Tullis began his career with horses, working in racing stables. In 1990, he returned to run his father’s stud at Twemlows Hall. Tullis has been directing Stallion AI Services Ltd, a stallion semen collection center, likely the largest center of its kind in the UK, for over 18 years. He has frozen semen from more than 700 stallions and carried out over 10,000 collections. In 2011, Tullis received the Marsh Christian Award for Conservation in Genetic Bio-Diversity. He has been awarded for the technological advances he has brought to the field of equine semen freezing, which has enabled the collection and freezing of some rare breeds for the first time. Tullis is a very knowledgeable and entertaining speaker who loves to share his vast practical knowledge and expertise.

Tullis will contribute to the DeMorette Stallion & Semen Handling Lectures & Wetlabs