Growth performances of black soldier fly larvae reared on the different ratio of fermented waste Akbar Aditya Trihendarsa1, Faizal Andri1, and Nurul Isnaini1,*
1Faculty of Animal Science, Universitas Brawijaya, Malang 65145, Indonesia
*Corresponding author: nurulisna[at]ub.ac.id
Abstract
Black soldier fly (BSF) is increasingly recognized as a vital component of circular economy systems, facilitating organic waste recycling while producing alternative protein feed for the livestock industry. This study aimed to evaluate the growth performances of BSF larvae reared on varying ratios of fermented waste consisted of fermented coconut dregs (FCD) and fermented rumen contents (FRC). Five treatments were tested, namely T0 (100% FCD), T1 (95% FCD + 5% FRC), T2 (90% FCD + 10% FRC), T3 (85% FCD + 15% FRC), and T4 (80% FCD + 20% FRC). Larval length, width, and mass were measured at 6, 11, and 16 days. Data were analyzed using one-way analysis of variance, with significance set at P < 0.05. Duncan Multiple Range Test was used to differentiate treatment effects. Results indicated that larvae reared on 100% FCD (T0) consistently exhibited the highest values for length, width, and mass across all time points (6, 11, and 16 days). A significant decline (P < 0.05) in growth parameters was observed as the proportion of FRC increased, with the lowest performance recorded in the T4 treatment (80% FCD + 20% FRC). In conclusion, 100% FCD is recommended as the optimal substrate for maximizing BSF larval growth.
