Just a thought with regards to this embryo debacle , this must only be the tip of the iceberg as at branding & microchipping time sample are taken by the veterinarian to be DNA tested for registration purposes . Forgive my naivety but if embryo transfer was being used on certain mares in order to breed the " Group 1 " champion then surely some DNA must be disturbingly closely related . How big is the can of worms and what damage controls will be implemented by those concerned & industry leaders ? Oh dear .