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Another timing question for Jos or Kathy

Equine-Reproduction.com Bulletin Board » Embryo Transfer » Another timing question for Jos or Kathy « Previous Next »


Author Message
 

Heidi Caldwell
Neonate
Username: Heidicald

Post Number: 6
Registered: 10-2007
Posted on Tuesday, May 26, 2009 - 03:54 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hi Jos, I am the poster who had just asked about follicle sizing/timing...

As it turns out, I was so worried my recipient was going to ovulate first because her follicle was so big WAY before donor's... Anyway, that did not happen.

My donor was bred Sat morning, ovulated sometime between sat afternoon and sunday morning. Sunday morning my recipient was at 4.4cm and given dose of HCG.

Fast forward to Today... Tuesday at noon. Follicle STILL there but is soft, 4.75ish, basically, same as the last few days.

Vet is coming back out to ultrasound again tomrrow morning. What would you think the last acceptable time for her to ovulate would be and still be a viable recipient mare?

Thanks for help, I need advice!
 

Jos
Board Administrator
Username: Admin

Post Number: 2454
Registered: 10-1999
Posted on Tuesday, May 26, 2009 - 09:30 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Welcome to our world - it's situated between a rock and a hard place!

We've already established that the recipient mare ovulating between 1 day before and 3 days after the donor mare is ideal, and that apparently isn't going to happen here, so let's look at it slightly differently...:
  • You've got the money invested in the breeding and attempted synchronization.
  • Your donor mare ovulated perfectly relative to the breeding.
  • If your recip. mare ovulates say 5 days after the donor mare, are you prepared to say "oh darn it", give prostaglandin, and start all over again?
My response to the last one would be "heck, no!!!"

So... at this stage of the game, as long as your recip. mare does ovulate (:-)), you've really got little to lose (except of course some money, but then you've got horses, so you obviously expect that anyway!!!).

If it were me, presuming that the recip. mare does ovulate tonight or tomorrow, then I'd probably still go ahead and give it a go. You might want to talk to your vet about putting the recip. mare on a progestin (i.e. Regumate/altrenogest or Progesterone) one or two days after she ovulates just to shut down the cervix a little faster, but I'd only do that as long as there's no uterine fluid present (which there shouldn't be).

Good luck, and let us know how it goes! :-)
 

Heidi Caldwell
Neonate
Username: Heidicald

Post Number: 7
Registered: 10-2007
Posted on Tuesday, May 26, 2009 - 10:42 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Interesting...

Recipient has also been getting lots of oxytocin due to some fluid.

Actually my vet said he has done transfers at the 10 day mark too. He said it is more difficult and not ideal of course, but he thinks that may be the way to go. Have you ever heard of this timing? I am not doubting him as he is very top repro vet in the southeast but was wondering if you have any experience with it?
 

Jos
Board Administrator
Username: Admin

Post Number: 2457
Registered: 10-1999
Posted on Wednesday, May 27, 2009 - 10:45 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Fortunately we have not had to experience a 10 day separation! :-)



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