CORVALLIS, Ore. >> Few people are ever happy with Pac-12 officials, but UCLA was especially displeased on Saturday.

Even after a dominant 41-0 win over Oregon State at Reser Stadium, UCLA quarterback Josh Rosen was upset with what he perceived as unfair tactics by the Beavers’ defense.

“It was kind of B.S. what they were doing on the defensive line,” Rosen said. “They were calling cadences, saying ‘set, hut.’ All these false starts and stuff on our offensive linemen, it wasn’t on them. They were trying as hard as they could.”

UCLA’s offensive line was called for seven false starts, including two on a scoring drive that gave the Bruins a 17-0 lead in the second quarter. Rosen even took the blame for one of the flags, saying that he accidentally said a cadence out loud after the team had switched to a silent count.

“Sometimes, you’re just really anxious to go,” Rosen said. “You hear a sound, and you just go for it. It was just tough.”

Rule 7-1-5-a-3 of the NCAA rulebook states: “No player shall use words or signals that disconcert opponents when they are preparing to put the ball in play. No player may call defensive signals that simulate the sound or cadence of (or otherwise interfere with) offensive starting signals.”

However, Rosen said that when he pointed out what Oregon State’s defensive line was doing, officials continued to allow it.

“They said it was grunting as they shifted,” he said. “As they shifted, they grunted or something. It was ridiculous. … It should be illegal, but they didn’t call it.”

Head coach Jim Mora did not accuse either Oregon State or referees of misconduct, but was not eager to discuss the cause of the Bruins’ false starts.

“There was something going on up front,” he said. “I’m not going to talk about it, because it doesn’t matter what I say. I’ll tell you this — it wasn’t on UCLA.”

Fairbairn nears record

UCLA kicker Ka’imi Fairbairn is in the midst of a stellar senior campaign, one that has seen him hit a school-record 60-yard field goal and be named as a Lou Groza Award semifinalist.

Against the Beavers, he hit field goals from 38 and 29 yards away, as well as five extra points. The showing moved him to second place in UCLA history with 389 career points, just one shy of John Lee’s school record.

Fairbairn credited the Bruins’ potent offense for getting him this far.

“It just doesn’t come into your mind until this part of the season,” he said. “A record like this, it may say my name on it, but I don’t think there’s a record that has more team effort.”

Extra points

Center Jake Brendel made his 48th career start, tying linebacker Spencer Havner for the school record. Havner reached the same mark from 2002-05. … UCLA played four quarterbacks against Oregon State, subbing out Rosen with 12:50 left in the game. Backup Jerry Neuheisel threw for 31 yards, while Mike Fafaul had 21 yards. Jake Hall threw a 5-yard pass in his first career appearance.