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Paracetic acid ‘very promising’ as treatment for amoebic gill disease

Paracetic acid ‘very promising’ as treatment for amoebic gill disease

Scientists looking into peracetic acid as an alternative to hydrogen peroxide for the treatment for amoebic gill disease (AGD) in farmed salmon have said initial results are very promising, but the treatment needs further optimisation before it can be used.

Revealed: the impact of different delousing methods on salmon growth

Revealed: the impact of different delousing methods on salmon growth

All delousing treatments negatively affect the growth rate of farmed salmon but mechanical delousing, particularly thermal delousing, have had the biggest impact, researchers in Norway have found.

Can fish sludge feed the insects that can feed fish?

Can fish sludge feed the insects that can feed fish?

Researchers in Norway have been granted NOK 10 million (£832,000) to look at the possibilities of safely using fish farm sludge as a feed for animals such as black soldier fly, which could then be used to make protein for fish feed.

Yersinia bacteria ‘spread by thermal delousing’

Yersinia bacteria ‘spread by thermal delousing’

Fish with asymptomatic infection by the bacterium Yersinia ruckeri can secrete significant amounts of infectious agent during thermal delousing, experiments carried out at Norway’s Veterinary Institute show.

Is virus mutation to blame for Norway ISA increase?

Is virus mutation to blame for Norway ISA increase?

An increase in infectious salmon anaemia (ISA) outbreaks in Norway this year may be linked to changes in the ISA virus, the Norwegian Veterinary Institute suspects.

Changes in IPN virus strip salmon of protection

Changes in IPN virus strip salmon of protection

Trials with infectious pancreatic necrosis (IPN) virus show that family lines of salmon genetically selected for resistance to the disease are no longer as protected as they once were because the virus has changed.

Norway: CMS is a wider problem than thought before

Norway: CMS is a wider problem than thought before

Cardiomyopathy syndrome (CMS) in farmed salmon is more widespread than previously believed, a report from the Norwegian Veterinary Institute shows.

‘Gentler’ acid proposed as AGD treatment

‘Gentler’ acid proposed as AGD treatment

Researchers in Norway and Denmark have concluded that peracetic acid is a more sustainable alternative to hydrogen peroxide to deal with amoebic gill disease (AGD) in salmon.

Study: Microplastic captured in salmon gills and cells

Study: Microplastic captured in salmon gills and cells

Researchers in Norway have found microplastics in gills from farmed salmon, and seen that this type of plastic can be “eaten” by the body’s cleansing cells.