Accoutumance de jeunes soles (Solea solea) à différents aliments inertes après achèvement de la métamorphose

A comparative test of various inert diets was performed on 9 batches of 150 one momth old soles, wheighing an average 43 mg, and feeding on live brine shrimps. It lasted for 2 months, in 60 l square tanks, with sand bottoms : A succession of frosen natural feed ending with the Bivalve Laevicardium crassum, was compared to 2 different artificial diets, offered as dry pellets. The inurement to the pellets was facilitated by an incorporation of various meals, used as flavourings, during a 6 weeks transitory period. At the end of the experiment, the best result, 98% survival, average weight 1.10 g, was obtained with the natural feed. The best flavourings for dry pellets were laevicardium arassum and the Polychaete Nephthys hombergii, with 70% survival and 0.99g for the first one, 53% survival and 1.10g for second one. The possible reproduction of these results on a large scale is not yet demonstrated.