Dr. Thomas Riddle, who formed Rodd & Riddle Equine Hospital with Dr. Bill Rood in 1985, passed away at home September 20, surrounded by his family, according to a post on Legacy.com. He was 74 years old.Born June 7, 1952 in Greenville, South Carolina to a veterinarian father, Riddle graduated from Wake Forest University in 1974 and the University of Georgia College of Veterinary Medicine in 1978. After graduation from veterinary school, he traveled to Lexington, Kentucky for an internship with Dr. Don Witherspoon at Leslie Combs's Spendthrift Farm. Following his internship, he spent another three years working at Spendthrift.In 1982, Dr. Riddle joined Dr. Bill Rood in his ambulatory practice in Lexington and Rood & Riddle Equine Hospital was formed. In 1985, Rood & Riddle purchased land on Georgetown Road and broke ground for their new hospital.Dr. Riddle served as president of the Kentucky Association of Equine Practitioners, the Society for Theriogenology and the Theriogenology Foundation. He received the Steiner Award for Excellence in the Practice of Theriogenology and was an honorary member of the American College of Theriogenologists. He was appointed to the Kentucky Horse Racing Commission by Governor Andy Beshear in 2023.Dr. Riddle was the first to recognize and report the 2001 abortion outbreak, known as Mare Reproduction Loss Syndrome. Clinically, he specialized in uterine culture and cytology, early twin management, fetal sexing and diagnostic ultrasound of the mare's reproductive tract, according to the Rood & Riddle website. He was an internationally recognized authority on equine reproductive medicine.Dr. Riddle is survived by his wife, Margaret Alexander Riddle, and their three children. Their daughter, Peden, manages Highlight Thoroughbreds in Paris, Kentucky and is married to an equine veterinarian, Dr. Bryan Fraley. Their older son, Alex, is in the veterinary pharmacy industry, and he and his wife, Emily, are investing in the future of Versailles, KY. Their son, Davis, practices law in Atlanta.A gathering of family and friends will be held from 4 to 7 p.m. on Monday, September 28, at the Clark Funteral Home in Versailles, Kentucky.A memorial service will be held at 11 a.m. on Tuesday, September 29 at the Church of the Ascension in Frankfort.In lieu of flowers, contributions may be made to the Bluegrass Farms Charities, PO Box12252, Lexington, KY 40582 or through www.bgfcky.org.This story will be updated.The post Dr. Thomas Riddle Passes Away appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.