@lisastewart:
One of the dogs that is from my breeding is tested as affected and will turn 16 next month, he is still not spilling. The kennel that produced him has been breeding for over 30 yrs and never had a dog show signs of fanconi, yet it did occur in at least one dog.
And Yes, I can tell you of three other that I know of that tested Affected and are not spilling, however HAVE produced Fanconi offspring. Should a responsible breeder take that chance… I don't care if you breed 1000 dogs, and produced only ONE Fanconi affected when there is a chance to avoid it is not acceptable.
And just because a dog tests affected, doesn't mean you can't breed him (I use the "him" because I don't personally believe an Affected bitch, even one not spilling should ever be used). If you have an Affected tested male, you breed to clear bitches..