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Twin US Question

Equine-Reproduction.com Bulletin Board » General Mare Questions - Volume 2 » Twin US Question « Previous Next »


Author Message
 

Bonny
Breeding Stock
Username: Bonny

Post Number: 109
Registered: 03-2008
Posted on Tuesday, May 27, 2008 - 02:48 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have been a bit concerned that my mare is showing her pregnancy at 100 days. So I have pictures into my vet and waiting for his reply. In the meantime I called a good equine hospital, that is almost 2 hours from us to ask for an opinion. I was told that at 100 plus days they wouldnt be able to tell by US if my mare was twinning or not. She said that everything would look like a blob.
So I asked if high levels of estrogen sulfate may detect twins. She will be calling me back after she talks to the vet.

So once again I turn to yall. Has anyone ever had twins detected after 100 days?I understand the twinning issues and hopefully my mare is not twinning. But If she is I need to know.By the way this is her second pregnancy. The grass in the picture she gets 15-30 mins on once a day.

Her in January:
http://i180.photobucket.com/albums/x12/4793ShyAnne/donkey023-2-1.jpg
Day 100:
http://i180.photobucket.com/albums/x12/4793ShyAnne/5-25-08021.jpg
http://i180.photobucket.com/albums/x12/4793ShyAnne/5-25-08022.jpg
http://i180.photobucket.com/albums/x12/4793ShyAnne/5-25-08027.jpg
 

Jos
Board Administrator
Username: Admin

Post Number: 1962
Registered: 10-1999
Posted on Tuesday, May 27, 2008 - 06:30 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

The problem with any potential pregnancy detection at this stage (from as early as 65 through to about 150 days) is that the weigh of the pregnancy can cause the fetus itself to drop over the pelvic brim into the abdominal cavity, and out of reach of the ultrasonographer. If it wasn't for that, it shouldn't be a problem for an experienced ultrasonographer to identify a pregnancy or possibly two pregnancies, as there should be a very visible heart beat, as well as other easily identifiable structures (head, thorax showing ribs etc.) - but, as I say, the issue at this stage is actually reaching the darn thing[s].

Estrogen levels will only identify pregnant vs. non-pregnant, not twin presence.

FWIW, the fetus at this stage (~100 days) is only about the size of a rat, so it is not going to cause a significant increase in diameter of the mare.
 

Bonny
Breeding Stock
Username: Bonny

Post Number: 110
Registered: 03-2008
Posted on Tuesday, May 27, 2008 - 07:38 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Jos what about an external US at this stage?
 

Jos
Board Administrator
Username: Admin

Post Number: 1963
Registered: 10-1999
Posted on Tuesday, May 27, 2008 - 09:15 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

If you are lucky and have a good ultrasound and ultrasonographer, and a small mare, then it might be a possibility, but consider that there is a lot of tissue between the ultrasound probe and the fetus...
 

Bonny
Breeding Stock
Username: Bonny

Post Number: 111
Registered: 03-2008
Posted on Tuesday, May 27, 2008 - 09:30 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thank you. Would it be a bit easier to do an external later as the foal(s) grow?
 

Jos
Board Administrator
Username: Admin

Post Number: 1964
Registered: 10-1999
Posted on Tuesday, May 27, 2008 - 10:31 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Very much the same issues will apply. Talk to your vet who has the equipment, and see what they recommend.
 

Bonny
Breeding Stock
Username: Bonny

Post Number: 113
Registered: 03-2008
Posted on Wednesday, May 28, 2008 - 10:50 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thank you very much.

Basically they said that I am between a rock and a hard place. And that I should continue to feed her good quality feed, I am, and that about 3 months from due date to start increasing her feed amount.

They also said that the fat content is more important than the protein levels? What do you recommend? right now she is on a 12%-8 fat. She is a hard keeper. I was thinking that a 14% protein would be a good option for late gestation.
 

Jos
Board Administrator
Username: Admin

Post Number: 1966
Registered: 10-1999
Posted on Wednesday, May 28, 2008 - 11:33 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

A balanced diet is recommended throughout pregnancy. We have had good results using Progressive Feeds, and they have an article about feeding the pregnant mare if you follow that link.
 

Bonny
Breeding Stock
Username: Bonny

Post Number: 114
Registered: 03-2008
Posted on Wednesday, May 28, 2008 - 12:00 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I totally agree. I have always felt that a good diet is essential, for every horse, not just pregnant mares.
Thanks again, thats a great article.



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