Neuropathic Hydrocephalus Information

Neuropathic Hydrocephalus (NH) Fact Sheet - A fact sheet providing information about NH, NH testing and registration policies.

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

Click here for AGI testing prices.

Authorized NH Testing Labs
Access the listing and contact information for the current American Angus Association authorized labs conducting tests for NH. 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 NH status based on the NH test results received to date. From the AAA Login menu, go to the DNA > Genetic Condition Tools section and click on the "Potential Carrier Report" menu option. If you are not a current AAA Login user, click here to create your online profile.

An important message from American Angus Association President Jay King - in regard to policies on Arthrogryposis Multiplex (AM) and Neuropathic Hydrocephalus (NH). Click here.  

Important Update on Neuropathic Hydrocephalus (NH) - On Wednesday, April 29, 2009, the Board of Directors of the American Angus Association conducted a special meeting by phone. The purpose of the meeting was to discuss the ongoing work of a Special Committee appointed by the Board to examine the Association's recently-enacted genetic defect policy and that policy's applicability to Neuropathic Hydrocephalus (NH). Click here.  

Preliminary Sire Test Results - Notice of April 13, 2009 - The following update on neuropathic hydrocephalus (NH) 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 Hydrocephalus - On February 13, 2009, the American Angus Association posted a notice setting forth a request to Association members from Dr. David Steffen of the University of Nebraska, asking them to be on the lookout for calves born with an extreme form of hydrocephalus. That posting included pictures of affected calves. Information received by the Association since that day has been promptly provided to Dr. Steffen who, in turn, shared it with Dr. Jon Beever at the University of Illinois. Today, we received a report from Dr. Beever in which he concludes that the presence of the extreme form hydrocephalus in Angus cattle is the result of a recessive mutation. Click here to read the research update.

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