Are mixed breeds in dogs are hard to breed?

Well there are about 600 dog breeds so think how many dog mixs there can be so you might have to do some research. It might be a labradoodle, poodle-lab mix or a aussiedoodle, poodle-aussie mix so...

You have to have to different types of dogs, say a boxer and poodle(not what I would suggest, it just came to mind). They have to be a boy and a girl, it doesn't matter which is which. Breed them, so...

Mutt or mongrel

A dog can become a mixed breed when its parents are two different purebred breeds Ex.) Labrador + Poodle = Labradoodle

Too many and many or most in shelters waiting for adoption or euthanasia with new litters arriving every moment of the day. Please spay and neuter your dogs to prevent unwanted pregnancies and...