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Titolo:
Effect of algal addition on stability of fatty acids and some water-soluble vitamins in juvenile Artemia franciscana
Autore:
Olsen, AI; Maeland, A; Waagbo, R; Olsen, Y;
Indirizzi:
SINTEF Fisheries & Aquaculture, N-7465 Trondheim, Norway SINTEF Fisheries & Aquaculture Trondheim Norway N-7465 Trondheim, Norway Directorate Fisheries, Inst Nutr, N-5804 Bergen, Norway Directorate Fisheries Bergen Norway N-5804 t Nutr, N-5804 Bergen, Norway Norwegian Univ Sci & Technol, Trondhjem Biol Stn, N-7491 Trondheim, NorwayNorwegian Univ Sci & Technol Trondheim Norway N-7491 1 Trondheim, Norway
Titolo Testata:
AQUACULTURE NUTRITION
fascicolo: 4, volume: 6, anno: 2000,
pagine: 263 - 273
SICI:
1353-5773(200012)6:4<263:EOAAOS>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
TURBOT SCOPHTHALMUS-MAXIMUS; ASCORBIC-ACID; BRACHIONUS-PLICATILIS; LIVE FOOD; HIPPOGLOSSUS-HIPPOGLOSSUS; DICENTRARCHUS-LABRAX; ATLANTIC HALIBUT; LARVAE; REQUIREMENTS; MICROALGAE;
Keywords:
ascorbic acid; DHA; Isochrysis galbana; juvenile Artemia franciscana; loss rates;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
47
Recensione:
Indirizzi per estratti:
Indirizzo: Olsen, AI SINTEF Fisheries & Aquaculture, N-7465 Trondheim, Norway SINTEF Fisheries & Aquaculture Trondheim Norway N-7465 Norway
Citazione:
A.I. Olsen et al., "Effect of algal addition on stability of fatty acids and some water-soluble vitamins in juvenile Artemia franciscana", AQUAC NUTR, 6(4), 2000, pp. 263-273

Abstract

A minor stabilization effect was found for the content of total lipids, total fatty acids and docosahexaenoic acid (DHA) when Artemia franciscana wasmaintained at high concentrations of Isochrysis galbana for 72 h at 12 degreesC, both in 3- and 4-day-old individuals. The eicosapentaenoic (EPA) level was only stabilized at higher algal concentrations in the 4-day-old A. franciscana. In the 3-day-old A. franciscana, the EPA content increased at all algal concentrations during the first 24 h of post enrichment, presumably as an effect of DHA catabolism. Apparently, the 4-day-old A. franciscana metabolized DHA, and other lipids, faster than the 3-day-old A. franciscanadid. During the 72 h incubation with I. galbana, the content of ascorbic acid (AA) in A. franciscana increased approximately to 1000-1200 mug g(-1) dry weight (DW) at algal concentrations above 3 mg C L-1, close to AA content of the algae. The vitamin B-6 content in A. franciscana decreased from approximately 20 to 4-11 mug g(-1) DW, with highest loss rates at the higher algal concentrations. The thiamin content of A. franciscana was independentof algal concentration and remained at 20-30 mug g(-1) DW. The nutritionaleffects of the algal incubation on the 3- and 4-day-old A. franciscana at algal concentrations which can be used during the cultivation of Atlantic-halibut larvae (<2 mg C L-1) was insignificant, except for the small enrichment effect of AA already at 1 mg C L-1. Other beneficial effects of the algae should not be ruled out, like possible effects on the microflora of A. franciscana even at algal concentrations less than 2 mg C L-1.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 08:21:35