Neighbor woke up in morning and found dead mutilated calf near porch.a round hole was where testicles were. Calf was separated impossibly from cow by a fence. Cow was at other end of pasture. Neighbor couldn't understand how calf was separated from its mother. He thought it was strange that he hadn't heard any dogs barking. Neighbor wanted to shoot a dog but he didn't see any.Nothing else seemed wrong with the calf other than the round hold where testicles were.