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Standing heat, long cycle, clear urine. Do I keep breeding?

Equine-Reproduction.com Bulletin Board » Breeding Problem Mares - Volume 2 » Standing heat, long cycle, clear urine. Do I keep breeding? « Previous Next »


Author Message
 

Barbara Lewis
Yearling
Username: Baraka

Post Number: 70
Registered: 06-2008
Posted on Tuesday, July 06, 2010 - 10:02 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Obviously (from my last question), I have opposite problems here with two different mares. This is a client mare here for breeding.

1994 mare, has had 8 foals up to 2009. Apparently she has been no problem, until now. Cycles have previously all been normal, and she got in foal immediately.

Upon arriving ultrasound showed some retained fluid, so Oxytocin protocol has been used. The following has been her experience here:

5/14 - 5/24, (10 days!) she was in heat and bred every other day until she went out, plus oxytocin between. After she went out of heat, she was put on Regumate (owners request).

6/18, Ultrasound showed that she was not in foal, so was taken off Regumate.

6/26 & 6/27 she was given Lutylase, and...
6/28, she came back in heat. She was given Oxytocin on her 2nd day, and bred on her 3rd & 5th day (+ Oxytocin after).

7/1 (or 2) her urine began to clear. No other way to describe it but looked like light lemonade.

7/6, she's still in heat, urine is clear, with yellow tint.

I stopped breeding her on her 5th day. Should I have, or should I now, continue to breed her until she stops showing? She breaks down quickly at the sound of the stallions voice!

Does clear urine always mean that the mare has, or is about to, ovulate? Assuming so, I thought she had ovulated days ago!

I don't know what to do with this mare. Do I continue this grueling routine?
 

Jos
Board Administrator
Username: Admin

Post Number: 2938
Registered: 10-1999
Posted on Tuesday, July 06, 2010 - 02:10 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

While a change in the urine condition from cloudy to clear typically indicates a change in the secretion levels of estrogen from the follicle, there are no absolutes and ultrasound is the only way you are going to know for sure. As this is a clients mare you should have the mare checked.
 

Barbara Lewis
Yearling
Username: Baraka

Post Number: 71
Registered: 06-2008
Posted on Tuesday, July 06, 2010 - 03:54 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thank you. I was successful in getting an appointment for ultrasound for tomorrow afternoon. Hopefully something will come to light then.

I'd initially suggested that she be sent directly to you, then to Nedpoint for quarantine & export, but they wanted her to come here for live cover. Me thinks they should have taken my advice
 

Barbara Lewis
Yearling
Username: Baraka

Post Number: 72
Registered: 06-2008
Posted on Friday, July 09, 2010 - 10:49 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Well, as one might expect, the mare was out of heat by the time the veterinarian arrived. It was decided to wait until a pregnancy check to ultrasound her.

Question: How uncommon is it for a mare to continue to show heat symptoms several days after she has ovulated? If it occurs with any regularity, what is the longest number of days it might go - after ovulation?
 

Jos
Board Administrator
Username: Admin

Post Number: 2944
Registered: 10-1999
Posted on Saturday, July 10, 2010 - 10:33 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

The mare will not become resistant to the stallion's advances until her progesterone levels become elevated enough to cause that resistance. Progesterone is secreted by the Corpus Luteum (CL) which is the structure that forms in the area on the ovary evacuated by the ovulating follicle. Progesterone levels will typically become elevated enough to cause resistance by about 24-48 hours after ovulation, but in some mares may take longer.



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