I worked with a guy back in the '80s that had a house that backed up to some large fields with a very large bull and a bunch of cows. He said one day the vet came out, so he went to watch, and had that bull tied up to his truck. The vet stuck a rod up the bulls arse and had some contraption hooked to the bulls male part. He said the rod was hooked to the battery of the truck and when the vet hit a switch that bull went to his knees and filled up the cup thing with baby cow stuff. I had wondered how they got the stuff to do the artificial insemination. :confused2: