Then I imagine all the others in the litter will have had their records amended, and any of their offspring.

>the fact the dog is not going to be retested is neither here nor there and they can hardly demand it especially if he is no longer in their possession.

The breeder of my boys grandparents said he had moved the grandfather on and didn't have contact details of the new owners, strange how litters have recently been registered to him and still under his name.

There were 10 pups in the litter my boy came from, and all records have now been amended to ready hereditary carriers - as one parent affected the other clear.