Constituyentes minerales del Morocoto Piaractus Brachypomus en el Orinoco Medio de Venezuela.

Abstract

An analysis of the concentrations of some mineral as potassium, sodium, calcium, magnesium and iron wasmade in the muscular tissue of the morocoto Piaractus brachypomus from the middle Orinoco River inVenezuela, captured in some flood lagoons with gillnet. The concentration of these minerals was analyzed byAtomic Absorption with flame of airacetyleneand correction of deuterium, using a team Perkin Elmer 3100coupled with an autosampler PerkinElmerACE51.An average of 45.32 ± 0.52 μg/g was determined in the ironconcentration, 3497.48 ± 107.06 μg/g in the concentration of calcium, 1528.95 ± 29.25 μg/g in theconcentration of magnesium, 3529.66 ± 65.24 μg/g in the concentration of sodium and 16488.90 ± 264.69 μg/gin the concentration of potassium. A variance analysis (ANOVA) and Duncan test later, demonstrated that theseconcentrations presented significant differences, with a bigger concentration of potassium, followed by thesodium and the calcium, and then the magnesium and the iron. Among these minerals the concentrations ofcalcium and potassium presented correlation statistically significant. The results constitute a contribution to theknowledge of the chemical composition of P. brachypomus, one of the freshwater fish most important in thecountry from the commercial point of view and in the aquaculture.