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Head Administrator

Registered: 06-2003
Location: North Yorkshire
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Freemartin blood test


I have blood tested two potential freemartins with one positive for the Y chromosome and one negative.
How accurate is a negative result?

---
Bickleygate holsteins

"I have not failed 1000 times, I have discovered a 1000 ways that do not work"-Thomas Edison
15/10/2014, 16:26 Link to this post PM via Email   PM via Forum
 
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Registered: 03-2005
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Re: Freemartin blood test


We had an Atwood twin, that passed the initial vaginal probe screening, so I sent blood, and she came back as ok to breed. She held first service, but had very traumatic calving, and while she recovered, I had to sell her. I remember her feeling normal, when I bred her.

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Buckeye seems like a one man wrecking crew out to rid the world of injustice. ----- Mayjay
16/10/2014, 19:17 Link to this post PM via Email   PM via Forum
 
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VG85

Registered: 07-2013
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Re:


No test is 100% accurate. You could always have the vet to check her once she is old enough. I was debating whether to get a blood test done for one of my heifers born twin to a male. I figured I might as well save my money and wait, then get the vet to ultrasound her when she's old enough to be bred. Now, if she turns out to be a non-breeder, we'll grow her a few more months and then she'll make some good steaks.
17/10/2014, 1:12 Link to this post PM via Email   PM via Forum
 
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Registered: 03-2005
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Re: Re:


quote:

AmandaS101 wrote:

No test is 100% accurate. You could always have the vet to check her once she is old enough. I was debating whether to get a blood test done for one of my heifers born twin to a male. I figured I might as well save my money and wait, then get the vet to ultrasound her when she's old enough to be bred. Now, if she turns out to be a non-breeder, we'll grow her a few more months and then she'll make some good steaks.



The blood test should be 99.9% accurate, and the error, would be on the human side of the equation.

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Buckeye seems like a one man wrecking crew out to rid the world of injustice. ----- Mayjay
17/10/2014, 2:23 Link to this post PM via Email   PM via Forum
 
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EX93

Registered: 11-2012
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Re: Freemartin blood test


What I was told is the test is 100% accurate that hormone wise it will breed but doesnt count for the fact that she could still have deformity in her tract.
17/10/2014, 13:10 Link to this post PM via Email   PM via Forum
 
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Re: Freemartin blood test


BR, gotta account for human's screwing up the ID, sample contamination, etc

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Buckeye seems like a one man wrecking crew out to rid the world of injustice. ----- Mayjay
17/10/2014, 18:29 Link to this post PM via Email   PM via Forum
 
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GP81

Registered: 08-2014
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Re: Freemartin blood test


At what age can this blood test be done?
15/11/2014, 4:00 Link to this post PM via Email   PM via Forum
 
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Re: Freemartin blood test


Anytime.

---
Buckeye seems like a one man wrecking crew out to rid the world of injustice. ----- Mayjay
18/11/2014, 5:12 Link to this post PM via Email   PM via Forum
 


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