Effects of Feeding Mixed Tofu Dregs and Fish Waste with Different Compositions on the Growth of Black Soldier Fly (Hermetia illucens) Larvae at Different Feeding Times 1Ida Kinasih, 2Ramadhani Eka Putra, 2Luh Wayan Ari Sawitri
1Department of Biology, Faculty of Science and Technology, Universitas Islam Negeri Sunan Gunung Djati Bandung
2School of Life Sciences and Technology, Institut Teknologi Bandung
Abstract
Organic waste generated from household waste, market waste and industrial waste is one of the problems faced by Indonesia. One thing that can be done to reduce organic waste is by applying the bioconversion concept using black soldier fly (Hermetia illucens) larvae which have the potential to for organic waste as much as 34-54% into protein and fat in the body^s biomass which can be of economic value as feed such as fish feed. In application, there are several challenges related to the use of insects as bioconversion agents including (1) the effect of feeding in the form of a mixture of organic waste and (2) the effect of feeding time. These two challenges are the objectives of this research. In the study, to answer the first question, black soldier fly larvae were fed a mixture of tofu dregs and fish waste with a different mixture ratio, namely a mixture of tofu dregs (AT) and fish waste (LI) 40% : 60%, 50% : 50%, and 60% : 40%. The feed was given with a different feeding time pattern, to answer the second question, namely every day, every three days, every five days, every ten days and every twenty days. The variables observed were weight gain and survival rate. The results showed a significant difference between feed composition and variation in feeding time on the growth of black soldier fly larvae. The best combination to produce the largest larval biomass is a feed composition of 40% LI: 60% AT with a feeding time of 5 days.
Keywords: Biomass, composition, feeding time, fish waste, Hermetia illucens, tofu dregs
Topic: Symposium on Energy and Environmental Science and Engineering
