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by alisoni on 24 September 2013 - 11:09
Good morning,
I am researching breeders in preparation to purchase as puppy. This isn't my first GSD, but it is the first time I have admittedly done my "homework" in regards to breeders.
Looking at hip ratings I wonder what you all find to be acceptable ratings in a lineage. If a puppy has some grandparents with A2 ratings, or even a great grandparent with A3, but parents and some grandparents have A1, is that a "safe bet?" Or do you look for ALL A1?
In regards to the DM testing, I have read that these tests are only about 50% accurate. What can you tell me about that?
And in terms of pedigrees, is it a bad sign if a dog in puppy's lineage is NOT listed on pedigree search here?
Thanks for feedback!
I am researching breeders in preparation to purchase as puppy. This isn't my first GSD, but it is the first time I have admittedly done my "homework" in regards to breeders.
Looking at hip ratings I wonder what you all find to be acceptable ratings in a lineage. If a puppy has some grandparents with A2 ratings, or even a great grandparent with A3, but parents and some grandparents have A1, is that a "safe bet?" Or do you look for ALL A1?
In regards to the DM testing, I have read that these tests are only about 50% accurate. What can you tell me about that?
And in terms of pedigrees, is it a bad sign if a dog in puppy's lineage is NOT listed on pedigree search here?
Thanks for feedback!
by Jenni78 on 24 September 2013 - 12:09
Not being on a search here means no one bothered to upload it. That's all.
DM test is a bit confusing. There will probably be eternal arguments about what the results mean. There have been "affected" dogs who never got it and carriers or normals who did, and there's rumor that the popular test isn't even valid for our breed, though it's very accurate for other breeds, but our breed gets a different form, or something like that. I find it fascinating that we in the US are all about this test and the Germans are just now hearing about it.
Acceptable hips are acceptable hips. Don't get too hung up on that. It's more important to look at the whole family's hips than look "for" A1's only, etc. ZW scores give an excellent picture of what kind of hips a dog is likely to throw, if you're looking at imported dogs. I know I saved that link, somewhere. For example, I know Capri's ZW is a 70. I know Ron vom Ludwigseck's was a 64. Just using these as examples because they're the parents of the dog I most recently xrayed. Her hips were beautiful, at age 4. I had a pretty good indication from those numbers that the probablility of getting good hips was high, given how much lower than average the parents' ZW scores were. Those are both very low scores. 100 means that dog produces an average amount of dysplastic hips for the breed, so over 100 means more than average, and under 100 means less than average. How much less or more, I'm sure you can figure out. It's not a perfect science, particularly in dogs who don't have a lot of offspring titled and scored in Germany, but it definitely shows the background further back than you're likely to find in OFA.
DM test is a bit confusing. There will probably be eternal arguments about what the results mean. There have been "affected" dogs who never got it and carriers or normals who did, and there's rumor that the popular test isn't even valid for our breed, though it's very accurate for other breeds, but our breed gets a different form, or something like that. I find it fascinating that we in the US are all about this test and the Germans are just now hearing about it.
Acceptable hips are acceptable hips. Don't get too hung up on that. It's more important to look at the whole family's hips than look "for" A1's only, etc. ZW scores give an excellent picture of what kind of hips a dog is likely to throw, if you're looking at imported dogs. I know I saved that link, somewhere. For example, I know Capri's ZW is a 70. I know Ron vom Ludwigseck's was a 64. Just using these as examples because they're the parents of the dog I most recently xrayed. Her hips were beautiful, at age 4. I had a pretty good indication from those numbers that the probablility of getting good hips was high, given how much lower than average the parents' ZW scores were. Those are both very low scores. 100 means that dog produces an average amount of dysplastic hips for the breed, so over 100 means more than average, and under 100 means less than average. How much less or more, I'm sure you can figure out. It's not a perfect science, particularly in dogs who don't have a lot of offspring titled and scored in Germany, but it definitely shows the background further back than you're likely to find in OFA.
by Dawulf on 24 September 2013 - 15:09
by alisoni on 24 September 2013 - 15:09
Thank you both!
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