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Can a pregnant mare act In Season?

Equine-Reproduction.com Bulletin Board » General Mare Questions - Volume 1 » Can a pregnant mare act In Season? « Previous Next »


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Michelle Ryder (Unregistered Guest)
Unregistered guest
Posted From: 207.200.116.11
Posted on Thursday, September 01, 2005 - 11:24 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

1 1/2 weeks ago my mini mare was ultrasounded and confirmed 30 days In Foal.
3 days ago she suddenly acted heavily In Season and allowed my stallion to breed her, so I sadly figured she absorbed the fetus.
Today she is back to extreme kicking at the stallion behavior (the same behavior she displayed after last season's breeding).

Is it possible for a pregnant mare to act In Season?}}
 

Rooty (Unregistered Guest)
Unregistered guest
Posted From: 69.196.103.102
Posted on Friday, September 02, 2005 - 10:58 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Yes, some of them do. I don't have a stallion so I don't know if letting the stallion actually breed is normal though.
 

Jos
Board Administrator
Username: Jos

Post Number: 10294
Registered: 10-1999
Posted on Friday, September 02, 2005 - 11:54 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Around 10% of mares will display estrus ("heat") while pregnant. A very small percentage of these will allow breeding by a stallion (most resist at the last moment). The trouble is that breeding while pregnant can interrupt the cervical seal and cause an abortion, which is why it's so important to check mares for pregnany and make sure they are not bred again even if they do show estrus.

I would suggest having a pregnancy check performed this time around 15 days after she was last bred to determine whether she did lose the pregnancy as a result of the breeding, or if she was not pregnant, or if she is pregnant this time. This is made even more important by the fact that it is a miniature, and with the level of incidence of dystocias in the mini, being present at the foaling is very strongly recommended.
 

Debbie Burnett
Breeding Stock
Username: Horselady

Post Number: 102
Registered: 03-2005
Posted on Saturday, September 03, 2005 - 08:45 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

My Bay mare was bred May 30th and just last month was showing interest in the stallion where she is being boarded. She was confirmed in foal mid April but I will be doing another ultrasound to be sure. She has not reacted to the stallion again since, but since I bought this mare at 5 months pregnant last year, I don't know if she is one of those mares that show some signs of heat even while pregnant. Id rather know for sure whether she has lost the foal or whether she is still in foal.
 

Michelle Ryder (Unregistered Guest)
Unregistered guest
Posted From: 207.200.116.11
Posted on Friday, September 16, 2005 - 01:49 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thank you all for your input. We just ultrasounded her again and she is NOT in foal. Major bummer!
I now worry that her allowing the stallion to breed her is what caused her to abort.
 

Jennifer D
Neonate
Username: Jennifer

Post Number: 3
Registered: 08-2005
Posted on Tuesday, October 04, 2005 - 09:00 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I was wondering if anyone knows if using MSM will cause Abortion or any birth defects. My vet cleared it, but my mare did not settle this year for no aparent reason. Anyone have an answer?



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