We wanted to breed a mare on foal heat. This is a 2001 AQHA mare with 1 previous foal plus this year's foal. I am not sure of any "issues" last year. She was at the vet for last year's breeding; she did not have a foal last year. Bred by AI and took on the first try. She was not there for very long, so I don't think that there were too many problems. She foaled easily on 4/29. Checked on 5/9, largest follicle 26mm. Checked on 5/12, largest follicle 25mm. Checked on 5/16, largest follicle 24mm. Uterine tone is good.
What's the deal? Why aren't we getting any bigger follicles? Suggestions? Ideas?
Are you sure she hadn't already ovulated when you had her evaluated on 5/9? The average range of post-foaling ovulation is 5-15 days, so by 5/9 she would have already been 10 days post foaling. She may then be developing a new follicular wave, or she may be going into lactational anestrus.
Check progesterone levels, or u/s carefully looking for a CL.
Yes, it is possible that she had already ovulated, but I am relying on the vet to be able to tell me that.
The vet does not like to breed them before 9 days post-foaling.
I guess I am wondering why the vet isn't suggesting these things? Shouldn't he have these ideas for us?
I just wondered if we couldn't be doing something to move things along rather than ultrasounding the mare every few days with no progression towards actually getting her bred.
(Message edited by jjqh on May 19, 2008)
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