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Revista Tecnología en Marcha
On-line version ISSN 0379-3982Print version ISSN 0379-3982
Abstract
CARVAJAL-OSES, María del Milagro; CAMPOS-RODRIGUEZ, Rooel and HERRERA-ULLOA, Ángel. Technical and economic feasibility of adding pure oxygen for rotifer production (Brachionus plicatilis) spotted snapper (Lutjanus guttatus) larvae feeding. Tecnología en Marcha [online]. 2016, vol.29, n.2, pp.14-24. ISSN 0379-3982. http://dx.doi.org/10.18845/tm.v29i2.2688.
A study to technically and economically evaluate the addition of pure oxygen in a culture of rotifers for feeding marine fish in the Pacific Marine Park, Puntarenas, Costa Rica was performed. The results showed no significant differences (ANOVA P> 0.05) between the cultivation with addition of oxygen treatment and control, regarding the instantaneous growth rate, crop yield, doubling time, rotifers length and maximum densities reached. Concerning the economic analysis, control culture was 53% less expensive compared to the addition of oxygen system.
Keywords : Brachionus plicatilis;Lutjanus guttatus; growth; fertility; yield; rotifers; marine culture.