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Fawn Calf Syndrome Update

A

Anonymous

Guest
New statement from the AAA on Fawn Calf Syndrome:
http://www.angus.org/Pub/FC/FC_Notice_032510.pdf

While I don't totally agree with them about not releasing the names of the bulls identified by the Australians thru actual use trials as being carriers-598 and Rambo- I do like what Dr. Beever says about the frequency:

the frequency of this mutation is low when compared to AM and NH and it does not appear to be rising. By waiting for the 100% accurate test, I do not believe you are creating a bigger problem. That was not the
case in 2008 where the frequency was high and appeared to be rising.
 

sic 'em reds

Well-known member
So.....

Are they comparing FCS calve to AM/NH calves????

Or Are they comapring FCSF to FCSF calves???

What's the price of wheat in Australia compared to the ((US)) :D wheat price??

Had to jab you!! :p
 
A

Anonymous

Guest
Apparently- if I gather it right- Dr. Beever doesn't believe Fawn Calf is as prevalent as AM/NH...
I think it was Dr. Denholm (Australia) that said if you had the known carrier (598 as an example) 7-8 generations back in the pedigree--the chances of the animal being a carrier was like 1 in 200...
 

sic 'em reds

Well-known member
So is there a higher correlation to FCS with, say 598, when he is closer up in the pedigree?

In these studies are they double breeding any of these sires to figure the correlation? Or are they only breeding animals with the disorder to figure out how it works?
 
A

Anonymous

Guest
sic 'em reds said:
So is there a higher correlation to FCS with, say 598, when he is closer up in the pedigree?

In these studies are they double breeding any of these sires to figure the correlation? Or are they only breeding animals with the disorder to figure out how it works?

Sic em Reds- as they said- with any known carrier of what they are almost certain is a recessive gene--the more generations away- the more times the possibility of the current calf/cow/bull being a carrier drops...

The question came up because of the Independence bull and the Freestate Barbara KAF cow (which is where the Australians have tracked this back to)- and the fact if you go looking in pedigrees you will find these in the background of many cattle--but sometimes 7-8-10 generations back--which is when the good Doctor said he put the odds of the current animal having it as 1 in 200 if those were that far back in the pedigree....

From what I understand the aussies have done both- breed/identify suspect carrier sires and breed known defect animals...I know in some of his last articles/posts Dr. Denholm has been a little frustrated that he can't get anyone from the AAA over to look at his little herd of defect cattle...

If you have a rainy day or two- and time to sort thru all the whining and BS- the Advantage Cattle site has some very informational posts by Dr. Denholm- and several other Vets/researchers knowledgeable of what is going on....
 
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