"Robin Nuttall" wrote in message
news:uNKOf.7352$oL.7210@attbi_s71...
wolfpuppy wrote:

Not sure what part of my post you didn't understand. Hip dysphasia is a
result of inbreeding, that is, breeding dogs that are too closely
related.

No. It's not. For one thing, it's spelled dysplasia. Doing a search on
that or even a cursory look at the OFA website (www.offa.org) would give
you reams of information about the causes of hip dysplasia. Inbreeding is
NOT a cause of dysplasia.

Now hip dysplasia is genetic. That is true. And it's also a multi-genetic
inherited disease in which the mode of inheritence is not clearly
understood. But it is found in inbred dogs, outcrossed dogs, mixed breed
dogs, purebred dogs, wolves, and even cats. And there are many "inbred"
lines with absolutely no hip dysplasia.

All inbreeding does is make an organism more homozygous. By inbreeding
properly, you can actually eliminate certain genetic diseases from lines,
which is why the Portuguese Water Dog has made huge strides in eliminating
HD even though it has a very small gene pool.


If you want to get into more detail than that, you will have to ask a
geneticist. If you are trying to pin me down by making me say that all
inbred pups will develop this condition, there is no way I could do that.
But if you want to avoid this condition, then I would say that by not
breeding dogs too closely related would be the way to go. To be
absolutely sure, you would want to have the parents hips x-rayed, since
x-rays in too young a dog wouldn't show anything.

You know, you really ought to think a bit before you spout off about stuff
you clearly have no understanding of. Avoiding "inbred" dogs will not keep
you from getting a dog with HD. HD occurs in all dogs, feral, mix, pure,
outcross, inbred. All dog breeds are inbred, that's what makes them a
breed. Yet clearly there is a difference between the incidence of hip
dysplasia in Bulldogs (ranked #1 with 73.6% dysplastic) and in Italian
Greyhounds (ranked #146 with NO HD found and 68.3% Excellent). Oh and
German Shepherds? 39 with 19% dysplastic.

You people are so ****in' anal about the spelling. Alright, I mispelled it.
I stand by my post, though.