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The levels of environmental pollutants are higher in Norwegian wild salmon than in Norwegian farmed salmon. These are the results of a recent Norwegian study.
In order to find out how much fish oil and fishmeal are used in the production of farmed fish, the ratio between the amount of wild fish in the feed and the amount of farmed fish produced is calculated.
NIFES does not use so-called ‘designer salmon’ when checking that Norwegian farmed salmon is safe to eat. For that purpose, we analyse more than 12,000 ordinary farmed salmon.
Farmed salmon often lose their sight in summer as cataracts make their eyes opaque. This happens when the temperature rises, but exactly why it happens has only now been discovered.