Close but no cigar! The breeds we have today are the result of careful, planned breeding in order to create a dog for a certain job, look, etc. Breeds are not the result of random breeding, they are the result of breeding for specific traits, and careful planning to fix those traits genetically.
Each breed, as opposed to mix or mutt, if mated to one of it's own breed, will have pups that fit the breed type, IE two GSD's that meet the breed standard will result in pups that are unmistakably GSDs. However, if you mate a GSD and a Beagle, all the puppies will be different proportions of each, and if they mate, people will be scratching their heads trying to figure out what's in them... How will you know which will likely be good at ground scent and game tracking, and which will be good for LEO work and chem/LHS detection? Chances are, none of the pups will excel at either. Try taking a LabXGSD and getting a Mondioring title, without having your first 100 attempts resulting in your dog blowing his anal glands in fear and running off the field.
Too many people have forgotten that dogs once not only mooched off of us, but actually contributed their part. Dogs had jobs once upon a time. This is why they were bred for type, why we have dogs like the GSD, Doberman, American Bulldog, Greyhound, Lab, Chessie, Aussie, Border Collie, Chihuahua, JRT... They were bred the way they were so they would excel at specific jobs.
Now we breed purely for aesthetics. Schnoodles? Labradoodles? Puggles? WTF!!! If you want a hypoallergenic dog just get a damned Poodle, they already come in a variety of sizes!! Heck the 'designer' breeds aren't even breeds, because they have no genetic type. What can they do, other than not make you sneeze? Can they hunt? Man track? Herd? Guard? Handler protection? Pull sleds? And can they do so better than established breeds?
Designer 'breeds' only exist to fill wallets. Notice they all have cutesie names? Other than that, they have no purpose. Soon enough, they will fall prey to the same problems as every other breed, once they have been inbred enough or fade from popularity. Then I guess it's one to the next...
As far as limited gene pools being reason to purposefully breed mutts, that's bunk. All that needs to be done is to open lines, diversify by bringing in blood from other parts of the world. You can accomplish the same thing by making the effort to bring a GSD in from Yugoslavia to add to your GSD breeding program as you would by breeding in a Golden Retreiver. The issue of limited genetic individuals only exists in the U.S. , with exception of a very few toy breeds.
Bleh my fingers must be tired I'm typo-ing a lot!
you are a retard. First, i never said the "breeds" we have today were the result of 'random' breeding, just mixing. Second, Poodles, goldens and labs were all bred to be waterfowl hunting dogs. I have a goldendoodle that is the best gundog i have ever owned AND doesn't shed--- seems like a pretty good reason to breed them if you ask me.