Fast Normal a2 - Page 1

Can some one please tell me what this hip rating would be compared to an OFA rating?

Thanks

This hip raiting would be compared to OFA as "FAIR" or "NORMAL"

Hope this help! 

 Check out this page.http://www.offa.org/hipgrade.html

Here's my interpretation:

a1 normal--maybe excellent, probably good, slight possibly of fair

a2 fast normal--probably good, possibly fair

a3 nz--probably fair, possibly mild, borderline

I agree with  LMH - exactly.  I disagree completely that a-normal is the same as OFA Excellent.  A-normal is the majority of hip ratings in Germany, and it will include all passing levels, most of which are "Good".  fast-normal on the other hand indicates "something" they see that is not quite "normal" - so the OFA equivalent would be more like Fair, maybe Good, possibly borderline but probably Fair or Good.  NZ is more likely borderline, possibly mild or Fair.

molly

HIP grades- Clasifications in different countries.

http://www.lady-ridgeback.sk/tab-dbk.htm

Clay, I will expand the topic of your question a bit. The debate as to what is the O.F.A. equivilent to "a" fast Normal can go on forever, and there is but one (1) answer. Have both the O.F.A. and the S.V. examine the radiographs and give their interpretations, and then know what they are. Can "a" fast Normal score as high as O.F.A. "Good"? Of course it can if the joint is of good quality. Can "a" fast Normal score as low as O.F.A. "Fair"? Yes again, if it has lower structural quality.

The "a" fast Normal is thought to be as high as the lower area of O.F.A. "Good" or as low as the midrange of O.F.A. "Fair." The "a" Normal rating definitely covers the range of O.F.A. "Excellent" through O.F.A. "Good." Bear in mind that fewer than 3% of all GSD's ever receive a hip rating of O.F.A. "Excellent" as unfortunately our favourite dog does not have genetically superior hips when compared to some other dog breeds.

Perhaps one should look more at the GSD's rate of failing hip dysplasie as examined by both groups. For the O.F.A., the failure rate is approximately 19%, and for the S.V. the failure rate is approximately 6%. Now, this is only true for the radiographs that make it to either organizations and are not tossed in the trash thus causing the affected dog to remain an "unknown."

So, this begs another question: is "a" fast Normal a suitable hip quality for breeding? I think so, especially if the ZW is low and the ancestors are divided between "a" Normal and "a" fast Normal, with most being "a" Normal.

Again, the only solution to the debate is to have the radiographs taken properly and examined and scored by both agencies. As far as I can see, there is no exact relationship between the scoring of the systems used by the O.F.A. and the S.V... And there can never be a true comparison, as other tan using the Norberg Angle method to determine the proper position of the joint components, the determination of the hip's quality is still subjective to a large degree as it is determined by well-trained human eyes.

Bob-O

Eichenluft's post is the most correct.  SV "A normal" for hips at one year can later be x-rayed and interpreted by the OFA at two years or older in a wide range of ratings all the way from excellent to dysplastic.  A good portion are actually interpreted by the OFA as mild dysplasia.  Most fast normals will turn out to be read dysplastic by the OFA at two years or older.  Nachs usually are interpreted as dysplastic.  I would never use any GSD stud with an SV rating of "fast" or "nach", and would only use an "a normal" after seeing the xrays myself at two years old or older, concentrating on the norberg angle to be 105 degrees or greater.  It takes about five generations of breeding GSDs with OFA good or better hips and normal elbows to reduce HD and ED enough to consider it essentially eradicated.  The caveat is to not use any of these animals along the way for further breeding if they produce HD or ED.  The problem with the SV hip system is that the Xrays are taken too early to be very diagnostic. I would never breed to any GSD with anything but completely clean elbows. I have seen a number of "a normals" xrayed at two for OFA and a fair number wouln't even go "OFA fair".  One of the most experienced OFA vets in the country (located in Wisconsin) has had many imports with "a normal" hips xrayed at his clinic and fully supports what I state here. He is the source of my info.