| QuickSilver | 01-30-2009 03:00 PM | Quote:
Originally Posted by Nancy1999
(Post 2446159)
If your desire is truly to bread only for robustness, then you should probably take man out of the mix. Nature breeds for robustness. Put 100 dogs together let them decide with whom to mate, and let them settle the arguments, and find their food. In 100 years or so, the remaining dogs will probably be very robust, but I doubt if anybody would want them as a "pet." Well, maybe Michael Vick. There's nothing wrong with breeding for certain traits if you really know what your doing. Unfortunately very few do.
From what I understand, the parti trait that is seen in many animals is controlled by one gene that is recessive. Some people believe a second gene causes the spotting you see on Biewer. These views were obtained from Yorkietalk, and haven't been throughly researched. | Thanks for your response. I agree with your first paragraph -- what I mean is, by definition, breeding dogs shrinks the gene pool, so whether you are breeding for a flawless-looking yorkie or for some other physical trait, be that size or color, doesn't seem that different to me, except possibly in degree. I can see an objection to teacups because small yorkies have more trouble whelping, or because runts are less healthy in general. However, it doesn't appear to me that breeding, say, for an apple-shaped head is much different from what a standard breeder would do. Isn't the real difference whether or not a club has set the standard you're following?
Breeding in general seems like a grey area to me. No planned breeding at all, and eventually you end up with wolves again. Breeding for extreme physical traits will result in very unhealthy dogs. Pure breds, mutts, "designer" dogs, cross breeds, these seem like different shades on the spectrum.
I will add my own disclaimer that I haven't studied dog breeding, so I can't pretend to be an expert, but when has that stopped someone from having an opinion? ;)
Also, I would guess that most dog traits we see are expressed by recessive genes, because if dogs come from wolves, well, yorkies don't look a whole lot like wolves. |