If you bleed twice in either Australia or New Zealand your horse is banned for life.may be a reason so many are bought and shipped here
Yes down under horses that have bled right out of both nostrils after a race are at risk of being retired-so are then sold to North America because they know Lasix will improve their performance and they start fresh.
The REAL reason why many are sold here-is that the Australian and NZ $ is 25-35% less than the US $-so you can pick up a nice horse for less money.