I would agree. If neither sample was mixed up, and the results are conmfirmed for both dogs (And U Minn should do the retesting at their expense!) then the test may not be reliable. That issue needs to be settled.

Checked out the info on the dam and found out she has NOT been tested. Sorry for posting before I had all the facts in hand.

Well, that explains that. Thanks for having the candor to investigate and post your findings about the dam.