Quote:
Originally Posted by GreenwoodBiewer  Deb,
You are correct, not all German breeders breed back to yorkies, you are also correct that breeding to a parti yorkie or a standard colored yorkie is diluting the biewer gene.. that is the whole idea.. to bring in some health to the genes of the Biewers as (in my opinion) they were to closely inbred without the proper steps taken to remove the unwanted "issues" from the breed.. the Parti's were also very inbred, but it was done by people that knew what they were doing and they removed the dogs from the breeding populations that had genetic problems and did not just keep breeding them just to get the color. Where Mr. Biewer focused on setting a specific LOOK, I believe the Parti's concentrated more on health first.. now they are working on the outer appearance.
In the world of dogs.. 26 years is nothing.. does the AKC accept a dog as a new breed just because it is bred "true" for that amount of time??? Would they consider the Biewer a Breed of it's own?? I have yet to hear anyone show me HOW just time alone and just breeding color back to color and setting type can make a new breed. I understand how you would want that to be the case, but I just don't see that it is. If you bred Parti's just with Parti's long enough.. are you saying THEY would also be a seperate breed???
Diana  |
Well so say experts with far more knowledge and education regarding genetics than I. You wanna read articles by Carmen Battalia or Jerold Bell to name two.
I do know that inbreeding sets type. Simply because it causes some genes to become homozygous...meaning the same...unlike heterozygous genes which carry differences. So dogs with homozygous genes reproduce themselves because the genes have been "fixed".
There are loads of articles on line regarding inbreeding, genes...some are much easier to understand that others...some I've read several times to understand. lol.
The coefficient of inbreeding in a group of 1000 biewers hovers at around
18%. This is the same COE for standard poodles...some are as high as 25%.
I have seen great strides in structure of the biewers being produced today than several years ago.
I have always been puzzled by the premise of breeding back to a yorkie for health reasons. A)the genetic issues are exactly the same in the two breeds and B)if there are health issues...what benefit do you get when you've bred back to the same dog who health was in question.
As far as the gene pool being considered too small. I own two dogs who do not have any related ancestors until their 5th gen (1 dog)....so there are unrelated dogs out there...
Thanks for saying I'm correct lots of times...
. lol.