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by mfh27 on 22 March 2012 - 01:03
The data for the GSD over the years includes dogs with generations of hip certification and those who are the first dog in 3+ generations to get a hip certification. I wonder what the ratio is.
An increase in number of poor breeding practice (of not x-raying hips over many generations) can easily out number those who are sellecting for good hip. It can certainly increase the shear amount of dogs with failing hips and mar improvements made by those who do ensure their breeding stock have good hips.
A better measure of OFA's usefulness in decreasing hip dysplasia would be to include in a statistic only dogs with a many generations of hip certifications.
An increase in number of poor breeding practice (of not x-raying hips over many generations) can easily out number those who are sellecting for good hip. It can certainly increase the shear amount of dogs with failing hips and mar improvements made by those who do ensure their breeding stock have good hips.
A better measure of OFA's usefulness in decreasing hip dysplasia would be to include in a statistic only dogs with a many generations of hip certifications.
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