Gelding trying to mount mare in heat

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Gelding trying to mount mare in heat

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    10-05-2011, 02:17 PM
Gelding trying to mount mare in heat

Hi all -- first off, I'm new here, so if this is in the wrong place, my apologies. Didn't seem to fit any of the more specific categories above.

We brought two horses home this weekend, one gelding & one mare. As luck would have it, the mare came into heat this week, within a day or two of getting here.
And the gelding keeps trying to mount her. He doesn't know what he's doing at all, jumping on her from the side, in one case moved around towards her head. And even when he does manage to end up on the "right" end, he isn't penetrating, just going through the motions (kinda like a dog going at it on a person's leg)
We've double checked that he is gelded, there's nothing there, and will ask the vet to make sure as well, she's coming tomorrow for a check up and fall shots.

My question is -- can he hurt her trying to do this? I'm wondering if they need to be seperated? (We only have one pasture so that could be a chore, but if we have to split it then....also these are our only two horses so they'd be alone if seperated) We're not riding right now anyway, giving them some time to adjust to their new home and then a few weeks of ground work to get used to each other. I'd expect though that in the future she may have a sore back from it as well and shouldn't be ridden until she's not in heat again. (That's assuming he leaves her alone if not in heat, I would expect so though).

I don't know how old the gelding was when gelded or if he'd been bred prior (I'm guessing not, based on the fact that he doesn't really seem to know what he's doing, but not sure); he seems to have changed hands quite a bit.
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    10-05-2011, 02:34 PM
Green Broke
He might be a rig, or he might just mount mares. Some geldings do even though they have been gelded correctly. It's extremely irritating, especially if you own the mare and not the gelding. I ended up moving a previous mare I had because of this.

It can do damage to a mare, especially if the gelding has shoes on, so at the very least I'd try and put a good rug on her. I'd seperate them... but I've known a few horses who have done it and there have been no ill effects to the mare. Hopefully it will stop when she's not in season.
    10-05-2011, 02:38 PM
I have a very studdy gelding. Not a rig, he just thinks he still has those dangly bits.

My little herd of 3 are all geldings, but I took care of a friend's mare for about a month. Hussy came into season, and of course Casper put on his 'I'm a hot stallion' routine.

Had to keep them separated, because he most definitely would have mounted her and I didn't want her getting hurt.

Will your gelding hurt her? Probably not, but she could get a vaginal/uterine infection from penetration that would require a vet visit and antibiotics.
    10-05-2011, 02:46 PM
I'd really worry more about cuttings on her back from hooves/shoes than anything else, and quite honestly I wouldn't be all too concerned about that. Just keep an eye on her, is my recommendation, and let nature take its course.
    10-05-2011, 05:35 PM
If they were mine, I would separate them until she finishes her heat cycle. Not only is the risk of the gelding injuring her there, but she could also injure him very quickly. If she decides that she's not in the mood for his shenanigans, one swift kick could end his life by breaking a leg or any number of other injuries he could sustain from a kick. I've even heard of studs having their penis fractured after a mare kicked them.
    10-06-2011, 07:19 PM
Thanks to everyone who's offered advice!
Turns out the gelding *is* a stud (although the vet did also say that about 5% of geldings will act studdish around a mare in heat, even if gelded early & properly). He has one testicle completely inside, and the other is small and only partially descended, and somewhere along the way his scrotum was cut. (Why they'd cut his scrotum and not actually geld him is beyond me?). He will be gelded, but it's a more invasive surgery now (between the scar tissue and the fact that he's not descended), so the vet recommended waiting til late Nov / early Dec when the flies and such are mostly dead.

And -- my neighbor has offered to take the mare whenever she is in heat. (She has one large (5 acre) pasture, 2 smaller ones, and an indoor arena, with 2 horses, so plenty of room). Means the gelding will be alone for a week or so, but much better than risking injury. The vet did tell us that it wouldn't be a good idea to just run a fence down the middle of our pasture, because they may try to mate across the fence, and then they likely will get injured.
    10-06-2011, 07:23 PM
Wow, scary. You might want to have the mare preg-checked just to make sure. The chances that a stud with undecended testicles would be able to breed her are fairly slim, but better safe than sorry.

That's great news that you are going to be able to keep them separated until he can be fixed properly.
    10-06-2011, 09:06 PM
Originally Posted by smrobs    
Wow, scary. You might want to have the mare preg-checked just to make sure. The chances that a stud with undecended testicles would be able to breed her are fairly slim, but better safe than sorry.

That's great news that you are going to be able to keep them separated until he can be fixed properly.
Agreed. Already discussed that with the vet as well. She said she can do a blood test in two weeks, or an ultrasound in 3 weeks, or we can wait for the mare to come in heat again (in about 3 wks - 22 days). Vet said essentially the same as you did, that there is a small chance he could get her pregnant, but not impossible. Smaller because as far as we've seen he hasn't penetrated her (and as far as the vet could tell....lots of bruising on her back end, poor girl, but none internal). So we'll be watching for another heat cycle; if it doesn't come, then we'll have further testing done, and I'll have to find another temp home for the mare; we don't have a proper barn or a good way to seperate them for a longer time. I hope not, she's 20, and we're just not set up for foaling, nor do I really have the time & energy for a foal (although we could probably sell it to someone who does at weaning.) She's also a bit underweight right now - about 60 to 70 lbs, which isn't huge in horse terms, she'll easily get that back -- but not a good place to begin a pregnancy.
    10-08-2011, 01:20 PM
It sounds like someone tried to geld him at the farm, and being a cryptorchid, they were unable to get a hold of the testicles.

From what I understand (I owned a crypt once), the testicle in the stomach is unable to produce (sperm die because too warm), but the dropped testicle could be a problem, depending on if it is normal or not. Either way, you will want the one inside removed or he will always act like a stud. Good luck

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