The ACER team


    2014 | Doctor of Philosophy (PhD) in Epidemiology

  • Department of Population Medicine, Ontario Veterinary College, University of Guelph

    2010 | Master of Science (MSc) in Epidemiology

  • Department of Population Medicine, Ontario Veterinary College, University of Guelph

    2009 | Bachelor of Science (BSc Honours) in Zoology

  • Department of Integrative Biology, Biological Sciences, University of Guelph

Steven Roche

Director and Principal Consultant

Steven is the Director and Principal Consultant for ACER Consulting, and has a vision for improving animal health through applied research and creative communication. ACER is driven by his passion and interdisciplinary skill set, which blends epidemiological research, agricultural extension, and health promotion. His mission is to develop and deliver evidence-based solutions to motivate on-farm change, and improve animal health and welfare.

Steven earned his PhD in epidemiology from the Department of Population Medicine at the Ontario Veterinary College. His research explored novel approaches to improve the adoption of on-farm management practices to control Johne’s disease in the Ontario dairy industry. He also holds a MSc in epidemiology and BSc in zoology from the University of Guelph.

Through his formal training and applied research experience, Steven is a well-rounded researcher equipped with the skill set, drive, and collaborative spirit to help his clients understand, inform, and influence.


  • Shock, D.A., Roche, S.M., Genore, R., and Olson M.E. 2019. A Pilot Study To Evaluate The Effect Of A Novel Calcium And Vitamin D-Containing Oral Bolus On Serum Calcium Levels In Holstein Dairy Cows Following Parturition. Veterinary Medicine: Research and Reports. 10:151-158.

  • Roche, S.M., Von Massow, M., Renaud, D.L., Shock, D.A., Jones-Bitton, A.Q., and Kelton, D.F. 2019. Cost-benefit for implementation of a participatory extension model for improving on-farm adoption of Johne’s disease control recommendations. J. Dairy Sci. (In press).

  • Shock, D.A., Roche, S.M., Olson, M.E. 2019. A comparative pharmacokinetic analysis of oral and subcutaneous meloxicam, administered to postpartum dairy cows. Vet. Sci. 6(3):73.

  • Shock, D.A., Roche, S.M., Genore, R.L., Renaud, D.L., 2019. Exploring the economic impact that registered veterinary technicians have on Ontario veterinary practices. Can. Vet. J. (In press).

  • Renaud, D.L, Skidmore, A., Roche, S.M., Steele, M.A., Shock, D.A., 2019. Evaluation of Saccharomyces cerevisiae boulardii CNCM I-1079 fed pre-weaning on health and growth of male dairy calves. App. Ani. Sci.  (In press).

  • Sherwood, L., Wilson, A., South, C., Roche, S., and Luszcz, L. 2019. Perceptions of veterinarians in British Columbia of cat management strategies to reduce cat overpopulation and impacts on wildlife populations. Anthrozoös.  32(5):613-629.

  • Saini, M., Roche, S., Markwick, N., Papadapolous, A., Shiwak, I., Flowers, C., Wood, M., Edge, V., Ford, J., and Harper, S. 2019. Promoting Inuit health through a participatory whiteboard video. Canadian Journal of Public Health. 1-10.

  • Roche, S.M., Kelton, D.F., Meehan, M., Von Massow, M., and Jones-Bitton, A.Q. 2019. Exploring dairy producer and veterinarian perceptions of motivators to adopting on-farm management practices for Johne’s disease control in Ontario, Canada. J. Dairy Sci. 102(5):4476-4488.

  • McAloon, C.G., Roche, S.M., Ritter, C., Barkema, H.W., Whyte, P., More, S.J., O’Grady, L., Green, M.J., and Doherty, M.L. 2019. A review of paratuberculosis in dairy herds – Part 1: Epidemiology. The Veterinary Journal. 246:59-65.

  • McAloon, C.G., Roche, S.M., Ritter, C., Barkema, H.W., Whyte, P., More, S.J., O’Grady, L., Green, M.J., and Doherty, M.L. 2019. A review of paratuberculosis in dairy herds – Part 2: On-farm control. The Veterinary Journal. 246:54-58.

  • Shock, D.A., Renaud, D.L., Roche, S.M., Poliquin, R., and Olsen, M.E. 2018. Evaluating the impact of meloxicam oral suspension on subsequent production, health, and culling in dairy cows: a randomized clinical field trial. PLOS One.

  • Barkema, H.W., Orsel, K., Nielsen, S.S., Koets, A.P., Rutten, V.P., Bannantine, J., Keefe, G.P., Kelton, D.F., Wells, S.J., Whittington, R.J., Mackintosh, C.G., Manning, E.J., Weber, M.F., Heuer, C., Forde, T., Ritter, C., Roche, S.M., Corbett, C., Wolf, R., Kastelic, J.P., and De Buck, J. 2017. Knowledge gaps that hamper prevention and control of Mycobacterium avium subspecies paratuberculosis infection. Trans. and Emer. Dis. 65:125-148.

  • Ritter, C., Jansen, J., Roche, S.M., Kelton, D.F., Adams, C.L., Orsel, K., Erskine, R.J., Benedictus, G. Lam, T.J.G.M., and Barkema, H.W. 2017. Invited review: Determinants of farmers’ adoption of management-based strategies for infectious disease prevention and control. J. Dairy Sci. 100(5):3329-3347.

  • Roche, S.M., Jones-Bitton, A., Meehan, M., Von Massow, M. and Kelton, D. F. 2015. Evaluating Focus Farms’ impact on Ontario dairy producer knowledge, perceptions, attitudes and behavior towards Johne’s disease control. J. Dairy Sci. 98(8): 5222-5240.

  • Johnson, R., Holtslander, B., Marzucco, A., Roche, S., Thomas, J., Pollari, F., Pintar, K.D.M. 2014. Detection and prevalance of verotoxin-producing Escherichia coli and non O157 serotypes in a Canadian watershed. Appl. Environ. Microbiol. 80(7):2166.

  • Roche, S.M., Jones-Bitton, A., Majowicz, S.E., Pintar, K.D.M. and Allison, D. 2013. Investigating public perceptions and knowledge translation priorities for residents with private water supplies to improve water safety: A Newfoundland and Labrador case study. BMC Public Health. 23(13):1225.

  • Roche, S.M., Jones, A.Q., Majowicz, S.E., McEwen, S.A. and Pintar, K.D.M. 2012. Drinking water consumption patterns in Canadian communities (2001-2007). J. Water Health. 10(1):69-86.


Service & Leadership

Memberships & Associations

  • American Dairy Science Association

  • Canadian Animal Health Institute

  • Ontario Livestock and Poultry Association

  • Canadian Society for Epidemiology and Biostatistics

  • Canadian Knowledge Transfer and Exchange Community of Practice

  • Guelph Knowledge Translation & Transfer (KTT) Community of Practice

We have a passion for agriculture and agri-food and believe in studying health and disease through a one health lens.

Agricultural Communications &
Epidemiological Research

Understand. Inform. Influence.

We are a collaborative group, keen to work with like-minded partners across the globe. Want to explore a problem, project, or opportunity?

Let's Talk