Which identification method is used for permanently identifying reactors to Equine Infectious Anemia?

Freeze branding with "14A" is the correct identification method for permanently identifying reactors to Equine Infectious Anemia (EIA). This technique involves using a specific branding iron that marks the horse's skin with a freeze-burned symbol, which remains visible throughout the horse's life. The "14A" designation is specifically associated with EIA reactors and enables easy identification and tracking.

Using freeze branding is highly effective because it provides a permanent, visible mark that indicates the horse’s status regarding EIA, thus supporting biosecurity measures within equine facilities and ensuring the health of other horses. This method is recognized and accepted widely within the equine community and by regulatory agencies, facilitating communication and compliance concerning EIA management.

Other methods such as microchip implants, eartag identification, or color-coded collars are either less permanent or do not provide a unique designation specific to EIA. While these methods can be useful for general identification or tracking purposes, they lack the specificity and permanence required to denote a horse's status concerning Equine Infectious Anemia. Therefore, freeze branding with "14A" is specifically tailored to meet the needs of identifying EIA reactors effectively.