What if cows gave rootbeer instead of milk?

Well I don't really think cereal would be much a good breakfast anymore, if rootbeer came from cows. Cereal and rootbeer doesn't sound too good or healthy. I think when you "rootbeer" a cow (hehee instead of milk one) there would be a lot of foam to it. So it'd take a lot longer to "rootbeer" them. I don't think farmers would like that. They already got so much do to around the farm, the last thing they need to worry about is if their cow was jumping or running around, cuz then the rootbeer would be all shook up and squirt all over out of control.