A TeaM,
Probably is true. Growing up, my parents had cattle. A lot of times when people buy a bull from you, they want to be sure he is not "shooting blanks." To get a sample for a sperm count the vet inserts an electric probe up the back side and turns on the juice, and, well, things start heppening.
Always thought this must really be a conflict of emotions for the poor animal!! Anyway, the chinese can keep that one for themselves, as far as I'm concerned!