Czech GSD's with bad hips - Page 38

Blitzen are you actually saying that OFA does not know about these problems? They are professionals. I am absolutely confident that they do not need any suggestions in order to get Epiphany. 

Keith Grossman I say it one more time. ( 4th?) OFA statistic are based on x rays of people who actually send the x rays to them for evaluation.  How many people you know who will send bad hips to OFA for reading? 
As far as the statistics I can provide the sources but these are in  the book from Fred Lanting  Canine dysplasia and other orthopedic disorders.  You can look it up there. 
But I can give you skinny. The statistic on HD depend on:
1.number of dogs included.
2. was the sample random and blind.
3. what is considered dysplastic. Anything which is not perfect or anything which is above border line.
4. what is evaluated on the hips and what are the standards. 

Hans, I don't know what OFA knows or what they don't know. 

I have a question, it might look a bit off, but it is a serious one, if anyone cares to answer it for me, do HD and ED occur in other species of animals that live in the nature?, I mean animals living on their own away from human interference.
Since I first heard of HD and ED in dog breeds I was watching all those cats living freely in the streets and near homes, and I didn't notice anyone of them having a problem in either front or hind legs !!!. I also never saw it in sheep.

Question: Where did Fred Lanting get HIS data from?  I would expect him to provide the citation for that statistic if he's publishing it--it should be there somewhere in the book, Hans.

Yes Hexe there are pages of citations. I am trying for people to get the book and look it up for them selves. It took Fred years to write this book. I do not want to just give away  the info which took Fred years to research.
However here is a morsel. The study which indicates 67% of HD
McDonald M. Osteochondritis dissecants of the femoral head: a case report. J SmallAnim Pract 1988: 29:49-53
 
 53% HD out of 696 GSdogs:
  The Switzerland study from Data publisher by Flucker, Schweitzer Hundemagazine 1/98 and the SV Zeitung. 

There are more studies ,  the datas are out there.  Look them up. 
Hans 

Ibrahim that is good question. HD had been found in variations of wild animals in domestic species; 
including horses, domestic beef cattle, deer, rabbit, pigs and cats as well as dingoes and wolves  kept in captivity.  In wilderness the nature takes care of the genes being pushed to the bottom of the genetic "card deck",  as I have described before.  
People have HD too. 
Hans

Ibrahim,  1 you cannot always see, from movement, whether HD or ED is
present in a canid, wild or tame.  (Dunno about the cat family).
2 if the dog or coyote or wolf is clinically affected then they will be either
lame or just walk/move 'funny' depending usually on the degree of arthritis
affecting the joint, rather than the structure of the joint itself.
3  Can't remember seeing any 'proof' in wild animals either way, but a wild
canid which was severely clinically affected would not survive long (so would
probably reproduce less) as it's hunting for food would be slowed or stopped.

Thanks Hundmutter

Some interresting info for those who wish to read rather than argue!

http://www.gocco.co.za/hd_gradings.htm

I think Fred prefers PennHIP.. Is anyone here using PennHIP in lieu of or in additon to OFA?  Hans?