Atlantic cod (Gadus morhua) fed diets with salmon bones showed increased feed intake and growth

摘要

GLOBAL aquaculture grows more than any other food-producing sectors, and farming of new species such as cod triggers the development of new alternative feed ingredients. Wild cod seem to consume a wide range of foods, and the stomach content of cod incoastal areas shows that mineral rich foods such as bivalves and crabs are essential food items. A recent study at Fiskeriforskning on inclusion of fish bones and crab by-products in diets for Atlantic cod (Gadus morhua) indicated that such ingredientscould beneficially be included in the diets. As new legislation may allow cross-species feeding, the use of by-products from the salmon industry as feed ingredients in coct feed is realistic. In Norway the yearly production of salmon represents about 40,000 metric tonnes of salmon bones alone, which could become an alternative to limited marine feed resources.