Conversations in Equine Science

In this episode Nancy McLean checks into recent equine herpes cases and focuses on new research linking corticosteroid (triamcinolone) joint injections to insulin spikes and severe laminitis. They review the case of Fiona, a competitive mare who developed fatal laminitis after sacroiliac injections, and summarize ongoing studies at NC State funded by the Chromatic Fund. The researchers are comparing single high-dose versus repeated low-dose steroid protocols, finding undiagnosed insulin dysregulation in many sport horses and recommending insulin testing before steroid treatments. The clinical study is expected to conclude by spring 2026.

This episode breaks down the current EHV-1 (EHM) outbreak in the U.S., covering clinical signs, transmission, and incubation periods. Listeners will learn about vaccine limitations, why quarantine and low-stress management matter, and practical biosecurity measures—cleaning, disinfectants (70% alcohol, hydrogen peroxide, chlorhexidine), and when to avoid bleach on dirty surfaces. Advice emphasizes keeping horses home when possible, monitoring for fever and limb swelling, and consulting your veterinarian for case-specific guidance.

Hosts Nancy McLean and Kate Acton discuss a 2025 study on how owner–veterinarian interactions affect recognition and management of pain in horses, using owners’ stories and vets’ perspectives to highlight subtle behavioral signs and practical decisions. The episode emphasizes the importance of knowing each horse’s normal behavior, keeping compassionate communication open with veterinary teams, planning for aging horses, and making welfare-focused choices. Research Link: https://www.cambridge.org/core/journals/animal-welfare/article/owners-everyday-interactions-with-their-horse-painrelated-issues-and-those-of-veterinary-concern/8709217EEB13EFA934E783A03204E973?utm_campaign=shareaholic&utm_medium=email_this&utm_source=email

Nancy and Kate conclude their discussion on the current research and the Flying Lead Change book by Kelly Wendorf. Sign up for the Kelly Wendorf clinic at the InStride episode page link.

Nancy and Kate conclude their discussion on the current research and the Flying Lead Change book by Kelly Wendorf.