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Volume 39- Number 2 - 2004
Article


Quality of Artemia persimilis (Piccinelli & Prosdocimi) (Crustacea: Branchiopoda) cysts from different zones of Argentina as food in aquaculture

Natalia E. Sato1,4, Juan C. Mallo2,4 y Jorge L. Fenucci3,4

 

1) Departamento de Ciencias Marinas
(2) CIC (Comisión de Investigaciones Científicas, provincia de Buenos Aires). Departamento de Ciencias Marinas
(3) CONICET. Departamento de Ciencias Marinas
(4) Universidad Nacional de Mar del Plata. Funes 3250, 7600 Mar del Plata, Argentina

 

E-mail: nesato@mdp.edu.ar


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 varying, 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 


Key words: Crustacean, brine shrimp, nutrition, live food


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1Laboratorio de Zooplancton, Instituto de Ciencias del Mar y Limnología,Universidad Nacional Autónoma de México. A. P. 70-305, 04510 México, D. F. México
 
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