Pemanfaatan Potensi Agroindustri Ampas Kedelai, Cascara Kopi dan Ampas Tebu sebagai Substrat terhadap Produktivitas dan Kandungan Nutrisi Larva Black Soldier Fly (Hermetia Illucens)

Abstract

Organic waste processing technology using the Black Fly Soldier insect (Hermetia illucens) has advantages such as low installation costs, environmental friendliness, high organic waste conversion rate, can be used as various types of organic waste and source of protein, can be run in tropical climates, low GHG emissions, and able to increase income for the community. The factorst affecting conversion of organic waste and the nutritional composition of the larvae is the feed which is a source of nutrition for the larvae. One type of waste that has the potential to be used as a feed medium for BSF larvae is agro-industrial waste, which has an excess value of high protein, fiber, and carbohydrates which are good for the growth of BSF larvae. This study aims to determine the effects of providing agricultural waste as feed on the growth of BSF larvae which is a proxy for the relative growth rate and rate of degradation of organic waste and to determine the effects of providing agricultural waste as feed on the nutritional content of BSF biomass. This experimental research employs a completely randomized design method. The independent variables in this study are the type of waste as a medium for larval growth while the dependent variables are the relative growth rate, waste reduction index, and nutritional content of BSF larvae. Analysis of the nutritional content of BSF is carried out at the BARISTAN (Laboratory of the Center for Standardization and Industrial Services) in Medan using the SNI 01-2891-1992 method, which consists of ash content, carbohydrates, total fat, protein, and crude fiber. Measurements of the weight, length, and thickness BSF larvae are carried out directly at the study site. The results show that a mixture of vegetable dregs and soybean dregs give the highest relative growth rate of 0.058 g/day. The P1 treatment in the form of a mixture of vegetable dregs and soybean dregs shows the highest Waste Reduction Index value of 3.02 %/day. and a high protein content in the feed media mixed with soybean dregs and vegetable waste results in the highest protein composition in BSF larvae at 12.2%. From the results of the study, a high-fat content in the feed media mixed with soybean dregs and coffee cascara results in the highest fat composition in BSF larvae at 3.69%.