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Originally Posted by JeanieK  Do you have her pedigree? Before they could verify her parentage, they would need DNA of her and her parents.
Some Biewer owners claim that there is another breed mixed in and claim that MARS testing has shown that to be true, but it seems it is a big secret as to exactly which other breed is supposedly mixed in.
So that theory has not been proven. |
Only the Biewer terriers tested from the BTCA were tested as mixed other Biewers that have been tested have tested PURE Yorkshire Terrier.