PEDIGREE's of WELL know GSD's that carry the blue and liver gene - Page 8

I thought that it was common knowledge that Canto passed on haemophilia?

VKFGSD, I have the 1991 edition of Malcolm Willis' book and on page 83, he writes:

>>>....Canto was undoubtedly a haemophiliac and all his daughters were carriers. However he was a dominant sire. Despite only....<<< 

or even more clearly, on page 224:

>>>... In the SV Zeitung of July 1980 (SV 1980) 4 male haemophiliacs were reported.... All traced back in female line to Canto vd Wienerau, a popular stud who had died young in circumstances which suggested quite clearly that he was a haemophiliac. Although he was never tested it is certain that either he was born as type hO or that there was a mutation in him to make him pass on Haemophilia A through a defective X chromosome. His father is certainly not implicated but the status of his mother is unclear......>>>

Willis goes on in his article about the confirmation of the Canto involvement which came from a French scientist (Poirson in 1980) and other reports from the Netherlands, Norway, Denmark, Australia and Britain. All haemophilia cases ties into Canto in the right genetic way (female line). He is naming the Bedwins F-litter which had an impact in Australia as well. So, the above short list and information is just a regurgitation of the chapter I am quoting on pages 224ffff.

But before anybody panics now: Canto's most important progeny was Flora vom Koenigsbruch, because she carried the Canto line over with her sons Reza vom Haus Beck and Nick vd Wienerau. Willis explicitly writes that both, Nick and Reza escaped haemophilia (page 75), so it was not carried on. I have personally never seen a haemophiliac in all these years of breeding and have also talked extensively to a lot of knowledgable people in Germany about that subject when I first started out. I truly think that the SV and its top breeders took care of the problem their way, like they always do: Phase problems out by communication among themselves, and yes, unfortunately it is true: Certain problem dogs are sold overseas which takes care of some things. We can see that right now by looking at all these oversized animals offered, but that is a different story!

Chris

P.S. Everybody who wants to breed GSDs should own Malcolm Willis' book. That book is a must in the library.

Chris, Thank you for copying that Willis text in for folks. In my last move my Willis book got boxed up "temporarily"  so didn't  have access to it.  I agree the Wllis books are a  necessity.  I owned both at one point in time but a "friend" walked with mye arly edition so I have to find the dinero to replace that.  I wish that Willis would write an updated version that talks about current dogs and lines and the bifurcation within the breed.  Videx - any hope of that do you know or is he mostly into the Berners these days?

++I'd really like to hear what those who support the nonsense on that site have to say to Debi++

You will hear nothing of substance that supports factual information...just posting of sites that report false information.

Blues and livers are not a threat to the bread. As for Hemophilia, factor, 89, 9 vWd, etc. anyone concerned can do yearly bloodwork of all their animals. They can even offer to pay for the tests on animals they consider to breed to...But presentling false and unfounded information does nothing for the breed IMO1

Debi at the www.sherman-ranch.com

Debi, I believe OFA will list results of some or the tests you have mentioned. Maybe some of the dogs in question are listed there? I don't quite get the concern about dogs that carry the liver or blue factor. So what?

FYI a good bit of the information on the dilute carriers at Sahiela2 site can be found right in The German Shepherd Dog, A Genetic History by Malcolm Willis. 

Anybody consider that the reason the dilute database lacks DDR information is because its almost impossible to obtain DDR studbooks? 

It is very easy to cross reference Canto vd Wienerau's hemophilia.  Willis discusses it in his book and a good bit of his data came from an issue of the SV Zeitung in which the info was published about Canto's hemophilia as well as data on a number of his hemophiliac descendants. 

As with humans, hemophilia in dogs is on the X chromosome and is therefore seen only in males (unless someone bred a hemophiliac male to a carrier female, in which case a hemophiliac female might be  produced...but there's no sane reason for anybody to even think of doing sucyh a thing.  Hemophilia also varies in severity and not all hemophiliacs die young.  Ux vd Haller Farm was a hemophiliac who lived to be 9 1/2 years old. 

The tragic aspect of the situation is that as soon as the SV realized Canto Wienerau was a hemophiliac, they could have instituted testing of all descendants of Canto daughters and they could have allowed only normal males and non-carrier females to have been used for breeding.  As it is, hemophilia A became widespread and can travel hidden down through an infinite number of generations of females.

The Panda gene is a dominant spontaneous mutation, unrelated to the gene responsible for white chest blazes, toes, and tail tips.. Data that substantiates the facts about this gene can be found here.

http://www.pandashepherds.com/genetic_panda_info