Can a mare get pregnant at 1 1/2 years of age? - The Horse Forum
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post #1 of 15 Old 01-24-2009, 07:59 PM Thread Starter
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Wink Can a mare get pregnant at 1 1/2 years of age?

Hello Everyone. I am new here as of today. I have always owned geldings so I know next to nothing about mares. My closest friend has her 2, one and a half year old horses out here at my place. One is a mare, the other a stallion. My son also has a 4-5 year old stallion here.

To get to the point, NOT one of us thought to separate her from the other horses because, like I said, I have ZERO knowledge about mares and their cycles, etc. Even the owner thought that she would be too young to be interested in mating. Anyway to make a long story short: This morning we caught her and the older stallion, shall we say, occupied.

So, my question is can she get pregnant so young and if so what can be done? Should we, or rather can we terminate the pregnancy? Or do we do nothing except help her through it? Will this be detrimental to her growth? Will it make her a smaller horse if she is left to carry the pregnancy to term? I am really scared about this. She is such a sweetheart, and one beautiful little Palomino princess. Myself, as well as the owner, want to do what is right by her. Her welfare is what is foremost important to us at this time.

I feel terrible because we all were running on the assumption that we had a few months before we needed to get both stallions gelded. She has also shown no interest in either stallion. The only thing I have noticed is that she does kick at the older stallion if he comes too close for her liking. So why would she now let him mount her?

She spends the majority of her time with my 2 and half year old Tabiano gelding. My gelding is the alpha of this herd, which I find unusual having 2 stallions in with them, but I think that is why she hangs with him the majority of the time. She beds down with my gelding, eats with him, plays with him, etc… And he does run the stallions off if they get too close.

What to do? HELP please. I feel really stupid, but like I said I WON'T own a mare so I have NO knowledge about their cycles, or seasons, when they are fertile, etc.

If you can help ease my mind and share your knowledge with me, PLEASE do so.

Thank You for listening to my ranting... Cammiio2
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post #2 of 15 Old 01-24-2009, 08:42 PM
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Cammiio2, welcome to the forum.

Although it is not common - or healthy - for a mare that young to get pregnant, I think it is possible. Just like any other animal, horses mature sexually at different rates and ages. If she were my mare, I would consult a vet and if she was found to be pregnant I would definitely have it terminated.

She is still a baby herself. She has a lot of growing and maturing to do and a "motherly" sense would most likely not yet be developed. I would think that it could be detrimental to both mother and foal if a pregnancy was allowed to complete - even if she didn't abort on her own.

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post #3 of 15 Old 01-24-2009, 08:53 PM
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I think a filly that young their bodies and bones are not fully developed yet and it may cause complications to both mare and foal if she were pregnant.

On the other hand... in the wild fillies would fall pregnant once they started coming into season... but im not sure exactly when that is.

Personally, I would be a bit worried about the filly, as she is not even mature yet, so I think having it terminated by the vet would be the safest option for all concerned..
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post #4 of 15 Old 01-24-2009, 09:39 PM
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Thank You IRideHorses,
You have strengthened my resolve to the solution to this little problem. Everything you mentioned were the exact worries I have on this matter. Thank You for taking the time to answer.....
Wishing you luck.... Cammiio2
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post #5 of 15 Old 01-24-2009, 11:18 PM
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I would definitely have her vet checked and go from there. If she is in foal, your concerns are very valid as it is very detrimental to their growth to have a foal that young. The nutrients a 1 1/2 yr. old horse would usually put toward growing would then be put toward that foal. I knew a mare that accidentally got bred at 2 and she was very stunted.
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post #6 of 15 Old 01-25-2009, 12:15 AM
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I'd geld the stallions ASAP. It's not safe to keep a stallion unless you have a lot of experience. They'll likely want to breed any available mare.

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post #7 of 15 Old 01-25-2009, 03:06 PM
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My horse is 6 and has a 3 year old baby from before he was gelded, and the mother is 5. So yes, it is possible for very young horses to get pregnant. In this case the mare carried to term, delivered and everyone was fine. This all happened over a fence, btw. The horses weren't even turned out together.
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post #8 of 15 Old 01-27-2009, 10:52 AM
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a yearling filly will start showing signs of heats and that is why colts and fillies should be seperated before winter weather sets in to avoid any accidents.

You hopefully have seperated them now? A vet can administer a needle to bring her back into heat.

Allowing her to carry a foal full term may cause her death as a foal is presented full size and a young horse's body structure is not developed enough to successfully foal without assistance.
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post #9 of 15 Old 01-27-2009, 11:40 AM
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Yes most can get pregnant as a 1.5 year old.

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post #10 of 15 Old 01-28-2009, 08:29 AM
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Call the Vet and tell him when they breed and find out if it is to late to give her
a shot to terminate the pregnancy. He may have to do an ultrasound to see if
she is preggo or not.

She is much to young to be carrying a foal.

I am concerned for the security of our great Nation; not so much because of any threat from without, but because of the insidious forces working from within. Douglas MacArthur
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