Application of organic fertilizer made from solid waste from shrimp ponds for tilapia nursery (Oreochromis niloticus)
Abstract
The solid waste of super-intensive aquaculture ponds can be used as organic fertilizer. Organic fertilizers are useful in soil nutrient enrichment and improvement. The purpose of this study was to utilize the solid waste of super-intensive ponds as an organic fertilizer for the nursery of tilapia (Oreochromis niloticus). The treatments applied were: (A) organic fertilizer of solid waste of shrimp ponds with a dose of 0.1 kg/m2, (B) organic fertilizer of solid waste of shrimp ponds with a dose of 0.2 kg/m2, (C) organic fertilizer of solid waste of shrimp ponds with a dose of 0.3 kg/m2, (D) without organic fertilizer (control). The parameters observed were the growth of natural feed (plankton), tilapia’s growth and survival rate, and water quality. The growth and survival rate data were analyzed using oneway ANOVA, while water quality and natural feed data were analyzed descriptively. The result showed that the absolute growth of tilapia obtained during the study ranged from 0.1955-0.3158 g/ind with SGR 0.6517-1.0527%/day. The highest phytoplankton abundance in treatment A was 102858 ind/L, and zooplankton was 70354 ind/L. The study’s water quality supported tilapia’s growth and natural feed.
