Ongrowing and lipid composition of senegalese sole Solea senegalensis fed with commercial and plant-based diets
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AuthorsLinares, F. (Fátima); Rodríguez-Villanueva, J.L. (José Luis); Peleteiro-Alonso, J.B. (José Benito); Álvarez-Blázquez, B. (Blanca); Pazos, G. (Gema); González, A.; Otero, M.; Valente, L. (Luísa)
The growth performance and flesh quality of Senegalese sole (Solea senegalensis) fed two practical diets, in which 78% of marine-derived protein was replaced by plant protein ingredients (PP), was compared with those fed a commercial diet (control) from Skretting (57% protein, 18% lipids; dry matter basis). All tested diets were isonitrogenous, but PP diets contained two lipid levels: 9% (PP-9) and 18% (PP-18). PP diets were produced by Sparos S.L. The experiment was conducted in a closed circuit system at the experimental facilities of IGAFA (heated seawater:1930 ).Triplicate groups of 30 pig-tagged fish, born in captivity, with an average weight of 64,09and size16,42were distributed by 9 tanks of 1m2 and fed the experimental diets during 5 months. Analyses of total lipids were carried out. The results were compared by a Studentt-test and one-way ANOVA . By the end of the trial the growth performance of the fish varied significantly among dietary treatments. Fish fed with PP-9 grew ...