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.
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.
Potential Carrier Report
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.
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.