IAWS interporc: Certificate that endorses good practices in animal welfare, well being, biosecurity and traceability within the white pork value chain in Spain. Together with acorn-fed pigs, field-fattened pigs principal diet regime are a mixture of feed (created from cereals and legumes) and purely natural sources within the dehesa, such as https://www.durovis.com/nl/board_topic_4925_88.html