Affiliation: | 1. The Royal Veterinary College, North Mymms, Hatfield, Hertfordshire, UK;2. The Bell Equine Veterinary Clinic, Mereworth, Kent, UK;3. Tosoh Bioscience Ltd, Redditch, Worcestershire, UK;4. Equine Studies Group, WALTHAM Centre for Pet Nutrition, Waltham on the Wolds, Leicestershire, UK |