Ryan Breuer, DVM, DACVIM (LAIM)


Department of Medical Sciences
Office: 1224

Ryan Breuer, DVM, DACVIM (LAIM)

Titles and Education

  1. Diplomate of American College of Veterinary Internal Medicine, 2022
    Iowa State University College of Veterinary Medicine, Ames, IA
  2. Doctorate of Veterinary Medicine, 2012
    University of Wisconsin – Madison, Madison, WI
  3. Bachelor of Science, 2008
    Marian University, Fond du Lac, WI


Dr. Breuer holds a dual appointment at the University of Wisconsin – Madison, he is a Clinical Assistant Professor of Large Animal Internal Medicine at the UW School of Veterinary Medicine (UW-SVM) as well as a Diagnostic Case & Outreach Coordinator at the Wisconsin Veterinary Diagnostic Laboratory (WVDL). Dr. Breuer’s commitment to the UW-SVM is actively involved in the didactic, laboratory and clinical instruction of veterinary students in large animal internal medicine and food animal production medicine (FAPM).

Clinical Interests

Dr. Breuer’s teaching interest are in clinical large animal internal medicine, small ruminant medicine, concepts of AVMA approved humane euthanasia for large animal species, herd health investigations, and diagnostic/infectious disease consultation.

Graduate Training

Dr. Breuer received his veterinary degree from UW-Madison School of Veterinary Medicine and then completed a residency training program in Food Animal Internal Medicine at Iowa State University College of Veterinary Medicine.

Recent Publications

  1. Breuer, R. M., Riedesel, E. A., Fowler, J., Yaeger, M. J., Smith, J. S., & Kreuder, A. J. (2022). Ultrasonography and digital radiography findings in sheep with clinical disease associated with small ruminant lentivirus infection. The Canadian veterinary journal = La revue veterinaire canadienne63(4), 391–399.
  2. Chuback, C. S., Breuer, R. M., Deering, K. M., Long, L., & Elsmo, E. J. (2022). Meningeal worm infection in two Wisconsin wild elk. Veterinary Record Case Reports. https://doi.org/10.1002/vrc2.283
  3. Locklear, T. R., Videla, R., Breuer, R. M., Mulon, P. Y., Passmore, M., Mochel, J. P., Gerhold, R., Schaefer, J. J., Smith, J. S. (2021). Presentation, Clinical Pathology Abnormalities, and Identification of Gastrointestinal Parasites in Camels (Camelus bactrianus and Camelus dromedarius) Presenting to Two North American Veterinary Teaching Hospitals. A Retrospective Study: 1980-2020. Front Vet Sci. 2021;8:651672. Published 2021 Mar 22. doi:10.3389/fvets.2021.651672
  4. Smith, J. S., Viall, A. K., Breuer, R. M., Walton, R. A., Plummer, P., Griffith, R. W., Kreuder, A. J. (2021). Preliminary Investigation of Bovine Whole Blood Xenotransfusion as a Therapeutic Modality for the Treatment of Anemia in Goats. Frontiers in Veterinary Science. 2021; 8:637988. DOI: 10.3389/fvets.2021.637988. PMID: 33748213; PMCID: PMC7969644.
  5. Smith, J., Breuer, R., Kreuder, A., Merkatoris, P., Yaeger, M. (2020), Traumatic pericarditis in a dairy doe. Vet Rec Case Rep, 8: e001067. https://doi.org/10.1136/vetreccr-2020-001067
  6. Copeland, A., Speckels, A., Merkatoris, P., Breuer, R. M., Schleining, J. A., & Smith, J. (2020). Laser ablation and management of a retropharyngeal abscess caused by Corynebacterium pseudotuberculosis in a ram. Veterinary Record Case Reports, 8(2). https://doi.org/10.1136/vetreccr-2019-001010
  7. Smith, J., Breuer, R., Kreuder, A., Merkatoris, P., & Yaeger, M. (2020). Traumatic pericarditis in a dairy doe. Veterinary Record Case Reports, 8(3). https://doi.org/10.1136/vetreccr-2020-001067
  8. Smith J. S., Zhou X., Merkatoris P. T., Klostermann C. A., Breuer R. M. (2019) Medical Management of Hemorrhagic Bowel Syndrome in a Beef Bull. Case Reports in Veterinary Medicine, Article ID 9209705. https://doi.org/10.1155/2019/9209705.
  9. Breuer R. M., Merkatoris P. T., Tepley S., Klostermann C. A., Dierks C., Flaherty H., Smith J.S. (2018) Treatment of cerebrospinal nematodiasis in a Boer Buck. Veterinary Record Case Report. Published Online: [19.11.2018] doi:10.1136/vetreccr-2018-000706 ** Article featured in AASRP Newsletter, July-September 2019; 47(3)
  10. A complete listing of all published works can be found here : https://orcid.org/0000-0001-9439-102X