Okay, so as you all know by now, I have a two-year-old spotted draft/percheron stud colt (but not a stud for much longer!! He's going to be gelded in the next week or so) who is currently about 15.2hh. I'm just wondering if there is any way to accurately "predict" approximately what height he'll end up at. He's built more lean than the full Percheron mare that is his same age that is at our stable, and he's more lean than his half-brother who is the same age and at the stable as well (which isn't surprising since their dad is built like a freakin' tank!). He's actually built a lot like a young Friesian, but with a massive head (he takes an average draft size halter, which is for a 1400-1700lbs draft horse...his head is bigger than his half-brother's, even though his half-brother is beefier in the body).
A string test, Idk how accurate it is but my mom tried it on older horses and it was pretty close to being right. She was trying to figure out how tall her yearling would be and my 2 yr old.
But with a string test you measure from the hairline to the middle of the knee, normally, with a string then measure the string. That part is supposed to not grow after their over a year. But whatever the inches is how many hands.
Could work, could not but its fun. My mom did it too a 16.1 horse whose 7 she got 16" and a quarter.
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Many years ago I was told you measure a 2 y/o from the ground to their elbow, then double that to give you an approximation of the adult height. I've never had a 2y/o to try that on, but I'm told it is quite accurate!
There are 2 different ways to do a string test. I don't know how accurate they are because I don't have much experience with babies, but I do know that my Grandpa swore by the string. Even if it's not exact, it will at least give you an idea of what to expect.
I think it's worth doing a string test to get a rough idea, but I have doubts about the accuracy. On my own two youngsters, it has my 2 year old Finn (currently 16.1-2 hh) maturing at 18.2 hh and my yearling Fiona (currently 15.1 hh) maturing at 19.1 hh.
On both horses, their dam is 15.2-3hh and the sire is 18.2 hh.
I admit I don't know all that much about horse genetics, but I do know dog genetics, and puppies of two different size parents tend to finish somewhere in between the range of the two parental heights, not under, and not over.
In my case, I would not suspect either Finn or Fiona to get much over 17 hands matured, despite what the string test says.
Now just watch, Indy, Fi is going to prove you wrong and laugh about it LOL.
I do have one perfect example of the foal seriously outgrowing either parent. Back when Dad was showing Appy's, the ranch that he worked for bred a mare/stud combination a total of 5 times. Both parents were just slightly over 14 hands and 4 of the foals matured to around the same height. Then came Devilweed, who matured to over 16 :lol:.
Do you have any idea how much I already struggle to hike my way up onto Claymore, who is only 16.3? lmao
I'll need to take running leaps!
Alrighty! Tomorrow I shall go to the barn armed with my trusty sewing...tape. Oh dear! It's at the theater! lol Well, hopefully I'll remember to grab it while I'm there tomorrow after the barn. I will try the lead rope one, though (first one in the link smrobs provided). I have a feeling he's going to be HUGE 'cuz he has VERY long legs compared to his height. *gulp* I love tall horses, but I'm definitely going to have to teach him to lead to a mounting block and stand 'cuz I couldn't get on the 15.2hh paint gelding I rode on Saturday (tore my rotator cuff working at a friend's barn last year and haven't been able to get it fixed).
Okay, I tried the lead rope measuring technique. I have a pic of me holding the lead rope to him, but I haven't gotten a chance to upload it yet (just got internet back today). According to the lead rope technique, he's going to be about 17hh (basically the end of the lead rope was about an inch above my head and I'm 5'7". :-O I keep forgetting to bring my sewing tape with me so I can do the canon bone measurement one.
Lobelia, if I did it your way (I measured from his elbow to his fetlock), I'd have to add a good 3" to his height! Eep! lol
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