Définition d'un modèle d'élevage larvaire intensif pour la daurade Sparus auratus

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Éditeur(s) Aix-Marseille 2
Identifiant documentaire 9-1679
Identifiant OAI oai:archimer.ifremer.fr:1679
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Auteur(s): Ounais-guschemann, Nadia
Mots clés Sparus auratus Pisces Marine fish Environmental diseases Fatty acids Amino acids Controlled conditions Juveniles Culture tanks Growth Light effects Nutritional requirements Fish larvae Syndrome de paroi Nutrition Alimentation Lumière Inflation primaire de la vessie natatoire Sparus auratus Elevage larvaire intensif Poisson
Date de publication 01/01/1989
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Droits de réutilisation info:eu-repo/semantics/openAccess

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This study defines rearing parameters for mass products of 30-day old post larvae. Continuous lighting (600 lux) optimizes the predatory activity and suppresses the feeding rhythm. For 4-5 mm larvae (15 days), food ingestion slows down if the prey concentration in the tank is below 5 rotifers/ml, while there is no such threshold for 6-7 mm larvae (22 days). The rotifer Brachionus plicatilis , between 100 and 200 mu m, is an adequate initial prey, it can be replaced by Artemia salina for 7-8 mm larvae (30 days). It is observed that free amino acids and essential fatty acids contents have a prominent role in larvae growth; docosahexaenoic acid (C22:6n-3) content could be determined. Finally, the development of the swim bladder is facilitated by the renewal of water and air, and by continuous elimination of the superficial oily film through a blower combined with a floating trap.
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