James graduated from the Royal (Dick) School of Veterinary Studies, Edinburgh in 2001 after which which he spent four years in mixed practice before leaving for a stud season in Victoria, Australia with Dr John Hyland, specialist in Equine Reproduction. On his return to the United Kingdom, James joined Dr Jonathan Pycock at Equine Reproductive Services, a private first opinion and referral equine practice based in Yorkshire.

During the Southern Hemisphere stud seasons he has worked for Hamilton Veterinary Services, New Zealand and as a consultant stud veterinarian with Dr Lee Morris at EquibreedNZ and Dr Erick Klaui at The Flying Dutchman Australia. In 2009, in association with Balinmore Stud and AI Centre, James set up a stallion semen freezing unit. In 2010 he was awarded the RCVS certificate in Equine Stud Medicine and in 2011 was made an associate lecturer at Liverpool University. James lectures regularly on the national and international stage and has published peer reviewed material on the breeding soundness examination of the stallion, peri-partum problems in mares, granulosa cell tumours and persistent endometrial cups.

He also contributes widely to the popular press with articles on many subjects from bent legs in foals to embryo transfer and embryo freezing. James continues to perform practice based research utilising the most current techniques in equine reproduction and has a particular interest in Doppler ultrasonography, stallion management, the late term pregnant mare, ovarian pathology and orthopaedic disorders of the foal. James is currently lead consultant at Equine Reproductive Services.

Tom qualified from Cambridge University's School of Veterinary Medicine in 1993. He performed his PhD, also at Cambridge, on 'Maternal Recognition of Pregnancy in the Mare' under the supervision of Professor W.R. 'Twink' Allen at the Equine Fertility Unit in Newmarket funded by the Horserace Betting Levy Board. After a short period as Lecturer in Animal Reproduction at Cambridge Tom moved to Utrecht University to become a lecturer in equine reproduction. In 2007, he was appointed to the Chair of Equine Medicine and Reproduction at the Department of Equine Sciences and also to an extraordinary Chair in Reproduction at the University of Pretoria, Department of Production Animal Sciences. 

Tom is a Diplomat of the European College of Animal Reproduction (ECAR) and a Royal Dutch Veterinary Association specialist (KNMvD) in Equine Reproduction. He runs a busy clinical discipline working on all aspects of equine reproduction, with increasing emphasis on assisted reproduction and diagnosis and treatment of infertility. Tom's research interests are focussed on fertilisation, early embryonic development and early pregnancy loss in mares and in the relationships between semen quality and fertility in stallions. He is also involved in studies into semen quality and early embryonic development in farm animal and wildlife species and contraceptive techniques for the management of wild animal populations.

Dr. Sielhorst is a Diplomate of the European College of Animal Reproduction and is currently affiliated with the Tierärztliche Hochschule Hannover and the equine hospital Tierärztliches Kompetenzzentrum Karthaus. She obtained her veterinary degree in 2006 and received her specialty training at the University of Hannover in Germany. Her research interests include ultrasonography of the late pregnant mare, use of Doppler ultrasonography in the pregnant mare and functionality of the pregnant uterus.