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Fishmeal-free Atlantic salmon feed formulation shows promise

Joint research between The Conservation Fund Fresh Water Institute (TCFFI), USDA and EWOS uses new diet for post-smolt to food-size fish. The objective of this project was to evaluate the effects of a fishmeal-free diet on Atlantic salmon post-smolt performance and fillet quality during growout to market-size in a commercial-scale, land-based, closed-containment system using water recirculation technology. The production system…

Health food to reduce sea lice problem

Norway — Currently and for the foreseeable future, sea lice (Lepeophteirus salmonis) is and will be the main challenge for the salmon farming industry. The sea lice live naturally in the ocean. When the number of host fish increases, the amount of lice will also increase. Because the density of salmon in farm cages is…

An additive in feed technology with triple benefits

Scientists at Nofima have developed a process additive with triple benefits: it functions as a binding agent, has high nutritional value, and makes it easier to produce fish feed with good physical properties. The additive can contribute to reducing the loss of feed in the aquaculture industry, and make the production of feed more energy-efficient.…

Food factory for baby fish is first of its kind

Norwegian company C-Feed builds world’s first industrial plant for copepods – a fish-fry feed for the production of ballan wrasse, tuna, halibut and other marine species. Unique technology from SINTEF, NOK 13 million in fresh capital and an annual market potential of NOK 2 billion are the ingredients of the new factory which is located…

Iowa State University researchers make fish food from Iowa agricultural commodities

Researchers at Iowa State University are charting new waters by turning the state’s agricultural commodities into fish food, work that could help farmers find new revenue streams and provide a boost to U.S. fish production. Kurt Rosentrater, an assistant professor of agricultural and biosystems engineering, is studying how food derived from corn and soy can be…

Fewer Wild Fish Needed: Genetically Modified Plants Produce Omega-3 Fish Oil

Researchers have revealed that genetically modified Camelina plants produce omega-3 fish oils suitable for feeding Atlantic salmon. The new GMO plants can produce up to 20% of eicosapentaenoic acid (EPA), one of the two omega-3 LC PUFA conferring health benefits. Consumption of omega-3 fish oils, specifically long-chain polyunsaturated fatty acids (omega-3 LC-PUFA), through eating oily fish like salmon…

Making fish food from captured carbon Mongstad pilot will grow omega-3-rich algae

A new pilot project at Norway’s Technology Centre Mongstad (TCM) will use captured CO2 to grow omega-3 fatty acid-rich algae for fish feed. The Norwegian aquaculture industry is worth US$10.2 billion/y to the Norwegian economy, and as demand for fish grows, so too does the demand for fish feed. Omega-3 fatty acids are essential for fish growth and are added to feed. These are usually obtained from small oily fish, but stocks…

New knowledge revolutionising feeds

Over the past few years, the salmon farming industry has gone from being a major consumer of marine protein to becoming a net producer of it – a turnaround made possible by a deeper understanding of the nutritional requirements of salmon. Norwegian Minister of Fisheries Elisabeth Aspaker is hoping to see the Norwegian aquaculture industry…