Veterinary Vertex
Veterinary Vertex
AVMA Journals
Comfort Without Compromise: Phenylbutazone and Mare Fertility
16 minutes Posted Aug 13, 2025 at 5:00 am.
Introduction to Phenylbutazone Study
Background on Transvaginal Aspiration and ICSI
Study Findings on Phenylbutazone Safety
Career Path in Theriogenology
Surprising Results and Future Research
Key Takeaways for Vets and Clients
Episode Closing and Final Thoughts
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Send us Fan Mail Challenging conventional wisdom in equine reproduction, this episode explores revolutionary research about phenylbutazone's impact on embryo production in mares. When previous studies claimed mares on "bute" had zero successful embryos via intracytoplasmic sperm injection (ICSI), Dr. Kristen Loncar and her team questioned these findings based on their own clinical success. Their subsequent investigation reveals surprising results with significant implications for veterinary p...