WTG Sandi! Please let me know if I can be of any help to you. I'm always willing to write letters, e-mails, do phone calls, etc.
Here are some links that I found they may help or they may not....
http://www.greatpets.com/home/dogs/h...netic_diseases http://www.canismajor.com/dog/genetic1.html http://www.greatdanerescueinc.com/de...retheydeaf.htm There is info. in the last paragraph re: genetics & deafness
This one looks possibly good...
http://www.vetinfo4dogs.com/dinherit.html
These are ones that I found on a quick search & hopefully one of them might help you.
Good luck Sandi & again let me know if there is anything that I can do.
:)
Brooke