IAWS interporc: Certificate that endorses good practices in animal welfare, health, biosecurity and traceability during the white pork price chain in Spain. Besides acorn-fed pigs, industry-fattened pigs main diet program are a mix of feed (constructed from cereals and legumes) and normal resources within the dehesa, like grasses and occasionally acorns, http://molbiol.ru/forums/index.php?showtopic=928457&st=950&p=6086991#entry6086991