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Fishmeal-free Atlantic salmon feed formulation shows promise

Fresh Water Institute produced land based salmon using fish meal free feed.  Photo: Tor-Eddie Fossbakk/ACG

Fresh Water Institute produced land based salmon using fish meal free feed. Photo: Tor-Eddie Fossbakk/ACG

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 required the addition of very little new water (i.e., on average more than 99 percent of the water was being recycled at any given time), and captured the majority of waste solids during the trial. In addition, the system was equipped with multiple barriers that ensured that no salmon escaped to the outside environment and that no obligate fish pathogens entered the facility.

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