Effects of temperature on growth performance and water quality in culture system of butter catfish (Ompok bimaculatus)

Abstract

To evaluate water quality and growth performance of butter catfish under temperature manipulation, 15 fish were cultured in 16 fiberglass tanks for ten weeks in three temperatures of 29 °C, 31 °C, 33 °C, and in ambient temperature as control (25.1-29.5 °C). The growth performance and water quality parameters (temperature, DO, pH, TAN and NO2-N) in culture were investigated. Water quality seemed not to be controlled by temperature but by feed consumption. DO concentration decreased (8.27+0.10 mg/l) in the 33 °C tank (P0.05). Results reveal that the maximum thermal tolerance for growth is best in water temperature which does not exceed 31 °C.

Keywords

• butter catfish
• water quality
• growth performance
• water temperature