NEW WESTMINSTER, British Columbia — A Canadian pig farmer whom prosecutors said confessed to killing 49 women told police in a videotaped interview shown to jurors yesterday that the allegations against him were “hogwash,” yet concedes he’s “a bad dude.”

Robert Pickton, 56, is charged with killing 26 women, mostly prostitutes and drug addicts who vanished from a drug-ridden Vancouver neighborhood in the 1990s. He has pleaded not guilty to the first six counts. A separate trial will be held for the other 20 murder charges.

If convicted, Mr. Pickton faces life in prison. Canada abolished the death penalty in 1976.

The jurors in the most sensational murder trial Canada has ever faced began watching 11 hours of videotaped interviews yesterday. A day earlier, prosecutors said the interviews would go on to show Mr. Pickton telling an undercover police officer that he had killed 49 women and intended to make it “an even 50” before he got sloppy and was caught.

In the interview with the Royal Canadian Mounted Police detachment in Surrey, British Columbia, on February 23, 2002, a disheveled Mr. Pickton laughs when Staff Sergeant Bill Fordy tells him he’s being investigated for “upwards of 50 other disappearances and or murders.”

“Hogwash,” Mr. Pickton answered. “I’m just a working guy, a plain working guy is all I am,” he says. “I’m just a pig man.”