Pemanfaatan Limbah Ampas Fermentasi dan Ampas Kecap sebagai Pakan Alternatif serta Dampaknya terhadap Kualitas Air Kolam

Amelia Novita Kartikasari; Novirina Hendrasarie

Authors

Amelia Novita Kartikasari Universitas Pembangunan Nasional “Veteran” Jawa Timur Author
Novirina Hendrasarie Universitas Pembangunan Nasional “Veteran” Jawa Timur Author

Keywords:

pakan alternatif, ampas kecap, kualitas air, pertumbuhan ikan

Abstract

This study aims to utilize fermented residue and soy sauce by-products from soy sauce production as raw materials for alternative fish feed, as well as to evaluate their effects on fish growth and water quality in aquaculture ponds. The feed formulation consisted of soybean waste (25%), rejected powdered milk (5%, 7.5%, and 10%), fine bran (18%), EM4 (2%), molasses (5%), tapioca flour (10%), fish meal (20%), and sufficient water. The study was conducted using three treatment variations based on the percentage of rejected powdered milk. Observed parameters included fish weight gain and water quality, covering temperature, pH, and TDS. The results showed that the alternative feed made from soy sauce production waste supported fish growth, particularly the formulation containing soy sauce residue and fermented residue with 5% rejected powdered milk. Overall, the pond water quality remained within the acceptable range for fish farming, although fluctuations in pH and temperature were observed towards the end of the study. Therefore, fermented residue and soy sauce by-products have the potential to be a sustainable, cost-effective, and environmentally friendly fish feed solution.

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