Join Dr. John Kastelic, professor emeritus of theriogenology at the University of Calgary, for a deep dive into the science and practice of bull fertility. From breeding soundness exams and ultrasonography to heat stress, early-life nutrition and emerging technologies, Kastelic shares practical insights gained over decades of research and clinical experience. Learn what today's BSE can — and can't — tell you, how new diagnostic tools are changing fertility evaluation, and why a bull's reproductive potential begins long before breeding season.