The Influence of Different Stocking Densities on Biochemical Composition of Rainbow Trout Meat Reared in a Recirculating Aquaculture System
Keywords:
meat biochemical composition, rainbow trout, recirculating aquaculture system, stocking densitiesAbstract
The aim of this study is to evaluate the biochemical composition of rainbow trout meat, reared in a recirculating aquaculture system, at different stocking densities (DS1-2.64 kg/m3, DS2-5.16 kg/m3, DS3-7.12 kg/m3, DS4-9.42 kg/m3). The analyses were performed in the research laboratory of Aquaculture, Environmental Science and Cadastre Department–Faculty of Food Science and Engineering, from ,,Dunarea de Jos’’University of Galati. The content of meat proteins, fats, dry substance and ash was determined. After a 33 days experimental trial, the biochemical analysis of meat from all four experimental variants shows that protein content was higher in DS1 and DS4 variants, while the smallest amount of fats was quantified at DS1 and DS2 variants, without significant differences (p>0.05) for none of the biochemical compounds analyzed, at the mean comparison on experimental variants. Thus, it can be concluded that biochemical composition of rainbow trout meat was not influenced by the tested stocking densities.
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