OFA excellent vs good hips

Amstaffer

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#1
When there is a breeding of dogs how much more (if any) are dogs with excellent hips likely to have pups with sound hips than dogs with good rated hips?

How much do the hips of the grandparents matter?
 
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#2
A lot goes into a good hip!.Obviously,genetics and hip testing will help but good food and the right amount of exercise,will,also,make the difference!.
 
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#3
The grandpaents matter in the sense that while a dysplastic dog might produce a good-hipped dog, the good dog is still carrying dysplastic genes. Since HD is a polygenetic trait, we don't have any way of ruling out dogs that are carrying for HD except by clearing as many dogs in their pedigree- vertically and horizontally- as possible. So you have to take the whole pedigree into account.

And while things other than genetics do play a role in an individual dog's soundness, I don't think there is ANY reason to breed a dog who comes back dysplastic in most breeds. While it COULD be environmental, who'd want to take a chance on that- especially when there are so many dogs that *are* clear out there?

There's some good posts about this over at Germanshepherds.com on their breeding forum.


Cait
 
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RedyreRottweilers

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#4
AmStaffer, I have no preference as far as passing hip ratings. For me, passing is passing. What I AM interested in is how many siblings of the dog in question, and how many siblings of dogs on the 2rd and 3rd lines of the pedigree rated.

I want to see as high a percentage of normal animals as possible across the BREADTH of the pedigree. Looking backwards (for me) is not nearly enough. In my breed it is very unusual to find any dog that does not have 5 to 8+ generations of hip cleared dogs behind it. Hence my tendency to look sideways in the pedigree when I am doing the research, and one more reason why I require health testing done and published on ALL my puppies.
 
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#5
A normal or A fast normal still does NOT guarantee all pups in a litter will have no Hip Displasia. Of course the farther back hips are good the better as that one little gene can slip through from a generation of pedigreed hips of bad rating.

This is why good breeders give warranty on hips because we are not GOD to prevent this with good ratings, everytime I breed a male n female and have pups, I just pray all goes well. Nothing is forever but death n taxes.
 
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#6
I agree with Redyre, and OFA will tell you the grade of the resultant offspring can go up or down as much as two grades.
 
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#7
I agree that passing is passing, but I personally would not breed Fair x Fair if it could be avoided. If, say, I was breeding Dogos, which are nearly half dysplastic, I would settle for that kind of pairing. But in breeds where the hips are overall healthier, I wouldn't, because there should be better hips out there.
 

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