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The effects of dietary long-chain essential fatty acids on growth and stress tolerance in pikeperch larvae (Sander lucioperca L.). / Lund, Ivar; Steenfeldt, Svend Jørgen.

In: Aquaculture Nutrition, Vol. 17, No. 2, 2011, p. 191-199.

Publication: Research - peer-reviewJournal article – Annual report year: 2009

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Lund, Ivar; Steenfeldt, Svend Jørgen / The effects of dietary long-chain essential fatty acids on growth and stress tolerance in pikeperch larvae (Sander lucioperca L.).

In: Aquaculture Nutrition, Vol. 17, No. 2, 2011, p. 191-199.

Publication: Research - peer-reviewJournal article – Annual report year: 2009

Bibtex

@article{4110849ca8af4472a0ba7eda749aaa14,
title = "The effects of dietary long-chain essential fatty acids on growth and stress tolerance in pikeperch larvae (Sander lucioperca L.)",
publisher = "Wiley-Blackwell Publishing Ltd.",
author = "Ivar Lund and Steenfeldt, {Svend Jørgen}",
year = "2011",
doi = "10.1111/j.1365-2095.2009.00724.x",
volume = "17",
number = "2",
pages = "191--199",
journal = "Aquaculture Nutrition",
issn = "1353-5773",

}

RIS

TY - JOUR

T1 - The effects of dietary long-chain essential fatty acids on growth and stress tolerance in pikeperch larvae (Sander lucioperca L.)

A1 - Lund,Ivar

A1 - Steenfeldt,Svend Jørgen

AU - Lund,Ivar

AU - Steenfeldt,Svend Jørgen

PB - Wiley-Blackwell Publishing Ltd.

PY - 2011

Y1 - 2011

N2 - The nutritional requirements of pikeperch larvae have been sparsely examined. Dietary polyunsaturated fatty acids, arachidonic acid (ARA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) may affect growth and physiological stress response in marine fish larvae, but these mechanisms have not received as much attention in freshwater fish. Pikeperch larvae were reared on Artemia from day 3 until 21 days posthatch. Artemia were enriched with six formulated emulsions, with inclusion of either fish oil, pure olive oil (POO) or olive oil supplemented with various combinations of ARA, EPA and DHA. Larval tissue FA was significantly related to the content in the diets, but larval growth was similar for all treatments. When exposed to stress by confinement in small tanks with culture tank water or saline water (15 g L−1.), mortality in larvae treated with POO was significantly higher than in the remaining treatments while tissue cortisol contents in these fish seemed lower. The findings of a lower stress response in larvae fed POO may be related to the lower tissue content in these larvae of essential fatty acids especially DHA but also EPA and ARA.

AB - The nutritional requirements of pikeperch larvae have been sparsely examined. Dietary polyunsaturated fatty acids, arachidonic acid (ARA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) may affect growth and physiological stress response in marine fish larvae, but these mechanisms have not received as much attention in freshwater fish. Pikeperch larvae were reared on Artemia from day 3 until 21 days posthatch. Artemia were enriched with six formulated emulsions, with inclusion of either fish oil, pure olive oil (POO) or olive oil supplemented with various combinations of ARA, EPA and DHA. Larval tissue FA was significantly related to the content in the diets, but larval growth was similar for all treatments. When exposed to stress by confinement in small tanks with culture tank water or saline water (15 g L−1.), mortality in larvae treated with POO was significantly higher than in the remaining treatments while tissue cortisol contents in these fish seemed lower. The findings of a lower stress response in larvae fed POO may be related to the lower tissue content in these larvae of essential fatty acids especially DHA but also EPA and ARA.

U2 - 10.1111/j.1365-2095.2009.00724.x

DO - 10.1111/j.1365-2095.2009.00724.x

JO - Aquaculture Nutrition

JF - Aquaculture Nutrition

SN - 1353-5773

IS - 2

VL - 17

SP - 191

EP - 199

ER -