This study reports the use of the annelid wormEnchytraeus albidus as a live feed for reared juvenile European flounder,Platichthys flesus. We investigated growth, lipid composition and mortality in small scale (hundreds of fish) and large scale (thousands of fish) rearing. LiveEnchytraeus had a relatively low content of the essential omega-3 fatty acid, docosahexaenoic acid (DHA), but similar levels of other essential fatty acids and amino acids as the normally used commercial dry feed. Despite low DHA levels in live worms, juvenile flounder fedEnchytraeus grew twice as fast as fish fed commercial dry feed. DHA levels in membrane phospholipids of juvenile flounder became depleted when fedEnchytraeus, but this had no apparent negative consequences for development or health of the fish. Our study suggests that the use ofEnchytraeus as a live feed for European flounder is feasible at a large scale.
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This study reports the use of the annelid wormEnchytraeus albidus as a live feed for reared juvenile European flounder,Platichthys flesus. We investigated growth, lipid composition and mortality in small scale (hundreds of fish) and large scale (thousands of fish) rearing. LiveEnchytraeus had a relatively low content of the essential omega-3 fatty acid, docosahexaenoic acid (DHA), but similar levels of other essential fatty acids and amino acids as the normally used commercial dry feed. Despite low DHA levels in live worms, juvenile flounder fedEnchytraeus grew twice as fast as fish fed commercial dry feed. DHA levels in membrane phospholipids of juvenile flounder became depleted when fedEnchytraeus, but this had no apparent negative consequences for development or health of the fish. Our study suggests that the use ofEnchytraeus as a live feed for European flounder is feasible at a large scale.
All Time | Past 365 days | Past 30 Days | |
---|---|---|---|
Abstract Views | 0 | 0 | 0 |
Full Text Views | 200 | 134 | 22 |
PDF Views & Downloads | 249 | 149 | 10 |