Cows In Action:The Wild West Moo-ster

This book is about some cows, but not just any old cows, these cows travel back in time fighting the F.B.I. The cows are named Bo, Pat and Professor McMoo. Professor McMoo is a really big technology freak and has built a time machine out of lots of old stuff. They travel back in time to the Wild West to hunt for the Wild West Moo-ster who is eating all the cows in the land. Can Pat, Bo and Professor McMoo beat the Wild West Moo-ster before all of history is messed up?