I believe in Germany and Biewer Yorkies are still breeding Biewer to Yorkies. Some people feel it is too soon to close the stud book because of the limited gene pool on Biewers. Biewer Terriers are only bred Biewer to Biewer. The pups will either look like Biewers or Yorkies depending on how the genes are expressed. In Germany they often had Biewers and Yorkies born in the same litter, and they would name the breed based upon the dog's phenotype. |