The Use of a Solution of Superoxidized Water: The Effect of Electro Oxidized Water on the Viability of Eggs and Larvae of the White Shrimp (Litopenaeus Vannamei).

The toxic effect of EOW on eggs of the white shrimp (Litopenaeus vannamei ) was studied. Gravid healthy females (n= 20) of White shrimps were netted, and transferred to 50 liters holding tanks with low aeration for spawning. With the use of filters, 500 eggs were selected at random for each treatment. Group 1 was considered as control with no treatment. Group 2 was disinfected using iodine-PVP (50-100 ppm/10-60 sec) before rinsing again with abundant clean seawater in another recipient. To group 3, 50 mL of EOW diluted 1 : 50 was added to their holding tank. To group 4, 50 mL of EOW diluted 1: 100 was added to their holding tank. Group 5 received 50 mL of a dilution of 1:200 of EOW to their holding tank. Eggs hatching in the control group was in the order of 86%, and when eggs were treated with iodine-PVP percentage of survival was on the order of 91%. In the holding tanks where eggs were treaed with EOW in different solutions it was observed that hatching was >98% (P>0.01). In this work it was concluded that EOW was effective as first choice treatment for eggs of the White shrimp when used in different concentrations without producing a deleterious effect on hatchability, results that show that EOW should be considered as important sanitizer and disinfectant for this purpose.