THE BIOCHEMICAL EVALUATION OF AQUACULTURE RAINBOW TROUT MEAT, IN CONDITION OF PROBITICS ADMINISTRATION

Mirela Mocanu (Creţu), V. Cristea, Lorena Dediu, Angela Docan, Săndiţa (Ion) Plăcintă, Alina Antache, M.T. Coadă

Abstract
The purpose of this experiment was the evaluation of biochemical composition of juvenile rainbow trout meat, in condition of BioPlus2B® probiotic administration (Bacillus licheniformis (DSM 5749) and Bacillus subtilis (DSM 5750), in proportion of 1:1) in feed, in different concentrations: V₁:22.4x10⁹, V₂:38.4x10⁹ and V₃: 70.4x10⁹ CFU g^-1. The analyses were performed in the research laboratory of Aquaculture, Environmental Science and Cadastre Department, Faculty of Food Science and Engineering, Galati and consist in various determinations that aim to evaluate the meat content in protein, lipids, dry matter and ash, for this species. At the end of the experiment it was found that introducing of probiotic BioPlus2B® in rainbow trout feed, increased the protein content in meat (from 13.86% to 16.89% in version V₁), decreased the lipids content (from 6.59% to 4.32% version V₁) and moisture (from 78.17 to 77.19% in version V₁). So, we can say that an optimal dose of probiotic can lead to meat nutritive quality improvement.

Key words: rainbow trout, biochemical composition, recirculating aquaculture system