Microchips implanted in horses throughout the world are used by:

• Owners
  For positive proof of ownership and as a theft deterrent
• Equine breed registries
  To establish genetic identity and maintain records
• Racetrack and horse show officials
  For positive identification

In the US state of Louisiana, microchips are used to control equine infectious anaemia. The use of microchip identification in equine has brought about a dramatic reduction in the incidence of equine infectious anaemia and other equine diseases.

Electronic microchips and readers for equine are the same as those used for companion animals.