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How likely for a mare to show heat when pregnant never has before?

Equine-Reproduction.com Bulletin Board » General Mare Questions - Volume 3 » How likely for a mare to show heat when pregnant never has before? « Previous Next »


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hidden lake stable
Neonate
Username: Hiddenlakestable

Post Number: 7
Registered: 04-2011
Posted on Tuesday, May 03, 2011 - 05:25 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have a mare who made some major attitude changes, consistent with her being pregnant in the past (moved into lead mare spot, very protective of herd suddenly, agressive, more hungry; all of which have been typical of her last two pregnancies). She also usually comes into heat on day 14 after her last heat.

She as bred by AI, once in late afternoon, remained in heat for three days post insemination, was out the morning of the fourth.

She was out of heat on day 14, but today she unrinated and lifted tail for the stallion, however she still squealed at him. I still would call her "in heat". The teaser stud was very interested in her urine, but not very interested in her. I had to struggle to get him to sniff her or her tail, etc...

I obviously will have her ultrasounded before re-breeding, but what are the chances she is actually in foal and just showing hormones from a new follicle developing if she has never done this in the past?
 

Jos
Board Administrator
Username: Admin

Post Number: 3210
Registered: 10-1999
Posted on Tuesday, May 03, 2011 - 05:41 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

About 10% of mares show estrus while pregnant.

FWIW, of the mares that show, there is a slightly higher percentage that carry fillies... :-)
 

hidden lake stable
Neonate
Username: Hiddenlakestable

Post Number: 9
Registered: 04-2011
Posted on Tuesday, May 03, 2011 - 06:09 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

very interesting. I LOVE Fillies! lol.

Is there any suggestion that if they have shown heat while pregnant in past that they will do it again (or if they have not shown heat that they will continue to not show heat)?

I swear this is making me feel like I've never bred before :-( Gosh! But I was sure from how she was acting she was in foal, it was such a huge attitude change.
 

Jos
Board Administrator
Username: Admin

Post Number: 3211
Registered: 10-1999
Posted on Wednesday, May 04, 2011 - 10:16 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

All the reasons for estrus display during pregnancy are not entirely clear, consequently it is not possible to predict that it will or won't happen on subsequent pregnancies.
 

Christine Marks
Neonate
Username: Mtbcolouredmorgans

Post Number: 1
Registered: 06-2011
Posted on Friday, June 24, 2011 - 09:22 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

...ok...I had two mares, different breeds, one Arab one Welsh and they both showed signs of heat while pregnant and both had colts....very interesting...considering that only 10% of all mares show heat while pregnant and most have filles... hmmmmmmmmm
 

Jos
Board Administrator
Username: Admin

Post Number: 3317
Registered: 10-1999
Posted on Friday, June 24, 2011 - 11:30 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

All that means is that 92 other people out of a hundred owners of pregnant mares had mares that did not show estrus; and for your 2 colts, 3 other people had fillies.

Statistics. Simply because you had two mares that showed means nothing as you have to look at a lot of animals to even out the statistic. And as far as you having colts - it's not "most", but "a slightly higher percentage" that have fillies - and that's a long way from "most"!!! :-)
 

hedgerow pony farm
Breeding Stock
Username: Lotsofponies

Post Number: 204
Registered: 03-2009
Posted on Thursday, June 30, 2011 - 10:11 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I was wondering if your mares did a wink and squeal or a full feldge break down where you can drag them away from the stallion?



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