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Aborting at 150 days

Equine-Reproduction.com Bulletin Board » Abortion and Pregnancy Loss » Aborting at 150 days « Previous Next »


Author Message
 

Samantha
Neonate
Username: Dressage_diva333

Post Number: 1
Registered: 02-2008
Posted on Saturday, February 09, 2008 - 02:44 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have recently aquired a mare that has successfully had 4 healthy foals. After her last foal (sired by Zorn, who's EVA status is apparently unknown), she was bred again, and concieved successfully. Her blood test showed hormone levels that were not consistant with a pregnancy of 90 days (when she had the blood test done). She aborted a filly at 150 days. There was said to be a 75% chance of this mare getting in foal again. She was bred the next year and did not catch, I am not sure the details of the breeding that year, as I had left the barn where she was, but I know it was frozen semen. She was in a very stressful enviornment at her previous barn, she is much calmer and happier where I have her now. The problem is that she is older (18 this year). I am going to try and breed her in March.

But my question is; do you know what could have caused the abortion? As far as I know, she was an otherwise healthy mare. Any ideas? I am willing to go to great lengths to get this lovely mare in foal :]
 

Jos
Board Administrator
Username: Admin

Post Number: 1715
Registered: 10-1999
Posted on Sunday, February 10, 2008 - 12:29 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Without performing a necropsy, one could not even possibly conjecture on what caused the abortion. There are too many possibilities.

One that you almost certainly can rule out though would be EVA from the stallion that you mention, as mares bred to EVA "shedding" stallions will not abort, although they themselves may be infectious for the 21-28 days after breeding and may cause other mares to abort. The only way that this mare cold have aborted due to EVA would be if she came into contact with an infectious animal within the preceding 30 days prior to the abortion, and even then only if she herself did not have elevated EAV antibody titres (note that EAV refers to the virus, while EVA refers to the disease).

A good starting point to go to with this mare prior to rebreeding would be a thorough breeding soundness evaluation, with an endometrial biopsy and culture.
 

Samantha
Neonate
Username: Dressage_diva333

Post Number: 2
Registered: 02-2008
Posted on Sunday, February 10, 2008 - 12:38 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

How much do you think the horse's stress level has to do with it? She was always weaving herself into a hole there, and was just generally an unhappy horse.

She is different now..... she hardly ever weaves, and has become good friends with one of my other broodmares, she is much calmer...


I know the chances could really be slim getting her in foal, as she hasnt had a foal for 6 years, and she is older, but like I mentioned above, I am willing to try everything

Thanks for the info on EVA :D

We are getting a uterine biopsy done as soon as she comes into heat for the first time this year :D
 

Jos
Board Administrator
Username: Admin

Post Number: 1716
Registered: 10-1999
Posted on Sunday, February 10, 2008 - 09:32 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Stress is an individual factor that is mare-variable, so one cannot rule it out, but one would not necessarily include it at the top of the list either.

What blood tests were performed at 90 days that were "inconsistent with pregnancy"? That is a dicey time to be doing blood tests, as none are going to be conclusive at that point...
 

lindsey francis at least 6weeks left
Nursing Foal
Username: Madhouse1985

Post Number: 16
Registered: 01-2008
Posted on Monday, February 11, 2008 - 08:11 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

samantha my mare (before i bought her)had a foal at 9years and then was sent back to stud every year untill she was 20 she never took i bought her at 20 and shes now 23 and infoal from a yearling colt (escaped his field into mine) the people who used to race her told me she was barren she was very under weight when i got her she had been left in the field from the age of 9 lived out all winter with no shelter, rugs or extra feed other than grass for 11 years was only looked after properly when she went to stud. since ive had her shes much happyer lives in through the winter and has lots of feed.

i believe shes infoal because she happy healthy and gets lots of attention and has a stress free life plus she was bred naturaly in a field with no one watching they were left to get on with it.

i think you should keep trying she must be happier now i think that helps



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