Just wondering if anyone could give me information on how to interpret the DM stats. I often see A/N etc. What does this mean? Also how do they perform the tests and where?

A/N means a dog is a carrier
A/A means a dog is at risk for DM
N/N means a dog is clear (neither a carrier or at risk).

The test is done via a swab of the dog's mouth. You can order a kit from OFA....just go to their website and look under DNA tests. It comes with instructions. It costs $65.

Here's the link for you...
http://www.offa.org/dnatesting/dmexplanation.html

Thanks, the link helped clear up my other questions about it too!