John Kastelic

Department Head & Professor

Production Animal Health

Associate Member

Cattle Health Research Group

Full Member

Reproduction and Regenerative Medicine Research Group

DVM, MS, PhD, Diplomate ACT, Professor of Honoris Causa

Contact information


Office : CWPH1E15


  • VM 541
  • MDSCI 701

Preferred method of communication

Currently not accepting any students at this time

Please contact the faculty member directly at the email or phone number listed above.  If you are not able to reach them, the faculty assistant listed below may be able to help.

Faculty/Admin Assistant

Name:Ophira Charikar

Phone:+1 (403) 210-6420

Research and teaching

Research Interests

  • Clinical Science
  • Production Animal Health
  • Reproductive Biology

Research / Scholarly Activities

The primary focus of Dr. Kastelic’s research is on animal reproduction, primarily cattle. He has published extensively on the use of ultrasonography for imaging the reproductive tract, including diagnosis of  pregnancy and fetal gender, assessment of ovarian structures, and the testes. He was involved in early studies utilizing ultrasonography to monitor ovarian follicular development and has many publications regarding synchronization of estrus and ovulation. In the male, he has published extensively on scrotal/testicular thermoregulation, breeding soundness (and other methods of predicting fertility) and on the effects of nutrition on testicular development, puberty, and sperm production. He has collaborated with numerous colleagues in Canada and internationally.


Dr. Kastelic received his DVM (with distinction) from the University of Saskatchewan (1982), an MS (1988) and PhD (1990) in Reproductive Physiology from the University of Wisconsin-Madison, and a Professor of Honoris Causa (2007) from Szent István University (Budapest, Hungary). He was a practicing veterinarian in Alberta (1982-1984) and a Research Scientist at the Agriculture & Agri-Food Canada Lethbridge Research Centre (1990-2012) before joining the University of Calgary (2012).

Dr. Kastelic is a Diplomate of the American College of Theriogenologists, served on the examination committee (2001-2008) and was designated Theriogenologist of the Year (2009). (

Dr. Kastelic has a special interest in scientific writing. He was Co-Editor-in-Chief of the journal Theriogenology ( from 2003 to 2012. Furthermore, he has given lectures and workshops on science and science writing on four continents.