Artêmia franciscana - otimização da taxa de eclosão por solução de hipoclorito ou água salinizada

Abstract

The objective of this work was to evaluate the feasibility and decapsulation of brine shrimp against two different solutions, one of hypochlorite and the second of NaCl. Hatch rate was calculated for all treatments. The trial was analyzed in a completely randomized design in a 4x3 factorial scheme, four treatments and three replications. Survival was calculated for each treatment. The control group had a 19% hatch rate, in general, all decapsulation times had a higher hatch rate regardless of the exposure time. In the brine shrimp cysts submitted to the hypochlorite solution, it was observed that the exposure time fits a linear equation, showing that the longer the exposure time, the higher the hatching rate, this happened in a similar way for the treatment with NaCl. It is concluded that hypochlorite solutions can be used as a decapsulant for brine shrimp. The exposure time of artemia cysts is correlated with the solution. Based on the results of this study, the use of hypochlorite with an exposure time of 30-45 minutes of exposure of the brine shrimp is recommended. In both solutions the cysts showed high survival rates, this result shows that the use of hypochlorite can demonstrate a good hatch rate.