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International study on Artemia: XXXV. Techniques to manipulate the fatty acid profile in Artemia nauplii, and the effect on its nutritional effectiveness for the marine crustacean Mysidopsis bahia (M.)
Léger, P.; Naessens-Foucquart, E.; Sorgeloos, P. (1987). International study on Artemia: XXXV. Techniques to manipulate the fatty acid profile in Artemia nauplii, and the effect on its nutritional effectiveness for the marine crustacean Mysidopsis bahia (M.), in: Sorgeloos, P. et al. Artemia research and its applications: 3. Ecology, culturing, use in aquaculture. Proceedings of the Second International Symposium on the brine shrimp Artemia. pp. 411-424
In: Sorgeloos, P. et al. (1987). Artemia research and its applications: 3. Ecology, culturing, use in aquaculture. Proceedings of the Second International Symposium on the brine shrimp Artemia. Universa Press: Wetteren. 535 pp., meer
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Documenttype: Congresbijdrage
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Artemia Leach, 1819 [WoRMS]; Mysidopsis bahia Molenock, 1969 [WoRMS]
Marien/Kust |
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- Léger, P.
- Naessens-Foucquart, E.
- Sorgeloos, P., meer
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| Abstract |
The importance of essential fatty acids for the early larval stages of cultured marine fish and crustacean larvae is well documented. In this regard, the variability in essential fatty acid content of their live prey Artemia is critical.This paper describes different techniques for improving the fatty acid profile in Artemia nauplii using microparticles and emulsions as enrichment diets. These diets can be applied during the incubation of the cysts and/or after the separation of the nauplii. After enrichment, the nauplii not only contain high levels of the essential fatty acid 20:5 omega 3 (up to 13.5% or 35.2 mg/g) but also considerable levels of 22:6 omega 3 (up to 7% or 18.1 mg/g), another essential fatty acid which is rarely found in Artemia . Fatty acid enrichment of Artemia nauplii therefore not only minimizes differences in nutritional quality between strains (e.g. in 20:5 omega 3 content), but it also converts the nauplii into a high quality food (e.g. 22:6 omega 3). The beneficial effect of using essential fatty acid enriched Artemia as a larval diet is demonstrated in a bioassay test with Mysidopsis bahia (M.). |
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