HD, ED

[Pavel]

Hi,
Margo knows very good which thema can provoke me to long discussion )

HD is hereditary. But as you wrote we don't know how strong (scientists talk
about 25-55%) and which genes support it.

I stay on my position. And you are in this sentence in gap. Because you say, that
HD is hereditary, but in next one you state, that nobody know which genes do it.
If we dont have which and how many genes support HD, then we cant say if is
hereditary or not. And as I wrote, the statistics are absolutelly not conclusive.

For example: if information is missing and you will choose a HD free stud dog
you will never know if the dog had "luck" (he is the only one in whole litter
which is HD free and the rest of the sibilings have HD) or maybe it's really
relatively healthy dog (his sibilings, parents and/or offsprings are also HD
free). Maybe that's exactly the reason why it's so hard to fight with
displasia...

If is really HD hereditary (I say "IF"), then all CsW have a gens for it, because
all comming from same lines (we have more lines, but all just were in history
minimaly one time crossing between). And with selecting on HD we dont reach any
good result yet. See the GSD. They watching HD just over 30 years (and more) and
make a selection. But the situation is not better. E.g. in Czech is just so
tragically situation by GSD, that from last year is possibly to using for breed
dogs with HD stage "D" !!! Its the result of long time selection. Its the reason,
why am very sceptical to HD. Before nobody hear about HD and the dogs (and wolves
as well ) ) survived thousand years.

Have a nice day

Pavel