I disagree with the both of you. My TB was a cow when he was in racing condition compared to what he is now....He actually looked a little bit like a QH. Granted, a lot of that bulk was muscle, but still, as a general rule if you can see ribs and there are pockets in front of the hip bones, they are underweight.
?If you disagree that it's possibly just a matter of perception that the horse is thin, you must know the horse personally then, so don't have to generalise & guess like us. But I wasn't assuming this, just suggesting it was a possibility anyway. Or do you disagree that many people are just conditioned to fat horses & don't recognise healthy weight? If that's the case, you're in a very different horsey world to us in western society.
Or perhaps it's the comment about TBs not meant to look the same as QHs? Perhaps you're used to looking at TB type QHs.
But seriously, just because you reckon your TB looked 'a little bit like a QH', I don't understand where the argument is there. They are quite different built breeds *generally* and I bet if yours came straight out of race training, there was hardly an ounce of fat on him.
Boy, I wish I could still see my ribs...
On the note of horse's ribs, I wouldn't say it's a very good general rule. It depends. I would say that if the horse has a good winter coat & you can see his bones sticking out, that's almost definitely too skinny, but if you can see a bit of rib when he's in summer dress, that's not necessarily at all bad. It does definitely depend on breed & fitness too - eg. you wouldn't expect to see well covered ribs on a fit athlete.
Looking at just one area such as ribs is not very accurate, because as with people, horses come in all shapes, which is why I suggested something like the henneke body scoring, which takes it all into account. Eg. if I showed you select angles of my pony when I got him, of his sticking out spine & wasted, angular looking rump with hip bones protruding, you may say he was painfully thin. But pics of other angles would show him to be overweight. Incidentally his pelvis was out, and some good bodywork corrected his 'skinny' rump in one session!