Commercial fish feed

Many of the fish farmed more intensively around the world today are carnivorous, such as Atlantic salmon, trout, sea bass, and turbot.

They are combined with other ingredients such as vegetable proteins, cereal grains, vitamins and minerals and formed into feed pellets.

In the early 1950s, John E. (Red) Hanson, while working for the New Mexico Game and Fish Department, began experimenting with dietary routine and dry pellet formulations.

[3] Fishmeal is a brown, flour-like material made by specialist producers that cook, press, dry and grind the fish.

Fish in general also are good sources of many vitamins and minerals and are often recommended as part of a healthy diet by governmental food agencies.

[11] In 2020 scientists reported the development of a microalgae-based fish-free aquaculture feed with substantial gains in sustainability, performance, economic viability, and human health.

The feed consists of protein-rich defatted biomass of Nannochloropsis oculata and whole cells of DHA-rich Schizochytrium sp.

[12][13] Modern fish feeds are made by grinding and mixing together ingredients such as fishmeal, vegetable proteins and binding agents such as wheat.