Myostatin Information

Myostatin (M1) Fact Sheet - A fact sheet providing information about M1, M1 testing and registration policies.

M1 Test Results
An updated listing of M1 test results. Test results are updated daily as received from authorized testing labs.

Click here for AGI testing prices.
Authorized M1 Testing Labs
Access the listing and contact information for the current American Angus Association authorized labs conducting tests for M1. 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 M1 status based on the M1 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.

Notice of July 25, 2011 Board Announcement on Double Muscling (M1) - Click here.

Click here for M1 Policy.

Notice of June 20, 2011 - Board Announcement on Double Muscling - Click here .