Análise técnica para ampliação de piscicultura no município de Dourados – MS

Abstract

This work aimed to carry out a technical evaluation for the expansion of a fish farm located in the city of Dourados - MS, based on the characteristics of the soil, design the nurseries and define the material costs involved in the construction. The water quality parameters evaluated were: temperature, pH, alkalinity, hardness and dissolved oxygen. In order to analyze the granulometry and soil pH, samples were taken from the two possible sites to be built, where analyzes were carried out containing information on granulometric composition: sand, silt and clay (g/Kg) and pH. The particle size and pH data were subjected to analysis of variance (ANOVA). Means were compared by Tukey test, at 5% probability. As for the results, the particle size differed statistically between the soil samples collected, including those collected at site 1 (p < 0.05). Clay was the most common particle found in parcel 2 of site 1, while silt was more pronounced in parcel 1 of site 1 and in site 2. As for the parameters on soil pH, it is observed that the results had no statistical difference between them at site 1 (p > 0.05). Based on the soil analyses, location 1 was chosen for the expansion of the property, since it has part of the area with a higher clay content and the soil pH is higher. Research on soil granulometry and textural class is important, as it provides an idea of particle size distribution and indicates the behavior of soil physical properties. However, the construction of nurseries represents a major investment for fish farming, in this sense it is important to emphasize that there is still little technical and economic information that can help in planning and the consequent growth of the activity.