It was udder mayhem in New Jersey.

A cow headed to a slaughterhouse escaped from a truck early Thursday and hoofed it along a Jersey road, where a state trooper-turned-cowboy tried to wrangle the headstrong heifer.

“He tried to get around it and hold it and then he’s riding it like a bull down Route 80,” Paterson Police Director Jerry Speziale told northjersey.com.

Almost all of his on-duty officers responded to the cattle call about 2:40 a.m. about an injured bovine heading toward their city after it kicked open the second-story door to the trailer, he said.

Paterson Officer Brian Culmone, who also failed to reel the cow in with a rope, was helped by his partners who ended up using a strap from a passing tow truck to grab a hold of the wayward beast.

“That cow’s at least 1,000 pounds,” Speziale told the news outlet. “We could have had a major accident.”

Workers from the Skylands Animal Sanctuary Rescue of Wantage, NJ, eventually arrived along with its founder, Mike Stura, who was alerted about the runaway cow by a friend.

A video posted on the sanctuary’s Facebook page shows Stura and his crew struggling for several minutes to tie up the cow, which the cops and animal control workers had tied to the tow truck boom.

“I got there with a portable corral and put a couple of halters on her and got her into our trailer,” Stura told The Post.

The black-and-white Holstein – which he named Briana – suffered “some abrasions on her shoulder, around her right eye and ear and her knee,” Stura said.

“But other than that, she looks pretty good,” he added.

Briana has no beef with the rescuers because they took her to the sanctuary, which promotes a vegan lifestyle and will offer her greener pastures, Stura noted.

A veterinarian examined Briana, who will be kept in quarantine for a few days to make sure she isn’t sick before she’ll start milking it for all it’s worth.

“Hopefully, she’ll live a long, healthy life and dies of old age in 20 years,” Stura said.