I am well aware of the guidelines Anne and also of the research in Sweden and the guidelines laid down by the Swedish KC which incidentally from what I understand is causing quite a few problems. I do and will continue to test but I would never assume that because I do that somewhere along the line an early onset MVD will not rear it's ugly head - as I said previously I have been lucky so far that what I have encountered in my breeding programme has been late onset (touch wood!) It will be years if ever before a genetic test is found - maybe the collagen research will prove beneficial.
Annette ----- Original Message ----- From: "Cavatibs" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, December 06, 2001 1:43 AM Subject: Re: [CKCS-L] Breeding for hearts > Annette Jones wrote: > > > > There are NO lines clear of MVD and no genetic test to enable us to screen > > our stock - there fore there is no way of knowing which puppy (if any) in a > > litter will develop early or late onset unfortunately and who will never > > develop it but live and die of some other ailment like cancer or kidney > > failure. You can health test until the cows come home and use dogs with a > > good history behind them but it will not prevent somewhere along the line a > > puppy in later life developing MVD. > > > > There is certainly no way to know which puppy in a litter will develop early > MVD. But there IS a way (as has been researched and documented by the > cardiologists and geneticist in Sweden) of reducing the frequency of MVD in > Cavaliers and increasing the odds of producing a lower percentage of dogs with > MVD -- and that is by breeding to and from older dogs with cardiologist's > clear heart certificates. The research shows that it is possible to also > reduce the frequency of MVD by breeding to younger dogs whose parents are clear > of MVD at an older age. Of course, this is not 100% foolproof but it doesn't > take a rocket scientist to understand that if you breed generations of older, > heart clear dogs then you will get a higher percentage of heart clear > offspring. This is surely what we all strive for. So .... whilst it is true > that no amount of testing is a guarantee that your dogs will be clear of MVD, > it is certainly a step towards reducing the possibility of your offspring > coming up with early onset MVD. > > If we can reduce the gene pool so much by selecting for conformation and > beauty, then surely we can reduce the gene pool for clear hearts. > > Anne > > > > > Annette Jones wrote: > > > I do explain it not only to anyone buying a puppy off me but to the many > > people that ring me everyday enquiring where they can get a puppy > > There are NO lines clear of MVD and no genetic test to enable us to screen > > our stock - there fore there is no way of knowing which puppy (if any) in a > > litter will develop early or late onset unfortunately and who will never > > develop it but live and die of some other ailment like cancer or kidney > > failure. You can health test until the cows come home and use dogs with a > > good history behind them but it will not prevent somewhere along the line a > > puppy in later life developing MVD. > > I am all for testing but one has to keep these things in perspective. I > > think we had this discussion some weeks ago - are we going to breed only for > > healthy hearts and lose all the other things which make Cavaliers the breed > > they are? I know that I would prefer to have a typical Cavalier with a good > > temperament that lived to be ten than an untypical generic dog with maybe a > > bad temperament that lived to be fourteen. > > Perhaps I have been fortunate as yet I have not had one of my dogs die of > > MVD BUT I do know of dogs that I have bred who have developed it. Chance? > > Good Luck? I don't know but it is interesting that those that I have seem > > with MVD that I bred were "pampered pooches" overweight, lacking in > > exercise - two of the things that will exacerbate the condition. > > I have two oldies here with murmurs but they are asymptomatic - will a > > normal life style with the younger ones but I watch their weight carefully > > and do not restrict their exercise. > > Just my opinion for what it is worth > > > > Annette Jones > > ----- Original Message ----- > > From: "Winnie Clark" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Wednesday, December 05, 2001 7:28 PM > > Subject: [CKCS-L] Breeding for hearts > > > > > <<<<Hearts are only one small part of the equation when breeding - to be > > > <<<<considered yes but not more so than everything else > > > > > > And perhaps you'd like to explain that to pet owners who watch > > > their dogs *suffer* and die from early onset MVD. > > > > > > > > > Winnie > > > Columbus, NC > > > [EMAIL PROTECTED] > > > > > > Dogs are made of love and fur. > > > > > > ========================================================= > > > "Magic Commands": > > > to stop receiving mail for awhile, click here and send the email: > > > mailto:[EMAIL PROTECTED]?body=SET%20CKCS-L%20NOMAIL > > > to start it up gain click here: > > > mailto:[EMAIL PROTECTED]?body=SET%20CKCS-L%20MAIL > > > > > > E-mail [EMAIL PROTECTED] for assistance. > > > Search the Archives... http://apple.ease.lsoft.com/archives/ckcs-l.html > > > > > > All e-mail sent through CKCS-L is Copyright 1999 by its original author. > > > > > > > ========================================================= > > "Magic Commands": > > to stop receiving mail for awhile, click here and send the email: > > mailto:[EMAIL PROTECTED]?body=SET%20CKCS-L%20NOMAIL > > to start it up gain click here: > > mailto:[EMAIL PROTECTED]?body=SET%20CKCS-L%20MAIL > > > > E-mail [EMAIL PROTECTED] for assistance. > > Search the Archives... http://apple.ease.lsoft.com/archives/ckcs-l.html > > > > All e-mail sent through CKCS-L is Copyright 1999 by its original author. > > ========================================================= > "Magic Commands": > to stop receiving mail for awhile, click here and send the email: > mailto:[EMAIL PROTECTED]?body=SET%20CKCS-L%20NOMAIL > to start it up gain click here: > mailto:[EMAIL PROTECTED]?body=SET%20CKCS-L%20MAIL > > E-mail [EMAIL PROTECTED] for assistance. > Search the Archives... http://apple.ease.lsoft.com/archives/ckcs-l.html > > All e-mail sent through CKCS-L is Copyright 1999 by its original author. ========================================================= "Magic Commands": to stop receiving mail for awhile, click here and send the email: mailto:[EMAIL PROTECTED]?body=SET%20CKCS-L%20NOMAIL to start it up gain click here: mailto:[EMAIL PROTECTED]?body=SET%20CKCS-L%20MAIL E-mail [EMAIL PROTECTED] for assistance. 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