the agricultural and agri-food value chain; (2) Improving environmental performance of the Canadian Agricultural System. Dr. Diarra’s research on the molecular ecology of antimicrobial resistant and foodborne bacteria associated with livestock and poultry adds a unique dimension to AAFC’s overall research capability. Overall, his research evaluates the risk to human health associated with livestock and poultry production practices in Canada, and seeks to develop strategies to mitigate the contamination of food and the environment.

Research and/or project statements

  • Insects as sustainable feed ingredient for broiler
  • Fruit by-products to modulate gut microbiota in broiler chicken
  • Optimization of berry by-products use in organic poultry production chicken
  • GRDI-AMR Mitigation: ecology and alternatives to antibiotics in Poultry
  • On-farm evaluation of encapsulated essential oil
  • Butyrate with plant extracts to reduce the use of antibiotics in chicken production
  • Metabolic and Functional activities of bio-protective lactic cultures
  • Mitigation of antimicrobial resistance in poultry

Professional activities / interests

  • Molecular ecology of bacteria and antibiotic resistance in food production: Risk assessment, characterization of survival mechanisms and gut microbiota
  • Bacterial pathogenesis and development of alternatives to antibiotics: Natural products and vaccines
  • Sustainable poultry and livestock productions: conventional and organic

Education and awards

Ph.D. Microbiology - Immunology, Université Laval, 1995

Key publications

  1. Das, Q., Tang, J., Yin, X., Ross, K., Warriner, K., Marcone, M.F., Diarra, M.S. (2021). Organic cranberry pomace and its ethanolic extractives as feed supplement in broiler: impacts on serum Ig titers, liver and bursal immunity, 100(2), 517-526.

    2021 - View publication details

  2. 2020 Animal Nutrition Conference of Canada, Webinar Series, May 26-June 11.

    2020 - View publication details

  3. Yin Lau, A.T., Barbut, S., Ross, K., Diarra, M.S., Balamurugan, S. (2019). The effect of cranberry pomace ethanol extract on the growth of meat starter cultures, Escherichia coli O157:H7, Salmonella enterica serovar Enteritidis and Listeria monocytogenes, 115

    2019 - View publication details

  4. 2019 Annual Meeting of Poultry Science Association; July 15-18, Montreal, Quebec, Canada.

    2019 - View publication details

  5. 2019 ASAS-CSAS Annual Meeting and Trade Show; July 8-11, Austin, TX, USA.

    2019 - View publication details

  6. Das, Q., Lepp, D., Yin, X., Ross, K., McCallum, J.L., Warriner, K., Marcone, M.F., Diarra, M.S. (2019). Transcriptional profiling of Salmonella enterica serovar Enteritidis exposed to ethanolic extract of organic cranberry pomace, 14(7),

    2019 - View publication details

  7. Chekabab, S.M., Rehman, M.A., Yin, X., Carrillo, C., Mondor, M., Diarra, M.S. (2019). Growth of salmonella enterica serovars typhimurium and enteritidis in iron-poor media and in meat: Role of catecholate and hydroxamate siderophore transporters, 82(4), 548-560.

    2019 - View publication details

  8. Taggar, G., Rehman, M.A., Yin, X., Lepp, D., Ziebell, K., Handyside, P., Boerlin, P., Diarra, M.S. (2018). Antimicrobial-resistant E. Coli from surface waters in southwest Ontario dairy farms, 47(5), 1068-1078.

    2018 - View publication details

  9. 2018 ASAS-CSAS Annual Meeting & Trade Show; Vancouver, Canada, July 8-12, 2018.

    2018 - View publication details

  10. 2018 ASAS-CSAS Annual Meeting & Trade Show; Vancouver, Canada, July 8-12, 2018.

    2018 - View publication details

  11. 2017 Ontario Ministry of Agriculture, Food and Rural Affairs - FOOD SAFETY RESEARCH FORUM; October 20, Guelph, Ontario.

    2017 - View publication details

  12. Simmons, K., Islam, R., Rempel, H., Block, G.S., Topp, E., and Diarra, M.S. (2016 in press). "Antimicrobial Resistance of Escherichia fergusonii Isolated from Broiler Chickens.", Journal of Food Protection.

    2016 - View publication details

  13. Narvaez-Bravo, C., Toufeer, M., Weese, S.J., Diarra, M.S., Deckert, A.E., Reid-Smith, R., Aslam, M. (2016). Prevalence of methicillin-resistant Staphylococcus aureus in Canadian commercial pork processing plants, 120(3), 770-780.

    2016 - View publication details

  14. Yang, Y., Wang, Q., Diarra, M.S., Yu, H., Hua, Y., Gong, J. (2016). Functional assessment of encapsulated citral for controlling necrotic enteritis in broiler chickens, 95(4), 780-789.

    2016 - View publication details

  15. Diarra, M.S., Delaquis, P.J., Topp, E., McCallum, J.L., Ehret, D.L., Malouin, F., Gong, J., Brar, S.K., and Ross, K.A. (2015). Fruit Pomaces to Improve Immunity and Health of Organic Chickens. Project ID: AIP-CL02 – Organic Science Cluster II; Research Project Annual Report 2014-2015. AIP-CL02 – Organic Science Cluster II. (Report)

    2015 - View publication details

  16. Diarra, M.S. (2015). "Virulence and Antibiotic Resistance in Enterococci Associated with Poultry.", Seminar series, Guelph Food Research Center, Guelph, ON, Canada, May 7, 2015. (Presentation)

    2015 - View publication details

  17. Diarra, M.S. (2015). Media oral interviews Goldenwest Radio, MB, Canada: Dec. 23, 2015.

    2015 - View publication details

  18. Talbot, G., Yin, X., Service, C., Ziebell, K.A., Gagnon, N., Auffret, M., Topp, E., and Diarra, M.S. (2015). "Characterization of ceftiofur-resistant Escherichia coli isolated from dairy cattle manures.", 65th Annual Canadian Society of Microbiologists Annual Conference, University of Regina, Regina, Saskatchewan, Canada, June 15-18, 2015, AE37. (Poster)

    2015 - View publication details

  19. Gong, J., Wang, Q., and Diarra, M.S. (2015). "The potential of essential oils in controlling necrotic enteritis: Can encapsulation help?", 1st International Conference on Necrotic Enteritis in Poultry, Copenhagen, Denmark, June 10-12, 2015. (Abstract)

    2015 - View publication details

  20. Islam, R., Yin, X., Lepp, D., Topp, E., and Diarra, M.S. (2015). "Comparative genomics of Escherichia coli isolated from soil fertilized with litter of chicken fed with or without tetracycline.", 2015 International Association of Food Protection (IAFP), Portland, Oregon, USA, July 25-28, 2015. (Abstract)

    2015 - View publication details

Research facility

93 Stone Road West
Guelph, ON N1G 5C9


  • Adjunct Professor, Department of Biology, University of Sherbrooke
  • Adjunct Professor, Department of Animal Sciences, University of Manitoba
  • Graduate Faculty and Adjunct Professor, Department of Pathobiology, University of Guelph
  • Graduate Faculty, Department of Food Science, University of Guelph