I disagree with human being an appropriate example. First off, no people are
selected for breeding the way dogs are. Of course humans have a genetic load, as do mutts, like any living creature and if not actively selected against, this load will continue with its only buffer being diversity. In the past with all animals, including humans, the hardships of nature culled from breeding many that are not culled today - natural selection or survival of the fittest. In creating breeds we have replaced natural selection but our criteria is not as harsh and at the same time we have disallowed diversity by closing gene pools. This type of breeding can in no way be compared to breeding that has gone on from the dawn of time.
Second, a statement comparing numbers of health issues (of which many are extremely rare) but which ignores
prevalence is grossly misquided. It is the prevalence of specific diseases in certain breeds that has made them scientist's best friend in their efforts to find the causative genes for diseases . . . we may benefit, but it is sad for the dogs.
The prevalence of Chiari Malformation (herniated tonsils) in humans is less than one in 1000 and we know it is much above that is Cavaliers.
MVD is also about 21 times more likely to occur in Cavaliers than in the typical dog.
These prevalence rates are scary!
It also should be kept in mind that segregeted and inbred small human populations suffer even from inbreeding depression and increased
prevalence of inherited diseases -Hapsburgs, Tudors, Romanoffs amongst others.
What do you back this statement with? I usually refrain from posting but could not let this go. Undomesticated animals go to GREAT lengths to avoid inbreeding. Practically all animals and plants have evolved structural, physiological and/or behavioral mechanisms which discourage pairings between close relatives.what is commonly known as inbreeding avoidance. This is practically universal in nature. It is, however, one of the first things lost under domestication, because it tends to interfere with the immediate objectives of individual human breeders which we can now see can be short sighted.
There are lots of studies and papers on this topic. Here are just some.
http://www.medicalnewstoday.com/articles/88288.php
http://www.biologynews.net/archives...eding_avoidance_in_wild_capuchin_monkeys.html
http://content.karger.com/ProdukteDB/produkte.asp?Doi=19063
While I understand the point that there will always be risks with breeding puppies and perfection is an impossibility, I believe most of us who love our pets want the risks to be mitigated as best as possible.
Surely asking those in clubs that proclaim themselves as guardians to these breeds to assure that they are guiding their breeding programs making the best use of current scientific knowledge in regards to breeding, and health testing so that they can make the best decisions, is not too much?
BTW - even some of us humans with a probable genetic load do undergo genetic testing before bringing children into this world.