Tracey Chenier

Tracey Chenier

Associate Professor

DVM, DVSc, Diplomate ACT
 Office: Stewart Bldg. 2545
 519-824-4120 Ext. 54789


Tracey is a 1992 graduate of the Ontario Veterinary College. She spent 2-1/2 years in mixed animal practice before returning to OVC for graduate studies in Theriogenology. She was Board-Certified by the American College of Theriogenologists in 1996. Following completion of her DVSc graduate program, she returned to private practice, operating her own equine practice for the next 5 years. In the fall of 2002 she returned to OVC as a faculty member in the Department of Population Medicine, Theriogenology group.

Research Interests

My research interests are in the filed of equine reproduction. Current research areas include causes of abortion in mares and persistent-breeding induced endometritis.  Previous areas of research include embryo transfer and and embyro and semen cryopreservation in horses.

Current projects include:

Seroprevalence of Neospora caninum in Ontario broodmares and its possible role in equine abortion.

N-acetylcysteine as a treatment for persistent-breeding induced endometritis in the mare.

Development of diagnostic reasoning skills in recent veterinary graduates.

Graduate Students

Olivia Johns

Ana-Maria Gil Miranda

Joaquin Parades Osorio


Research Interests

Our Theriogenology service at the Ontario Veterianary College offers a wide range of clinical reproduction services for virtually all species. My primary focus is Equine Theriogenology, including breeding soundness evaluations, frozen semen Al, semen cryopreservation, embryo transfer, fetal sexing, pregnancy monitoring and more.



Theriogenology rotations provide students with hands-on opportunities to learn, practice and master common reproductive techniques, including ultrasonography.

  • 4th year student Theriogenology Rotations
  • 4th year student Equine Primary Care Rotations
  • VETMED 346 Theriogenology -Phase 2
  • VETMED 453 Equine Health Management
  • POPM 663 Theriogenology of Horses Graduate Course

Selected Publications

Letter to the Editor: Is it time to replace the term 'endometrosis'?

Khan FA, Chenier TS.Equine Vet J. 2020 Jan;52(1):160. doi: 10.1111/evj.13172. Epub 2019 Sep 23.

Analysis of the uterine flush fluid proteome of healthy mares and mares with endometritis or fibrotic endometrial degeneration.  Mariana Diel de Amorim, Firdous A. Khan, Tracey S. Chenier, Elizabeth L. Scholtz and M. Anthony Hayes.  Reproduction, Fertility and Development,  January 2020.

Qualitative analysis and functional classification of the uterine proteome of mares in estrus and diestrus.

Khan FA, Diel de Amorim M, Chenier TS.Reprod Domest Anim. 2020 Aug 9. doi: 10.1111/rda.13800. Online ahead of print

The Effects of Treatment with N-Acetyl Cysteine on Clinical Signs in Persistent Breeding-Induced Endometritis Susceptible Mares.  Michelle D. Caissie; Cathy J. Gartley;  Elizabeth L. Scholtz; Joanne Hewson; Ronald Johnson; Tracey Chenier.  Journal of Equine Veterinary Science 92 (2020) 103-142.

The impact of ecbolic therapy in the early postpartum period on uterine involution and reproductive health in dairy cows.

Stephen CP, Johnson WH, Leblanc SJ, Foster RA, Chenier TS.J Vet Med Sci. 2019 Mar 30;81(3):491-498. doi: 10.1292/jvms.18-0617. Epub 2019 Feb 5.

Treatment of Hydropsical Conditions Using Transcervical Gradual Fetal Fluid Drainage in Mares With or Without Concurrent Abdominal Wall Disease.

Diel de Amorim M, Chenier TS, Card C, Back B, McClure JT, Hanna P.J Equine Vet Sci. 2018 May;64:81-88. doi: 10.1016/j.jevs.2018.02.021. Epub 2018 Feb 27.

Endometrial nitric oxide synthase activity in mares susceptible or resistant to persistent breeding-induced endometritis and the effect of a specific iNOS inhibitor in vitro.

Khan FA, Chenier TS, Foster RA, Hewson J, Scholtz EL.Reprod Domest Anim. 2018 Jun;53(3):718-724. doi: 10.1111/rda.13162. Epub 2018 Mar 14.

Dose-dependent inhibition of uterine contractility by nitric oxide: A potential mechanism underlying persistent breeding-induced endometritis in the mare.

Khan FA, Chenier TS, Murrant CL, Foster RA, Hewson J, Scholtz EL.Theriogenology. 2017 Mar 1;90:59-64. doi: 10.1016/j.theriogenology.2016.11.026. Epub 2016 Nov 28

Complications associated with intrauterine glass marbles in five mares.

de Amorim MD, Chenier T, Nairn D, Green J, Manning S, Card C.J Am Vet Med Assoc. 2016 Nov 15;249(10):1196-1201. doi: 10.2460/javma.249.10.1196.


Khan, F., Murrant, C., Chenier, T., Hewson, J., & Scholtz, E. (2015).  The Effect of Nitric Oxide on in-vitro Contractility of the Ovine Uterus.   Southern Ontario Reproductive Biology. Annual Meeting, May 1, 2015. Hamilton, ON

Chenier, T., Foster, B., Gonzales, L. and Schlaf, M. (in press, 2015).  Diffusion o Ethylene Glycol and Glycerol into Day 9-11 Equine Embryos.   International Embryo Transfer Society.Lousville, KY, January 2016.

Bourgon, S., Diel de Amorim, M., Lam, S., Munro, J., Foster, R., Chenier, T., Miller, S., Montanholi, Y. (in press, 2015).  Associations of feed efficiency with reproductive development and semen quality in young bulls.   EAAP 66th Annual Conference, August 2015.

Chenier, T., Amorim, M., Foster, R., Hill, A., Hayes, A., Scholtz, E.; Gartley, C. (2014).  Comparison of Diagnostic Methods in Equine Endometritis.   International Embryo Transfer Society. Proceedings in:  Reproduction Fertility and Development 12/2014; 27(1):171.

Diel de Amorim, M., Chenier, T., Nairn, D., Green, J., Manning, S., Card, C. (2014).  Complications Related to the Use of Intrauterine Glass Marbles in Mares.   American Association of Equine Practitioners (AAEP) Annual Convention.

Diel de Amorim*, M., Chenier, T., Quinn, B., Yekkiala, K., Rannala, V., S. Velianou, E. Scholtz, C. Gartley, A. Hayes (2014).  Endometritis associated alterations in major proteins in uterine flush fluids from mares.   Proceedings of the International Symposium on Equine Reproduction, 34, New Zealand: Equine Veterinary Journal, 150.

Lueders, I., Pootoolas, J., Taya, K., Watanabe, G., Yamamoto, Y., C., Niemueller, T. Chenier, E. Scholtz (2013).  Assisted Reproduction in Giraffes.   European Association of Zoo and Wildlife Veterinarians.

Search PubMed for additional publications by Dr. Chenier.