Herodias and Sumu can be matched, but not herodias and Sumu, but Herodias and Sumu. Only in this way can production be guaranteed. Otherwise, if the male dog is bigger than the female dog, it will cause a huge fetus. At that time, I'm afraid I can only choose caesarean section, because the birth canal is not enough, and natural production is not good, which is very harmful to the bitch.