About 200 people have gathered in Canberra's city centre calling for a New South Wales piggery to be shut down amid allegations of animal cruelty.

Authorities raided Wally's Piggery at Murrumbateman, near Canberra, earlier this month after receiving video footage from Animal Liberation Australia that showed the alleged mistreatment of animals.

Animal Liberation has now organised a 15,000-signature petition calling for the piggery to be shut down.

Protesters have also called for the inspection of all Australian piggeries, saying it is not an isolated incident.

The New South Wales Department of Primary Industries says investigations are continuing and the owner is complying with orders to improve the operation.

RSPCA chief executive Steve Coleman says they now need more information on who filmed and edited the video footage.

"In order for us to be able to use the footage, in terms of substantive evidence, what we have now done is written to Animal Liberation ACT and NSW and we've asked for their assistance in proving us with the details of who took the footage, who edited the footage," he said.

The piggery is being closely monitored but no charges have been laid at this stage.

Officials have also visited a second piggery near Young that is linked to the Murrumbateman property.