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Poor heat cycles

Equine-Reproduction.com Bulletin Board » Breeding Problem Mares - Volume 1 » Poor heat cycles « Previous Next »


Author Message
 

Rachael W
Neonate
Username: Lee

Post Number: 2
Registered: 06-2006
Posted on Friday, June 30, 2006 - 01:14 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

A couple of our mares have had very mild heat cycles - they will not show any or show very little interest in the teaser stallion, little edema - just kind of an overall lack of keen interest in this. They seem luke warm with the hormones. We had 2 weeks of non stop rain and cool weather. I have heard that can effect them hormonally - but when do they recover? I am breeding with frozen and am not keen myself to be breeding them when they aren't as receptive to this as they have been in prior years. Is there anything I can do? Let this cycle go by and short cycle or??
Also - is it usually necessary to change teaser stallions year to year - do the mares just want some variety??
Thanks
 

Jos
Board Administrator
Username: Jos

Post Number: 10810
Registered: 10-1999
Posted on Saturday, July 01, 2006 - 02:27 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

If the mares are ovulating, then there is no physiological difference in the cycle. A brief change in the weather is not gong to halt the hormonal cascade associated with cyclicity. Note too that light is the primary stimulus to start cyclicity in the spring, and it doesn't take much of an increase in light to achieve that. You can safely discount the weather as a factor to consider.

If your mares are ovulating, why would you not breed them? I would.
 

Rachael W
Neonate
Username: Lee

Post Number: 4
Registered: 06-2006
Posted on Sunday, July 02, 2006 - 11:38 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Using frozen, purchased by the dose with one dose available. The mare doesn't appear to be having the hoped for hormonal cascade. It is now appearing like an anovulatory follicle



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