My quarter horse seems to have a pretty large chest/ breast area, and I was wondering if it was simply his conformation, or something with muscle mass that could be toned, or even if it was a good or bad thing. He could honestly wear a bra, if he'd like. He was very out of shape when I got him, but even then his chest was large.
His chest most closely resembles the first picture from the front, and the second from the side. The third seems slightly more 'normal'? I'll try to get actual photos of him when I can, but I figured any sort of reference is better than none. (I also couldn't decide whether this was a conformation, health, or training question. )