Pituitary Dwarfism test for CsW is available!

[michaelundinaeichhorn]

I am not Mijke but will answer.
If you declare a carrier as p(ositive for dwarf)/n(negative for dwarf), it means that in an egg or a sperm there is only one p or one n, in combining two carriers you get the possible pairings p/p, p/n and n/n. what means you can get negativ (no dwarf gene) dogs by pairing two carriers. The only problem is you might get some p/p out of this pairing.

Ina

[jefta]

so, all puppys after parents n/n + n/n get a certificate without testing?

[saschia]

Originally Posted by jefta

so, all puppys after parents n/n + n/n get a certificate without testing?

In theory, puppies after clear parents are also clear, but there is always very low, but not nonexistent, probability of spontaneous mutation in the gene. Bad thing is, this mutation would probably not be recognized by the test. But this is true for any genetic illness. And the probability is so low that it can be ignored for most purposes (unless dwarves start to be born after clear parents).

In my opinion, to get a certificate, the pups should either be tested for the gene itself, or for the paternity of the proclaimed parents (which might be more economic if the parents have certificates for several genetic disorders - but I am not sure if it would be accepted).

[Rona]

Originally Posted by michaelundinaeichhorn

I am not Mijke but will answer.
If you declare a carrier as p(ositive for dwarf)/n(negative for dwarf), it means that in an egg or a sperm there is only one p or one n, in combining two carriers you get the possible pairings p/p, p/n and n/n. what means you can get negativ (no dwarf gene) dogs by pairing two carriers. The only problem is you might get some p/p out of this pairing.

Ina

This means each dog should be checked individually wheather it is nn, np or pp. No shortcuts , as usually in life
Thanks for the explanation, Ina.

[jefta]

I think its good time for discusion about N/N puppys (after parents,no tested) before? first litter is born.

My arguments:

pro-
*economy-genetic test is expensive (more than 100 E), so what is a sense to test dogs which are for 99,9% free?
*motivation for breeders to test own dogs-extra incentive to buy the puppys or use stud dogs.

contra-
*discrimination breeders/stud dog owners which can't get cetificat because of using carrier (negative occurrence in so small populacion)

[saschia]

Originally Posted by jefta

pro-
*economy-genetic test is expensive (more than 100 E), so what is a sense to test dogs which are for 99,9% free?

This is true - and there is very low probability that a new mutation would be safely recognized by the existing test.
But you would still need to test them at least for the parentage. That would actually be advantageous in my opinion, as paternity and maternity certificates would ensure no cheating in CW/SW crossing for example...

But back to the original topic - in todays situation, unfortunately, the most responsible breeders, that means the ones who invest in all the health tests available, and do not hide the results, are the ones that would actually be disadvantaged, unless the buyers are very well educated in these problem and actively select only puppies from responsible owners and are prepared to pay more for that certificates. Which is unfortunately not true yet. Most of buyers are newcomers to the breed and most of them only want a dog for friendship and fun and prefer to pay less and to buy locally. Or they want dogs for shows and buy only after champions, even if those champions got their titles from referees who have never seen a wolfdog in their lives.