I am trying to breed my 9 year old reg. Appy mare. She has had at least two trys that I know of to breed. The first was with the previous owner and I was told that she displayed a false pregnancy. She would have been about 2 or 3 years old then I'm guessing. The next try was with my friends reg. Appy right before he was gelded. He was a bit young I think 14 mos? Anyway she didn't settle. We have now bred her to a 2 year old reg. Appy whose sire is a world champion. Live cover, bred first time on 4-3-01, 4-4,4-5 and maybe a few more times I'm not aware of since. She is still at the studs' farm. Today I got a message from the owner that she is still in heat. We had this mare u/s on 3-22. She was in a transitional heat with one follice @ 3 and many more smaller ones. She exhibited no signs of heat until she saw the stallion and then almost immediately raised her tail, etc. She should have been 13 days since last transition heat when she showed the next signs of being in heat. She has been at the studs for 10 days now. What should I do? Keep breeding a few more days and the U/S her or give something to ovulate? I'm new at this. First paid attempt to breed. Any suggestions?
Posted on Friday, April 13, 2001 - 03:23 pm:
Transitional phase estrus can be long and without ovulation, so they are notoriously unreliable to successfully breed on. Because they don't follow a regular routine for timing, it is also impossible to say when she "should" come back into estrus.
You cannot give her anything to ovulate unless she is in estrus and you have a follicle present that is of at least 3 cm in size - when you can use "Ovuplant"; or 3.5 cm - when you can use hCG. Neither is going to be reliable in the transitional mare though.
Your best and cheapest route to go is to take her home for a month or so until you see her having regular estrous cycles, or until your vet can ultrasound a CL which indicates she has ovulated and is therefore heading towards regular cyclicity.
Jos, 9 year old mare, showing signs of heat after breeding. Just a quick update. My mare stayed in heat for nearly 10 days, we kept breeding her every 36 hours, she finally went out on about the tenth day, bred both sides of ovulating and so far she has not come back into heat. She's 3 to 4 days past when she should have come back from the last breeding. So keep your fingers and toes crossed! We ultrasound week as soon as the vet gets an opening. Thanks for your advise and for this very informational site!
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