Norwegian salmon mortality rate up again

A record 62 million farmed salmon died in the sea phase in Norway last year, an official survey has shown. The figure is six million higher than in 2022, according to the Norwegian Veterinary Institute, corresponding to almost 17% of the total number of released in Norway that year. Edgar Brun, Director of Fish Health…

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Some de-licing methods can increase disease risk, study finds

Some sea lice treatments can increase the risk of bacterial infection for salmon, according to research by the Norwegian Veterinary Institute. A study found that thermal and non-thermal exfoliation of salmon by brushing or rinsing can result in a higher risk of the disease pasteurellosis. The findings are based on extensive tests carried out by…

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