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EVA positive stallion

Equine-Reproduction.com Bulletin Board » General Stallion Questions » EVA positive stallion « Previous Next »


Author Message
 

marina novotna
Neonate
Username: Marina

Post Number: 6
Registered: 06-2008
Posted on Thursday, March 26, 2009 - 08:46 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hello, I wanted to ask about the stallion, who just came EVA seropositive. We have to test the semen yet.
We draw blood from all of our mares to see, if any of them is positive, which seemed to be a good step. However with more thinking about that..
If the semen will come positive - is it possible to breed positive mare without the risk? What I have in mind - is it possible to find out if the mare has enough antibodies, so that she wont be infected? Or is it that once the mare went through EVA, she cant be infected again?
Please, advice.
 

Jos
Board Administrator
Username: Admin

Post Number: 2325
Registered: 10-1999
Posted on Thursday, March 26, 2009 - 06:50 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

It is important to be aware of the fact that the stallion can be sero-positive, but semen-negative. If he has been vaccinated against EVA at any time in the past, he will be likely to carry antibodies, but is not going to be semen-positive. Similarly, even if he has been exposed to the virus, he is not necessarily going to be semen-positive.

Probably the best thing for you to do right now is to review the various articles we have about EVA on our web site, which will (hopefully) answer all your questions. The articles can be found by following these links: As a quick answer to your main question, yes, it is possible to safely breed a mare to a semen-positive stallion as long as she is either vaccinated, or has adequate antibody levels through natural exposure, and is quarantined following breeding. It is not hard to do, but it is important to note that depending upon where in the world (what country) you are located, there may be local restrictions and regulations in place with which one has to conform, and some of those countries prevent breeding to an EAV-positive stallion (the virus is "EAV" while the disease is "EVA").
 

trt
Neonate
Username: Trt

Post Number: 3
Registered: 06-2009
Posted on Tuesday, March 09, 2010 - 11:01 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

What is the procedure for vaccinating for EVA? Does the stallion have to be quarantined for a certain length of time after the vaccination?

I heard that this is the case due to the vac. being a live one and that the stallion needs to be quarantined for 3 weeks after the shot every year, this could get to be very difficult!
 

Jos
Board Administrator
Username: Admin

Post Number: 2747
Registered: 10-1999
Posted on Tuesday, March 09, 2010 - 12:55 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Please access and read our articles I provided links to in the post immediately above yours, which will provide all the answers to your questions.



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