Evaluación de diferentes dosis de óxido de calcio en la carga bacteriana de aguas de piscina camaronera.

Abstract

In aquaculture, the processes of desintection is very important to minimize the load of pathogens present in the water. For this purpose, calcium-based products are usually used in aquaculture farms. There are different types of calcium, including calcium hydroxide and calcium oxide, which are the most used in disinfection processes. This work attempts to evaluate the different doses of calcium oxide by plating to reduce the bacterial load in shrimp pond waters. For this, three doses of the commercial product were evaluated to determine the decrease of the bacteria load, the impact on the physical and chemical parameters of the water and the effects on natural productivity. After evaluating the three treatments, it was determined that treatment 3 (250 μl/L) reduced the amount of Vibrios and heterotrophic bacteria. Also, this treatment was significant different to the control by reducing natural productivity by 91.11%. At the same time, this product did not affect any physical and chemical parameters of the water. Finally, the use of this product after 7 hours had a bacteriostatic effect on Vibrio and heterotrophic bacteria, as well as natural productivity.