Pig farmers have spent the night protesting at a meat processing plant in Drogheda as part of an ongoing campaign to secure higher prices for pig meat.

The farmers say the cost crisis they have been facing for months has not eased and many can no longer afford to feed their pigs.

IFA Pigs Committee chairman Roy Gallie said farmers are going out of business.

"Since January we have held 13 protests and we have got 26c increase on prices. That is two cent protest," he said.

"We are going out of business as we speak and cannot feed out pigs," he added.

He said retailers maintain they are paying more for pork products while factories say they have not and producers need clarity.

He added that farmers need a significant price increase to alleviate the ongoing severe haemorrhaging of money at pig farm level.