Common language between all the organisations registering horses, such as stud-books and federations, is rarely used. They all have their own independent systems of identification of horses, which renders sharing of information difficult.
The UELN (Universal Equine Life Number), however, includes the registration number of the stud-book of birth without modification. So that database managers are not required to modify their registration systems. This enables them to create a UELN according to the original registration number of the horse.
The aim is to ensure that each horse in the world can be identified with one UELN. As an example, when an organisation needs information concerning a stallion registered in another country, the UELN will allow it to find data easily concerning this specific stallion, by simply referring to its UELN number in the "data exchange" section of the UELN Website.
Each horse registered to the FEI is given a Universal Equine Life Number (UELN):
For your convenience we have also added a list of Studbooks members of the World Breeding Federation of Sport Horses (WBFSH).