
Important Notice: Temporary Suspension of Hands-On Veterinary Services
Why Choose KJD Veterinary
Our unrivaled expertise and proprietary techniques deliver results you can trust
Beyond All Doubt
Dr. Doyle's proprietary technique delivers unmatched accuracy in fetal sex determination with the highest scientific and medical certainty, verified by thousands of successful determinations.
World-Class Expertise
With decades of experience and training from the University of Dublin, Dr. Doyle is trusted by the industry's leading breeders and stables.
Global Network
Access our network of KJD approved associates across Australia, Ireland, UK, USA, New Zealand, and Japan.
Why "Beyond All Doubt"?
While we maintain the highest scientific and medical certainty in our fetal sex determinations, we choose to express our confidence as "Beyond All Doubt" rather than claiming absolute percentages.
This reflects our commitment to responsible scientific communication while acknowledging that Dr. Doyle's proprietary techniques have consistently delivered accurate results across thousands of determinations. Our methodology represents the pinnacle of veterinary ultrasound expertise, backed by decades of experience and continuous refinement.
Our Services
Comprehensive solutions for equine breeders and veterinarians
Additional Services
Explore our complete range of professional services
Consultation & Speaking
Expert guidance and educational presentations
KJD Management Suite
Comprehensive tools for equine breeding program management
Emergency Services
Rapid response and surgical intervention for critical equine care
KJD Marketplace
Premium equine supplies and equipment for professional breeders
Trusted by Industry Leaders
Hear what the world's top breeders and veterinarians have to say
Dr. Doyle's accuracy is unmatched. His expertise has been invaluable to our breeding program and has set the gold standard for equine reproductive services.

The ability to determine fetal sex beyond all doubt has transformed how we plan our breeding and sales strategy. Dr. Doyle's insights give us a competitive edge in the bloodstock market.

Peter Hegarty
Principal, Hegarty Bloodstock
Hegarty Bloodstock
Dr. Doyle's training program is comprehensive and hands-on. It's given me skills that set my practice apart and enhanced our equine reproductive services significantly.

Dr. Ross Pedrana
Veterinarian, Pet Medical Centre & Dubbo Equine Hospital
Latest Insights
News and knowledge from the world of equine reproduction
The Optimal Window for Fetal Sex Determination
Learn about the ideal timeframe for accurate equine fetal sex determination and why timing matters.
How Accurate Fetal Sex Knowledge Impacts Breeding Decisions
Explore how accurate sex determination beyond all doubt can transform your breeding program and marketing strategy.
KJD Veterinary Expands to New Zealand
We're excited to announce the expansion of our KJD approved associate network to New Zealand.