Your complete guide to horse breeds, care, and riding from around the world

Horse Registries

Horse Registries

Warm Blood Breeding Selection and Stud Books

Open studbook policies separate most warmbloods from true "breeds" such as Thoroughbreds, Arabians, Percherons, Morgans, which have a closed stud book and require two purebred parents. Instead, most warmblood registries accept breeding stock from other similar populations to continuously improve their own horses, and do not consider their own horses to be a discrete "breed".