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EED with no obvious reason

Equine-Reproduction.com Bulletin Board » Breeding Problem Mares - Volume 1 » EED with no obvious reason « Previous Next »


Author Message
 

Megan A Brown
Breeding Stock
Username: Fabmeg

Post Number: 139
Registered: 04-2006
Posted on Wednesday, May 31, 2006 - 02:13 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have a 5 year old mare that we bred last year, who was in foal at 14 days, and appeared to be in foal all winter, and by that I mean we saw some behavioral changes and a slight increase in weight. This spring, no foal. We never noticed an abortion so she must have absorbed or aborted really early. This spring, we breed her and she was in foal at 14 days, but at 25 days, no embryo. Were are planning on doing a progesterone assay to see if she is just not producing enough to stay pregnant, but I was wondering how best to go about it? We havenít done a culture or cytology on her yet, but my vet is not sure what that those would tell us anything we didnít all ready know. She has good breeding conformation, and her 14 day embryo looked health. Both breedings were to the same stallion and she is a maiden mare. Before the last breeding her uterine tone seemed off, but she felt normal at 14 days.
 

Jos
Board Administrator
Username: Jos

Post Number: 10706
Registered: 10-1999
Posted on Wednesday, May 31, 2006 - 02:29 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

With respect to your vet, [s]he cannot possibly know what pathogen is, or even if there is a pathogen, in your mare's uterus! A culture and cytology would be my starting point.

There are other possibilities for EED, the most common of which is endometritis - caused either by a pathogen in the uterus (which is what you should be looking for with the culture and cytology), or post-breeding inflammatory response that does not resolve in the desired time frame. In the latter case, use of an oxytocin protocol is cheap and easy.

I would start with a good breeding soundness examination for this mare by a veterinarian that is experienced in equine reproduction - preferably a theriogenologist.

WRT the loss during the winter - note that a pregnancy is not "absorbed" (resorbed/reabsorbed etc.), but is lost through the cervix. You would not necessarily see such a loss, but that is a technical point I thought I would correct... :-)



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