Ugly feminine males...

[elf]

Originally Posted by Mikael

hmmmmmmmmm... Did you come to any conclusion about the size and the effect of HD from this info...

Sorry ta ask, but I´m stupid

Best regards / Mikael

Correct Mikael, as we can see on the graphs we can conclude "almost" nothing .

[elf]

>"almost"

My little conclusion, if you take the curve HD_CDE and make a linear regression on it (in green), you find there is a little correlation, here it is:

[Hanka]

Oh, but it is not corect. Not every high dog must be heavy too....

[elf]

Originally Posted by Hanka

Oh, but it is not corect. Not every high dog must be heavy too....

Correct, not high dog must be heavy... but, what the graph do suggest is there is anyway a correlation (tight) between the high and % of dysplasic. This can be explained by, there is a correlation (if you take enough dogs) -even if there are heavy, normal, light types- between height and weight ; and weight helps dysplasic genes to reveal (maybe also lever effect ?).

[GalomyOak]

Originally Posted by elf

Correct, not high dog must be heavy... but, what the graph do suggest is there is anyway a correlation (tight) between the high and % of dysplasic. This can be explained by, there is a correlation (if you take enough dogs) -even if there are heavy, normal, light types- between height and weight ; and weight helps dysplasic genes to reveal (maybe also lever effect ?).

This doesn't really apply to original topic, but...the discussion of size/build/HD made me think of it...

I took 2 of my dogs to have Penn-Hip tests last winter (male, 65/66 cm, 18 months and female, 60 cm, 15 months).

Results:

Male: .38/.39 - no HD evident at all
Female: .27/.37 - no HD at all

PennHip measures laxity or "looseness" of the hip, which is a big genetic component of HD

This fall, I took the same two dogs for OFA tests - male at 27 months, female 24

Results: Male - Mild HD, left hip (C), Female - Excellent (A1)

The results suggested 3 things to me (hopefully I will have more results as I test more dogs) -

1. It is possible HD shows at later ages (big change from 18-24 months for the male, a surprise - I learned OFA results after I bred my litter - although I knew it was a possibility from the HD present in earlier generations)
2. Size is a factor, since both dogs had similar laxity
3. HD can present with relatively tight hips (it is the same for the GSD) - close to or below .30 is considered very low risk, close to or above .70 is considered high risk - but it changes a little with each breed

[Mikael]

Originally Posted by elf

Correct Mikael, as we can see on the graphs we can conclude "almost" nothing .

Thank good I was not stupid

Best regards / Mikael