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Breeding again in 17 days?

Equine-Reproduction.com Bulletin Board » General Mare Questions - Volume 3 » Breeding again in 17 days? « Previous Next »


Author Message
 

Diana Gilger
Senior Stallion or Mare
Username: Kdgilger

Post Number: 4246
Registered: 01-2008
Posted on Monday, May 28, 2012 - 12:52 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hey all, I have a question. In the spirit of my horses keeping me crazy, I bought a new stallion this year who is very young (just 2) and has acted scared to death of my mares. The lead mares were ugly to him, and he wouldn't even make eye contact, so I sent them off to be bred to another stallion, figuring he'd need more time to mature. Low and behold, they bred the last days on May 9 and 10. Since the mares have come home, the stallion has been very vocal (perhaps he missed them? or smelled the other stallion on them?) Long story short, he's now very interested in them, and talking them up quite well. This morning, they both stopped at his stall and flirted, instead of trying to kill him, so I kept them separated, not wanting him to get brutalized by them. When I brought them in tonight, the one mare was actually squatting and peeing and basically BEGGING him....he dropped, and I thought it was a good time to allow interaction, as I was pretty sure she wasn't going to throttle him. He sure enough bred her...which is good and bad, I guess. I looked at dates, and now I have to wonder WHY my mare would be standing for him 17 days after her last cover? The weird thing is, this mare usually only stands for 3-4 days, and breeds twice at MOST. (every other day) When she bred the other stallion, she bred him for 12 days......what's the possible situation here? And why would she do that?
 

Jos
Board Administrator
Username: Admin

Post Number: 3571
Registered: 10-1999
Posted on Monday, May 28, 2012 - 09:40 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)


quote:

I have to wonder WHY my mare would be standing for him 17 days after her last cover? The weird thing is, this mare usually only stands for 3-4 days


Well, it appears that you don't know exactly when the mare ovulated if you are going off the last cover, and mares will not reject a stallion until progesterone levels are elevated enough to cause that effect - the progesterone coming from the CL which forms after ovulation - and that can take 24-48 hours after the ovulation. Consequently 17 days + 2 days = 19 days, and the average inter-ovulatory period of the mare is 21 days, so it seems right on target. The one caveat that I will make is that some pregnant mares will still stand for a stallion, even to the point of intromission. The only down side of that is that usually if the pregnant mare is bred, loss of the prior pregnancy is a common sequela as the breeding stallion interrupts cervical integrity (causing the pregnancy loss), which is why an ultrasound is always recommended prior to rebreeding.

Having said that, if the mare stood for the stallion for 12 days previously, it is likely that she was transitional at that point, and indeed may not have ovulated in that "cycle" (note inverted commas, as it isn't really a cycle, not having ovulated).
 

Diana Gilger
Senior Stallion or Mare
Username: Kdgilger

Post Number: 4247
Registered: 01-2008
Posted on Monday, May 28, 2012 - 10:03 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Typically, (5 yrs in a row) this mare breeds back 7 days post foaling on foal heat, only breeds once a year, and is covered. No problems with this one. I kept thinking 17 days seemed kinda short, as I usually tease my other mares, and watch them starting around day 21. I have never seen this mare actually 'cycle' at all....she came to me bred, and i've kept her bred. LOL If by chance, the new stallion caused loss of any previous pregnancy, I won't be upset....I just thought it was weird, as I planned to have her Ultrasounded (my vet does it at day 18), and I've never had one back in this quick. Thanks for the reply! Makes sense!
 

Diana Gilger
Senior Stallion or Mare
Username: Kdgilger

Post Number: 4248
Registered: 01-2008
Posted on Monday, May 28, 2012 - 10:06 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Also, I don't have to worry about figuring out which stallion got her, as she is a homo red mare, and the first stallion I bred to is homo red too....therefore they can make only red foals. The 2nd stallion is homo black, and they CANT make red foals !
 

Jos
Board Administrator
Username: Admin

Post Number: 3572
Registered: 10-1999
Posted on Monday, May 28, 2012 - 05:52 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

That makes it easy!! :-)
 

Diana Gilger
Senior Stallion or Mare
Username: Kdgilger

Post Number: 4250
Registered: 01-2008
Posted on Monday, May 28, 2012 - 06:24 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

sure enuff!



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