Cloned Dog to become Daddy!

After two years it was born, Snuppy, the world’s first cloned dog, will be a father in May after two female dogs were artificially inseminated.
This is just the first time ever for a cloned male & female dog to reproduce, if they successfully give birth to their own puppies a new page of history will be recorded!
Source : Korea Times
why is it said that the cloned females were artificially inseminated?
: Maybe the male dog can’t have sex?
hmmm…. then it would be a painful process to get the female artificially inseminated