The USDA and scientists at the Oceanic Institute in Waimanalo, Hawaii are developing fish feed made from fish byproducts including heads, tails, bones, skins, and internal organs–all parts that would normally be thrown away). According to PhysOrg, feed made from discarded pieces of Alaskan pollock and cod is as high quality as feed made from Norwegian fishmeal, generally thought to be the best fishmeal available. The fish byproducts even work as feeding stimulants, causing shrimp to consume even more of the feed.
So is there a downside to giving fish this head and internal organ-filled feed? Not really. Fish are already fed fish-containing fishmeal. The Oceanic Institute’s feed simply prevents fish parts from going to waste. Ultimately, we should probably be more concerned about the genetically altered salmon heading to our dinner tables.AS