I am a first time breeder, but feel I have a very knowledgeable vet working with me. I would like to get opinions about the timing of my breeding and my chances of conception.
Tuesday night, my mare had a 39mm follicle. I had the stallion collected on Wednesday this week, fedexed for Thurs am delivery (we are on different coasts). At time of insemination (around noon on Thursday) my mare had about a 40mm follicle. She was inseminated and given a shot of HCG. She was re-bred with the remaining bag 50cc Friday. My vet said the quality of the semen looked excellent, with good motility even on Friday under the scope. Today is Saturday, vet said she still had not ovulated as of 7pm tonite but said follicle was VERY ready, and soft. She thought it would burst by Sunday am.
Is this too late an ovulation for the semen to have any chance of being alive enough? What if she doesn't ovulate until Sunday evening? Also, she had flushed this mare out before breeding because she had some infection. She said there weas still some fluid left in the uterus and that she will prob. give some more Oxytocin shots to help dispel that tomorrow - Sunday.
Any thoughts on this? In general, should I have waited a little longer before ordering semen? Is there a "magic" number of follicle size before you should have a stallion collected? My vet assured me that this was optimum timing, I would like more opinions on this, as I would like to do it right if I have to go through it again.
Elizabeth Hardy Posted From: 126.96.36.199
Posted on Tuesday, April 01, 2003 - 02:01 pm:
Mike I order semen when my vet tells me it is time to do so
The only way you are going to Know if the Semen is viable is to have the vet check it prior to insemination esp if it is a couple of days old. It sounds as if your vet knows what he is doing. If she is not pregnant this time then for the next time just go with your vets recommendations as to when to request Semen and also check with the stallion owner to see when he collects his stallion.
Mike C. Posted From: 188.8.131.52
Posted on Tuesday, April 01, 2003 - 03:53 pm:
Thanks, Elizabeth for responding.
I did order when vet advised, I am just mainly concerned because she ovulated so late in the game. I now know she ovu'd some time overnight on Saturday/sunday am. Insem'd Thurs & Friday mid-day.. hmm.. not sure if she'll catch. We did look at semen under scope on friday, looked very good/prog. mobile. Keeping my fingers crossed. That HCG just took a really long time to induce ovulation on her, I think.
A good rule of thumb is that the follical progresses about .5 a day.. SUpposedly. I usually don't even ship seman until they are a .40. Semen can live 72 hours in a mare usually best viable at 48% so if she burst on sunday.. You could still get her in foal.. Good Luck.. A/I is very difficult and stressful....
Mike C. Posted From: 184.108.40.206
Posted on Monday, April 21, 2003 - 10:53 pm:
Well, Good News! Our mare was confimed in foal at 18 days! That was some quality sperm!! Hopefully, the U/S at 30 days will be the same...
Thanks for comments!
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