I understand that. I was just trying to be helpful, because knowing the genetics is VERY important when you are breeding, especially with merles. And you did mention breeding, so yes, off it went

These days people who are looking for companion animals do not necessarily look for champions, but rather for healthy pets.
You should make sure that your dogs are not carriers of CEA and PRA (not as common), as well as hypothyroidism. Hip x-rays are also a plus.
For thyroid testing....I use Dr. Jean Dodds Hemopet:
http://www.hemopet.org/services.html
I LOVE Dr. Jean Dodds. I follow her philosophies and when you get the results she interprets everything for you very clearly.
For CEA....there is a lab in NY
http://www.optigen.com/
These are in the US. I am not sure about Canada's labs or if you can send blood to the US for testing.
Your vet should have that information for you though. Most vets are familiar with genetic testing, and have labs that they use (at least the vets around here are). Maybe if your vet isn't familiar, you may want to research out another vet that can give you some more information.
Just my 2 cents