I rode a new horse today and noticed he was quite 'loud' with his breathing when we were trotting and cantering. It didn't seem to 'hinder' him at all and he wanted to 'go go go' once I asked him to canter. I asked the woman about it and she said that yes he had a 'roar' when he trotted and cantered but didn't think it was anything. Maybe just being out of shape, maybe just 'him'. I think I've heard of this term before but I really don't know anything about it. Aside from that, he was a really nice horse and he is for sale and I feel kinda bummed that I don't have the money to buy him but I want to understand anything and everything to do with horse health before purchasing one!