Mare to Stallion Size

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Mare to Stallion Size

This is a discussion on Mare to Stallion Size within the Horse Breeding forums, part of the Horse Breeds, Breeding, and Genetics category

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    08-28-2010, 11:25 PM
Mare to Stallion Size

I have a 15.1 hand QH mare that I have been thinking about breeding. (This tread is NOT about whether or not I should breed my mare so those comments here are not needed.)

I am an eventer and had thought about breeding her to a TB to get a nice appendix. I have been looking for conformation and athleticism first. I have been looking at studs that are all taller then she is. Today, I met a very nice Westphale stallion, but he 16.3 hands. Had not really considered a warmblood, but he has all the qualities I am looking for and he is local (a plus for sure). But I am thinking he may be too big for her.

What would you say is the "rule" for how much bigger you can breed a mare to?
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    08-28-2010, 11:37 PM
Green Broke
I have a 14.3hh mare in foal to a 16.1hh clydesdale stallion.

From what I have read, I believe that while in utero the foal will only grow as large as the mare's body allows.
    08-28-2010, 11:43 PM
It seems I have read that too, but I have also heard people talking about the stud being to big for a mare, so that is why I asked.

Here is a link to some pictures of him.
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    08-29-2010, 12:41 PM
Originally Posted by HowClever    
From what I have read, I believe that while in utero the foal will only grow as large as the mare's body allows.
This is what my vet told me, as well. Several years ago, we bought a 13.2 hand Welsh Cob/Haflinger mare who was in foal (accidently) to a 17 hand Belgian. I was worried sick about her, but everything turned out just fine. Baby was born weighing 115 pounds and had legs as long as her mom's, but everyone was happy and healthy. We still have both mother and daughter, and daughter topped out at about 16 hands and a good 1350 lbs.
    08-29-2010, 07:52 PM
Yep, the whole "his foal will be too big for her" thing is a myth. The above poster's are correct - the baby only grows as big as mom's body allows.
    08-29-2010, 10:21 PM
The thing I would worry about is the actual covering lol. I can only imagine all the comical things that would have been that mating between a 13.2 mare and a 17 stallion rofl.
    08-29-2010, 10:52 PM
Yes, we have a 13.2 hh welsh cob that we'd like to breed to a 15 some odd hand stud eventually and we've been told all of the same things, baby won't outgrow her in utero.
    08-29-2010, 11:32 PM
If there is a drastic difference in size, my worry would also be about the initial breeding instead of the pregnancy. However, there really isn't much difference in size between the 2. If drafts studs can be bred to standard (or smaller) mares, your mare should have no problems.
    08-30-2010, 12:55 PM
I bred a 13 hand pony mare to 15 hand paint. The mare did a wonderful job. The only problem we had was the foals legs were so long it had a hard time getting under the mom for its first drink. After about an hour of watching and trying to help him. The mare lifted one back leg and shoved the little bugger under her. Once he found the spot though he was good. The colt is 2 now and 14 hands.

One other thing I will say is that there is no good way to predict the height of the baby with such matings. Might end up short or tall or anything in between.
    08-30-2010, 01:10 PM
Originally Posted by Snowkicker    
One other thing I will say is that there is no good way to predict the height of the baby with such matings. Might end up short or tall or anything in between.
Yeah, that's the fun part. In my particular case however, our mare's dam was 14.2 hh. The stud we're looking at has parents that are both 16 hh or so... so the hope would be that the foal wound up somewhere between 14-16hh.

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