Nutreco-owned fish feed giant Skretting is launching two new salmon grower diets -- Prime and Express -- designed "to stimulate and enhance the appetite and food intake of salmon."

Sissel Susort, global product group manager for Skretting, said the two diets "work in tandem to facilitate the best possible growth of the fish at two crucial growth stages."

Prime optimizes consumption at the first seawater growth phase of the production cycle -- up to 1 kilogram -- while Express takes over in the final grow-out phase.