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Contractural Arachnodactyly (CA) Information (formerly referred to by the name of “Fawn Calf Syndrome”)

Contractural Arachnodactyly (CA) Fact Sheet - A fact sheet providing information about CA, CA testing and registration policies.

CA Test Results
An updated listing of CA test results. Test results are updated daily as received from authorized testing labs.

Click here for AGI testing prices.

Authorized CA Testing Labs
Access the listing and contact information for the current American Angus Association authorized labs conducting tests for CA. Additional labs will be added to the page as they are approved. Click here.

Potential Carrier Report
AAA Login users can access an interactive tool to generate a report of owned animals and their CA status based on the CA test results received to date. From the AAA Login menu, go to the "Interactive" section and click on the "Potential Carrier Report". If you are not a current AAA Login user, click here to create your online profile.

Preliminary Sire Test Results. - Notice of July 26, 2010 - The following update on Contractural Arachnodactyly (CA) includes a listing of preliminary test results provided by Dr. Jon Beever, University of Illinois, on samples submitted to him from AI organizations. Click here.

Important Update on Contractural Arachnodactyly (CA) as of July 20, 2010 - Board recognizes “Fawn Calf Syndrome” as a genetic defect and formally adopts a policy governing registration of known and potential carriers, click here.

Important Update on Fawn Calf Syndrome as of May 26, 2010 - An Update from the American Angus Association, click here.

Important Update on Fawn Calf Syndrome as of March 25, 2010 - An Update from Dr. Jonathan Beever of the University of Illinois and a word from President Bill Davis, click here.

Important Update on Fawn Calf Syndrome as of December 21, 2009 - the American Angus Association, Dr. Jon Beever of the University of Illinois and Dr. David Steffen of the University of Nebraska provide reports to the membership. Please read carefully, click here.

Notice of February 13, 2009 - Association Requests Reporting on Certain Calves - At the request of Dr. David Steffen of the University of Nebraska, the American Angus Association is asking members to be on the lookout for two separate and distinct types of calves, specifically (1) any calves with severe hydrocephalus, and (2) any calves displaying characteristics of a condition referred to as fawn calf syndrome (FCS).

For Dr. Steffen's notice and description on FCS, click here.

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American Angus Association® 3201 Frederick Ave. St. Joseph, MO 64506
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