@ComicDom1:
Having a narrow gene pool is not the only thing that can make problems with breeding. What can go more wrong, is problems of mismatched morphism, and randomly assorted skill sets. A bulldog crossed with a Malamute could be a disaster in the making. Bulldogs have short flat faces, Malamutes have lots of hair and long legs. If you breed these two, you will have a dog that can run and overheat in a heartbeat, because the air exchange through the muzzle (which is one of the cooling mechanisms for dogs) is insufficient for a long legged hairy dog. Of course this pairing sounds ridiculous to us, but what if the person breeding it was trying to get a more sturdy Bulldog, or a shorter Malamute? The point here is when you cross two breeds, you don't know what you are going to get. Randomly assorted skill sets apply too, if you cross a beagle with a whippet, you might get a dog who will follow it's nose with the speed of greased lightning, with no clue how to get home.
When you breed two dogs of the same breed, generations have shown what the dog will look like, and to some extent act like. Consistency of form and function is the whole point for responsible breeders. There is none of that for those breeding 'designer dogs.'
Miranda
No.. breeding a Bulldog to a Malamute doesn't sound like a good plan But breeding an "Excellent" pedigree Bulldog doesn't sound like a great plan either… Their air exchange is already insufficient... And consistency of form and function means that you are loosing genetic diversity, which isn't all that great..
I understand that "designer dogs" are an hot item.. but I'm not a big 'producer' of dogs, I'm not breeding a 'tea cup' chi.. or a short nosed, long haired, short legged being.. And I'm not selling them in a pet shop either..
I'm just trying to breed a healthy litter of pups with my two very healthy, tested, pedigree dogs, with good characters... And I'm still not seeing a problem...