The owners of Wally's Piggery at Murrumbateman in southern New South Wales have pleaded not guilty to animal cruelty charges.

Valent 'Wally' Perenc, Stephanie Perenc and WSL Investments are facing 53 charges in total for aggravated animal cruelty, failing to provide veterinary treatment and failing to comply with industry regulations.

The charges come after police and the RSPCA raided the piggery last year.

On Tuesday in the Yass Local Court the couple and their financial backer entered not guilty pleas through a lawyer.

The case will return to court in December.