[QUOTE=mvp;8923963]
Great thread! The part that strikes me as most consistent is the angle and length of the pelvis.
Also, I think the proportions of the gaskins and cannon bones behind stay the same; their relationship does. Or maybe I’m looking at how much bend there is in the hock.
I can’t tell as much about the shoulder. I see that the angle between the humerus and scapula opens up a lot. That’s as you’d expect, but I’m not sure I can see as much about how these bones will relate in the grown up horse from looking at the foal pictures.
All in all, I think there’s more consistency in the hind limb between foal and, say, 3 years old than in the front end. I think “unfolding” that the foal has to do shortly after birth contributes to the distortion of the front end in relation to how it will develop in the adult horse. And the butt high phases of grown also seem to distort the form and function of the front end more than the back end.
Can you guys see how the neck will ultimately come out of the shoulder in the adult horse? They all look quite vertical in the foals.[/QUOTE]
This is just my opinion, I’m not an expert, but (3 months) yes, the bones’ angles in the hind stay the same, but the croup angle or the “meat” can change shape a bit more (flatter or more angled). I think the shoulder stays relatively similar–again on a 3 day old you can get a deceptively strong angle, because they are still unfolding, so-to-speak. Can you tell I’m not that excited about the “3 days?”
The shoulder angle will be more skewed when they are butt high or low though, so that is the tricky part.
I also agree that they appear more high-set or vertical in the neck as babies then they probably end up. Watch the under side of the neck once they are weanlings too to determine the topline–if that makes sense. If they are going to tie-in lower and have a lower neck set, the underside will tie in lower towards the chest on the foals. The topline is also harder to see because they don’t really have a wither yet at that age (at least the ones that will develop a sharp wither) and that will influence how the topline/neck set looks too.
The pastern angle will be pretty consistent in the three month old on and a straight/steep pastern often is going to indicate there will be a straighter shoulder.
Loin connection can look better in a young foal then it ends up too.
LordHelpus–I think hints of the future back length is there in the weanlings (and especially yearlings, who are strung out a bit and tend to look long), but the depth wasn’t (girth) nor the muscle that they developed. I don’t think the backs got shorter, but the “width” increased and suddenly it is proportionate. Then you see additional muscling from 3-5 and that improves the picture further.