USA - USDA Releases Standards for "Naturally Raised"
http://www.porkmag.com/directories.asp?pgID=675&ed_id=7032
22-Jan-2009 (17 years 4 months 23 days ago)The standard states that the livestock used in naturally raised meat products:
• Have been raised entirely without growth promotants and without antibiotics (except for ionophores used as coccidiostats for parasite control).
• Have never been fed animal byproducts.