I love cow jokes. They always put me in a good mood.

What do you call a cow with no legs?
Ground beef.

2 cows walk into a bar and order beers. One cow tells the bartender, "I'm on a diet, so only give me a Heifer beer.

The other one says, "I'll take the Holstein."

They stiffed the keep when they left and he said, "Damn, and they looked like a couple of big tippers!"

Who was Arnold Ziffel's favorite movie star?

Rod Sty-ger.

(Of course, he's kind of partial to John Hamm, too).