Originally Posted by skp20040:
“A true mongrel is of an unkown breed or multiple breeds over the years , and they trend to be the stronger healthier dogs.
The new , well not really so new but recognised breeds (recognised by breeders but not by the powers that be who prefer pure bred even if they are ill due to it ) such as Cockapoos and Spanadors are the interbreeding of two different breeds from two pure pedigree dogs to create the new dog. So the new dog is not so much mongrel as an unknown breed but it will be that bit stronger and healthier than a pure pedigree of one breed.”
And so the myth continues

If the two pedigree breeds that some spanner mates together, share the same health issues eg eyes, hips, heart problems etc then the cross bred offspring have just as much chance of inheriting the same problem. Fancy crossbreeds are simply an opportunity for ill-informed people to sell puppies to ignorant (of the individual health issues) puppy buyers who most responsible, pedigree breeders would have turned away.