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Pregnancy VS Cyst. Any opinions?

Equine-Reproduction.com Bulletin Board » Breeding Problem Mares - Volume 2 » Pregnancy VS Cyst. Any opinions? « Previous Next »


Author Message
 

Samantha
Breeding Stock
Username: Dressage_diva333

Post Number: 105
Registered: 02-2008
Posted on Friday, April 25, 2008 - 12:37 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have a 10 year old Thoroughbred mare, who has previously had 5 foals. She was biopsied in early March, and has a Grade IIA uterus.

She was first ultrasounded at 17 days (so she probably ovulated two days post breeding), the results looked like a possible 15 day pregnancy, but she has a history of a cyst. The cyst looks like a 14 day pregnancy. Uterus had good tone, and cervix was tight.

The next ultrasound was at 20 days. At which the vet said it looked like an 18 day pregnancy. Uterus wasnt quite as toned, but cervix was tight.

I teased her at 22 day post breeding, and he did not show any signs of heat (where she is notably good about letting us know when she is coming into heat, and when she is ready to breed)

So here we are at tonight: 23 day post breeding. Looked like a 21 day pregnacy, with a bit of fetal detail. The vet said that if he could find that cyst, then he would be confident that she is pregnant, but he cant. I am getting very irritated and frustrated with not knowing, because I need to tell the stallion owner. Her uterus was progesterone dominated, and cervix was tight with no significant follicles.

So, does anybody have ultrasound pictures of a 21 day pregnancy, and an ultrasound picture of a cyst?

Also, how would a retained CL present?

The vet seem to think that "thing" in question is growing, which makes me think its a pregnancy, but he can't find the cyst.


Any thoughts?
 

Tracy Smith, Tali due 6/08
Senior Stallion or Mare
Username: Tracys

Post Number: 1216
Registered: 08-2007
Posted on Friday, April 25, 2008 - 12:53 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I don't have much experience in this but she sounds pregnant to me
 

Samantha
Breeding Stock
Username: Dressage_diva333

Post Number: 106
Registered: 02-2008
Posted on Friday, April 25, 2008 - 12:55 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I think she's prego also, and I know it sounds a bit ridiculous, but I get the "pregnant vibe" from her.lol.


But the vet doesnt seem to think so :S
 

Jos
Board Administrator
Username: Admin

Post Number: 1861
Registered: 10-1999
Posted on Friday, April 25, 2008 - 10:16 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

So, does anybody have ultrasound pictures of a 21 day pregnancy, and an ultrasound picture of a cyst?

Check out this article on the web site. Note that there is no way to differentiate between some cysts and early pregnancies, but by 23 days there should be a heartbeat visible, and cysts don't have a heartbeat.

Make sure in the future that the uterus is mapped prior to breeding, and cyst position and size is recorded! :-)

Also, how would a retained CL present?

There would be a CL visible on ultrasound; Progesterone levels would be elevated; and the mare would not be in estrus ("heat").

Note incidentally that checking the mare by teasing at 22 days is a bit late. The interovulatory period averages 21 days, but can vary by up to a couple of days in either direction, so it is quite possible that the mare had already returned to estrus, ovulated, and gone back into diestrus. If you want to check by teasing, then one should start teasing at 14 days after the prior estrus, and tease every other day to day 26, but which time if there is no estrus, there is a 90% chance of pregnancy.
 

Laurie Ridgeway
Neonate
Username: Lridgeway

Post Number: 2
Registered: 06-2007
Posted on Wednesday, June 11, 2008 - 04:46 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

If a mare retains a CL what needs to happen for her to release it?
 

Jos
Board Administrator
Username: Admin

Post Number: 2023
Registered: 10-1999
Posted on Wednesday, June 11, 2008 - 05:33 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Typically, treating with prostaglandin.



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