Algal oil shows promise as fish-oil substitute in feed for young salmon

Algal oil can replace fish oil in the feed of farmed Atlantic salmon parr without affecting their growth or ability to transition to seawater.

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Algal oil shows promise as fish-oil substitute in feed for young salmon

Feed & Nutrition

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Managing health issues in the fast-changing aquaculture industry

An interview with Stian Johnsen, project manager for the World Organization for Animal Health 

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How to balance fish welfare and environmental protection in aquaculture

Fish farmers’ efforts to protect the environment often come at a cost to fish welfare, say scientists at the University of Melbourne, in a new opinion paper.

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New knowledge could aid diagnosis of salmon farms’ troublesome cardiac disease

Screening plasma and kidney samples could prove a useful method to provide early diagnosis of cardiomyopathy syndrome (CMS), a common viral disease which causes mortality and welfare issues in Atlantic salmon farming.

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Non-medicinal delousing approaches cause damage to salmon gill tissue

New research shows that thermal and mechanical delousing techniques used in Atlantic salmon aquaculture can cause damage to gill tissue, though the health impacts of this on farmed fish remain unknown.

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Seaweed supplements show promise as immunostimulants in aquaculture

Supplementing the diets of farmed fish with seaweeds or their extracts has “substantial positive impacts” on fish health, growth and survival, according to new analysis by scientists.