Influência de parâmetros físico-químicos (temperatura, oxigênio dissolvido, pH e transparência), no crescimento da Tilápia (Oreochromis mossambicus) cultivada na AQUACQUEL – Inhangome

Abstract

This study analyzed the physicochemical parameters at the AQUACQUEL farm in Inhangome, aiming to evaluate the water quality used in tilapia farming. The work consisted of studying the influence of the tide on parameter variation, analyzing the level of relationship between the parameters, verifying if the parameters are within the optimal range, and establishing the relationship between tilapia weight and length. A multiparameter meter (HANNA – HI 9811-5) was used to measure temperature, pH, and dissolved oxygen, and a Secchi disk was used to control transparency. Tables were created and graphs plotted in Microsoft Office Excel. Biometric measurements were taken each weekend to monitor growth and feed intake. The results showed that the water used in tilapia farming at that farm has good quality because the physicochemical parameters measured during the study were within the optimal range, and the tidal influx into the tanks did not significantly influence the variation of the physicochemical parameters. It was concluded that temperature and dissolved oxygen were the parameters that most influenced the development of tilapia (Oreochromis mossambicus), and that tilapia weight and length had a very strong relationship.