The Effect of Aqueous Cattapa Leaf Extract on the Treatment of Gouramy Juvenile (Osphronemus goramy) Infected with Saprolegnia Sp.

Abstract

Gouramy cultivation has obstacles in its development, one of which is disease. Disease attack in fish farming activities is a serious obstacle. The purpose of this research was to determine the effect of cattapa leaf solution (Terminalia goramy) on the treatment of juvenile gouramy (Osphronemus goramy) infected with the fungal pathogen Saprolegnia sp. This study used a completely randomized design method with 5 treatments and 3 replications. The treatments given consisted of treatment A (control, without cattapa leaf solution), while treatment B, C, D and E were 500 ppm, 1000 ppm, 1500 ppm and 2000 ppm consecutively. The parameters observed were survival rate of gouramy, scale of fungal growth intensity (scaled from 1 to 5) and water quality. The scale of fungal growth and administration of cattapa leaf solution with different doses did not significantly affect the survival of gouramy (p > 0.05). However, the highest survival rate of gouramy was found in treatment B (500 ppm) which was 59% + 38.31 and the lowest was found in treatment E (2000 ppm) at 21% + 4.61. In-crease of gouramy leaves concentration was thought to cause stress of fish hence response to feeding was lower affecting the survival rate. Infections of Saprolegnia were still found from fish in all treatments although treated with cattapa leaf solution. In treatment D (1500 ppm), T. cattapa had a slight effect in the reduction of Saprolegnia found on the body of fish where decrease in the scale of fungal growth was found in several fish. Water quality parameters in this study such as temperature, pH, DO and ammonia were still in a suitable con-dition for the maintenance of gouramy juvenile.