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Could the Ultrasound be wrong?

Equine-Reproduction.com Bulletin Board » Breeding Problem Mares - Volume 2 » Could the Ultrasound be wrong? « Previous Next »


Author Message
 

Elizabeth
Weanling
Username: Storminthenight

Post Number: 30
Registered: 04-2007
Posted on Tuesday, September 08, 2009 - 02:09 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

My mare Lexy was pasture bred in late June, early July. She hasnt shown any signs of heat since then, and will usuaully flash at any old horse out in the field if she is.
We had her ultrasounded yesterday and they couldnt find a baby, and said she had a follicle that was around 27.
She has had 4 foals in the past (last one is 4 years old) and her bladder was full at the time.

Is there any way the ultrasound could have missed the baby? we dont really want to try again this year as its so late, so will probably wait till next spring to try breeding again, but are just wondering about the possiblity of her being pregnant now.

I was reading that it can be hard to detect a fetus between 60-150 days because the baby is low, and also that mares can produce follicles while pregnant, but I'm not expert, which is why I'm asking here.
 

Elizabeth
Weanling
Username: Storminthenight

Post Number: 31
Registered: 04-2007
Posted on Tuesday, September 08, 2009 - 04:08 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I forgot to mention, they checked her cervix and it was closed/tight.
 

Jos
Board Administrator
Username: Admin

Post Number: 2616
Registered: 10-1999
Posted on Tuesday, September 08, 2009 - 11:00 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

You are correct in your summation that a fetus can be difficult to detect from about 60 days (or slightly later) through 150 days. If your mare is in that time frame now, it is possible that she is pregnant. I would recommend that you have an estrogen assay performed of blood or urine sometime after about 120 days of pregnancy.

Follicular presence means nothing one way or the other, as they are seen during pregnant and non-pregnant mares.
 

Elizabeth
Weanling
Username: Storminthenight

Post Number: 32
Registered: 04-2007
Posted on Wednesday, September 09, 2009 - 09:59 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thank You Jos.
Would it be best to take her into a vet, or maybe get one of those Wee foals tests?
 

Jos
Board Administrator
Username: Admin

Post Number: 2617
Registered: 10-1999
Posted on Wednesday, September 09, 2009 - 10:48 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Either is a viable option.
 

Elizabeth
Weanling
Username: Storminthenight

Post Number: 33
Registered: 04-2007
Posted on Wednesday, September 09, 2009 - 01:51 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Ok, thank you



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