r u kidding me? - Page 6

mag, I really don't wish to sound harsh but the 75/25 is absurd for hd/ed.

do your own study. breed a couple of severly dysplastic dogs and a couple of dogs with several generations of good hip scores, raise the pups exactly the same environment and report back with your findings.

 

"Randi I. Krontveit's doctoral research has studied the incidence of HD in four breeds of dog in Norway and examined factors in the environment where the dogs grew up that can have an affect on the number of cases. HD is a genetic disease which also occurs in several other species. Dogs are not born with HD, but genetically disposed puppies can develop varying degrees of HD. The degree of HD has an affect on when the dogs show symptoms and on how long they live."


Note 4 breeds of dogs were studied. OFA research has already learned that not all breeds inherit HD in the same manner. For example each hip develops independently in the GSD, while other breed's hip development is the same in both hips. Ergo the notion that unilateral HD in this breed is never genetic, instead it's always the result of trauma, does not wash.

This article seems to support most of the OFA findings other than - dogs are not born with HD; instead he uses the term "genetically predisposed".
 

"This article seems to support most of the OFA findings other than - dogs are not born with HD; instead he uses the term 'genetically predisposed'."

I also consider that statement misleading.  Just because a specific dog might not be displaying symptoms, doesn't mean that an abnormally formed hip socket is not HD.
 

"dogs are not born with HD"

neither are they born with erect ears, decended testicles or a mouth full of adult teeth. the genes they are born with determine these things.

Given the researcher stated in his report that HD is not present at birth, but is genetic, I wasn't quite sure what to think about that myself.

If it were possible, I'm still not sure that I would want to do much to prevent a dog's expressing HD (like restricting exercise). I think I'd rather identify the dogs that are genetically "predisposed" and remove them from my breeding program. I would advise buyers to not allow puppies to do a lot of jumping from elevated places or playing with frisbees or other toys where the dog jumps up to catch it and lands squarley on his rear feet.

 

have to agree with that Blitzen, if people are really breeding GSD so fragile that puppies can't be allowed to be puppies, they have taken a wrong turn some where.

Both sire and dam are certified by the SV.  Both are titled.  Dam was rated KKL1/

people give way too much credit to genes.  Epigenetics has has much to do with the genetic expression as the genes themselves.  and genes can be changed by the environment.  From very dramatic stressors like ionizing radiation exposure, to everyday mundane stuff like food and exercise.  Dysplasia is nothing more than abnormal development.  If a growing joint is injured it can certainly result in dysplasia same as genes coding for an incomplete joint can be called dysplasia.

But we still don't know if HD is the result of the expression of genes or the absence of genes. A vet radiologist should be able to tell the difference between a joint damaged by trauma and genetic HD.

some things will never change

the stud dog owner: it was the females fault
the female owner: it was the stud's fault
the breeder: it was not the fault of my dogs, must be your fault

for everyone else: must be ion radiation, because genes play no part in breeding