Why did the filmakers of the animated movie Barnyard put utters on the Male Cows?

The udders on the "male cows" aren't meant to be gender
characteristics: they are just props for generating laughs. Steve
Oedekerk, the creator of "Barnyard," has said that he simply finds
udders to be funny.

"Do Californians have no concept of biology? Oedekerk has said in
published interviews that he is quite aware that bulls don't have
udders, but udders are funny and so that's the way he wanted to draw
them."

Keyframe Community: Udderly revolting
http://www.keyframeonline.com/forum/showthread.php?t=388

"Why do the male cattle in the movie Barnyard have udders? Because
director Steve Oedekerk says cows are funnier than bulls, that?s why.
And he?s right."

Philadelphia Weekly Online: Wombat out of Hell
http://www.philadelphiaweekly.com/view.php?id=12882

"The film doesn?t go for the ultra realism of other CGI efforts, but
adopts an appropriate comic page look. (Yes, there are no bulls, just
'male cows' - and they have udders. Why? As Oedekerk explains, 'Udders
are funny.')"

Reel Reviews: Barnyard: The Original Party Animals
http://kcactive.com/aande/reel/reel2006_08.htm#barnyard

"Little were they anticipating controversy. But now, the 'Barnyard'
folks are faced with one relentless question that just won't go away:
Why do the movie's boy cows have udders?

'It's funny. For something that I spent, probably, .002 seconds on,
it's become quite the talk,' says Steve Oedekerk, Barnyard's
writer-director-producer. 'There was never a real decision made. I get
a lot of images that pop into my head. I've always thought cows are
kind of funny animals - and udders are funny.

'They're not there to define gender,' Oedekerk soberly clarifies. 'In
the movie, the men are clearly men, the women are clearly women.
There's no weird stuff that's going on. It just looks funny'."

LA Daily News: Udder nonsense
http://www.dailynews.com/film/ci_4132481

My Google search strategy:

Google Web Search: barnyard oedekerk "have udders"
://www.google.com/search?hl=en&q=barnyard+oedekerk+%22have+udders%22

I hope this is helpful. If anything is unclear or incomplete, please
request clarification; I'll be glad to offer further assistance before
you rate my answer.

Best regards,
pinkfreud

What is a "Male Cow"? Anything like a "female bull"?

That is Steve Oedekerk explanation, and it is harmless and creates
interest in the film, but maybe he recognized that providing them with
the usual equipment might really upset some people, and giving them
none would raise questions that he could not answer with humor.

I agree. I've seen this question several times on various boards.
People complain that the uddered male-cows are unrealistic. I must
ask, what's so realistic then about barnyard animals who talk and
watch TV?

Try to explain this to the first 4 year old who tries to milk a bull.  

Of course, no one expects a movie like this to be realistic, its a
cartoon with talking animals, but, it just looks weird for bulls to
have udders to the point that I was distracted by it while watching
the film with my daughter. I kept asking myself.....do bulls have
udders? are there really "male cows".

Just distracting.

Who says they are bulls?  Of course, I haven't seen the film, but why
couldn't they be dike bovines?

Sometimes, I wouldn't mind being the Little Dutch Boy.

all4him, did you ever see "City Slickers 2: The Search For Curly's
Gold"? I'm thinking of the scene in which John Lovitz describes how he
milked Billy Crystal's cow. Hilarious.