Think about it. I mean REALLY, really think about it.
I can easily trace dogs back in my pedigree for almost 50 years. And if I put some effort in I could go back another 50. NONE of them had Hip Dysplasia. None. Zero. Nada. Generally speaking, if the past 50 or more generations of working line German Shepherds have been cleared of Dysplasia and there is still Dysplasia, there has to be something we are missing. Maybe it's lack of vitamin C. Maybe it's the calcium phosphorus ratio. There is something we are missing! I will continue to look under every rock and cranny to figure it out. I hope you will too.