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Originally Posted by livingdustmops  Have you done any health study on what happens as these dogs become whiter and whiter? It is also a sign of to much inbreeding and why they stopped trying for white yorkies after the turn of the century. You might want to pickup Genetics of the dog by Malcom B. Willis. |
If you study the yorkie breeding practices of show breeders you will see that they have done extensive inbreeding in the traditional colors. Inbreeding was done to reduce the size of the offspring. Anytime you inbreed you are doubling the recessive genes. If one dog carries the the gene for gold and you breed it back to it's own offspring you might produce gold offspring. If you do the same with a dog carrying the gene for white you might produce white pups.
On the negative side if you have a dog carrying a gene for a defect and you inbreed you produce the defect. This is true for all colors of Yorkies.