A sidestream from egg production as a resource-smart, nutritious fish feed ingredient – a compilation of knowledge

The Swedish Food Agency recommends increasing national consumption of seafood, which is both nutritious and healthy.

The fish we eat is largely imported and farmed in other countries, with a significant environmental impact.In Sweden, there are good conditions for producing resource-smart seafood with a low climate impact and good access to both fresh- and saltwater. This has contributed to an increased interest in fish farming in Sweden.

A major challenge in creating sustainable fish farming is to develop energy- and raw material-efficient processing and manufacturing techniques for fish feed. Fish feed accounts for a significant proportion of the fish´s climate impact. There is no national fish feed production today, which is why it is a challenge to farm fish with a low climate impact.

Meanwhile, the nutrient-rich sidestream, broken eggs, from egg production is today sent to biogas plants.The project aims to compiles opportunities and obstacles to increasing the value of the sidestream.

The project will compile existing research data in the fish feed area with a focus on egg sidestream and make it available.

However, the value will be increased if the sidestream can be processed into an ingredient for fish feed, which complies with feed legislation.

In this way, ingredients for a resource-smart, sustainable and nutritious fish feed can be produced nationally, which, in turn, contributes to competitive fish farming in Sweden.