Fish meal is a commercial product mostly made from fish that are not generally used for human consumption. While the larger percentage is manufactured from sustainable, managed, and monitored fish stocks of wild-caught, small marine fish, a small portion is also made from the by-products of processing fish such as fish canning. If the fish is a fatty fish, it is first pressed to extract the fish oil.
Fish meal is primarily used as a protein supplement in compound feed. It is predominantly (60%) used in aquaculture feed. Typical diets of farmed fish include 32% to 45% total protein by weight. High-quality fishmeal normally contains between 60% to 72% crude protein by weight.
Fish oil is oil derived from the tissues of oily fish. Fish Oil is the component remaining after the solids and moisture have been extracted in the normal rendering process. This finished product is used as an energy source for aquaculture and animal feed. It is one of many ingredients that a nutritionist will use to formulate a complete feed.