I've had several horses that weren't broke, but they don't attack.
I'd think long and hard about breeding her, with that level of aggression. I would not want to purchase her offspring, especially since most minis go to pet homes with folks who want docile, friendly animals.
I'd think long and hard about breeding her, with that level of aggression. I would not want to purchase her offspring, especially since most minis go to pet homes with folks who want docile, friendly animals.