Calidad de los quistes de Artemia persimilis (Piccinelli and Prosdocimi) (Crustacea: Branchiopoda) de diferentes zonas de Argentina, como alimento en acuicultura

Abstract

The cysts quality of Artemia persimilis (Piccinelli & Prosdocimi 1968) from the salines of the provinces of Buenos Aires, La Pampa and Cordoba, was evaluated. Eggs size, number of cysts per gram, nauplius size, hatching percentages, hatching rate, synchrony time (Ts) after the treatment with H2O2 and analysis of the nutritional quality the cysts regarding protein, total lipids, fatty acids, ash and moisture were determined. The results were satisfactory, with hatching percentages va rying, in general, from 60% to 80% and with Ts that didn't overcome 7.5 h. The average diameter with the standard deviation of the hydrated cysts, were between 184.7 ± 26.29 μm (Salina El Chancho) and 248.6 ± 17.29 μm (Salina Colorada Grande). The number of cysts per gram varied from 102,600 (Salinas Grandes de Anzoátegui) to 276,000 (Salinas Grandes de Hidalgo). The average size, with the standard deviation of the nauplius, varied from 350.6 ± 36.01 μm (Salina El Chancho) to 512.1 ± 63.44 μm (Salina Colorada Grande). The cyst treatment with H2O2 reduced the time of synchrony. With regard to the nutritional quality, the values obtained can be compared to the ones presently traded. It can be affirmed that the cysts of Artemia persimilis could be used as food in aquaculture.