We have Lavender Foal Syndrome (LFS) testing!!
Lavender Foal Syndrome (LFS) is another autosomal recessive disorder that can affect full and part-bred Arabian horses.
“Autosomal” disorders are equally likely to occur in either male and female horses, while “recessive” means that a horse needs to inherit the LFS mutation from both its sire and its dam to be affected. Horses that have inherited the LFS mutation from just one parent are called LFS carriers, and do not have physical signs of this disorder.
Any LFS carrier can potentially produce a foal suffering from LFS. Fortunately this is easily avoided: you simply need to ensure that the prospective foal cannot inherit the LFS mutation from both its sire and its dam. Therefore, if you have a LFS carrier horse and it is mated to a LFS-clear horse there is no risk of the foal being affected with LFS.