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Recipient mare question

Discuss the pros and protocols, and the cons and costs of embryo transfer.

Moderator: Jos

Recipient mare question

Postby jdeboer01 » Fri May 10, 2013 9:58 am

Can a 6 year old maiden mare (hymen intact), who has a large amount of uterine fluid prior to ovulation still be used as an ET recipient mare? If the fluid is checked and is sterile, without neutrophils, and an oxytocin protocol is used to clear the fluid from the uterus, could she still be a recipient candidate?

Thanks!
jdeboer01
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Re: Recipient mare question

Postby Jos » Fri May 10, 2013 10:59 am

While obviously alack of fluid would be preferable, as long as the fluid doesn't persist into diestrus and there is no pathogenic presence, you should be fine. You might talk to your vet about giving the mare some estrogen on the cycle before transfer as well, as that can assist.
We're always happy to try and help, but don't forget to check the articles section
of the website too, which has a search engine to help you look for answers!
:)
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Jos
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Re: Recipient mare question

Postby jdeboer01 » Fri May 10, 2013 11:57 am

Jos wrote:While obviously alack of fluid would be preferable, as long as the fluid doesn't persist into diestrus and there is no pathogenic presence, you should be fine. You might talk to your vet about giving the mare some estrogen on the cycle before transfer as well, as that can assist.


Okay, great! Thanks! Glad to know it's not completely hopeless. This particular mare was given a 10 day P&E protocol with prosta on day 10 as well to synch her up with the donor mare. I didn't find out about the fluid until the vet checked her to confirm where she was at on day 18. Luckily, I have a second mare who's synched up as well without the fluid, but I'm hoping to get two ET's from the donor this season, and would have to use the currently fluid filled mare as the recipient for the second try.

We will likely be giving the donor mare prostaglandin after she is flushed, and also to the 2nd potential recipient to keep them synched. Is it possible to continue to give the fluid tendency mare estrumate or oxytocin as she comes back into estrus to prevent a fluid build up? Why would a maiden mare that's clean even get a fluid build up in her uterus prior to being bred? What causes that?

Thank you!
jdeboer01
Neonate
 
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Re: Recipient mare question

Postby Jos » Fri May 10, 2013 7:32 pm

Use of prostaglandin may not produce close enough synchronicity on subsequent cycles, although it's worth a go I suppose.

Certainly you can give the recipient mare oxytocin through her estrus, and/or Estrumate up to 12 hours after ovulation (but not after that) to reduce fluid. It would be of value knowing the cause of the fluid. You indicated previously that the fluid was sterile, but how was that determined?

If it were my mare, I would also use the Estrogen as I mentioned previously.
We're always happy to try and help, but don't forget to check the articles section
of the website too, which has a search engine to help you look for answers!
:)
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Re: Recipient mare question

Postby jdeboer01 » Sat May 11, 2013 12:55 pm

Jos wrote:Use of prostaglandin may not produce close enough synchronicity on subsequent cycles, although it's worth a go I suppose.

Certainly you can give the recipient mare oxytocin through her estrus, and/or Estrumate up to 12 hours after ovulation (but not after that) to reduce fluid. It would be of value knowing the cause of the fluid. You indicated previously that the fluid was sterile, but how was that determined?

If it were my mare, I would also use the Estrogen as I mentioned previously.


I don't know (yet) if it was sterile. The question was hypothetical to find out whether the fluid itself would be a deal breaker even if it was sterile. I had the vet come out and do a swab for culture and cytology. I'm waiting on that now. My donor mare ovulated, and I have given this mare Deslorelin to keep her synched in case I can use her in subsequent cycles. (I'm certainly not going to use her for this one until I find out what's going on with her.)
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