THE EFFECT OF PRETREATMENT IN THE PROCESS OF CONVERSION OF COW BLOOD WASTE BY BLACK SOLDIER FLY LARVA (HERMETIA ILLUCENS) ON WASTE REDUCTION INDEX, SURVIVAL RATE, AND EFFICIENCY OF CONVERSION OF DIGESTED FOOD

• Main Author: Rafli Nurmin Said, Muhammad
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/77974
• Institution: Institut Teknologi Bandung

Black Soldier Fly (BSF) larvae have the ability to break down various wastes, one of which is blood. However, the liquid nature of blood means that the larval mortality rate is high and waste reduction is not optimal. This research aims to determine the effect of heating and mixing pretreatment of bovine blood on waste reduction performance and growth of BSF larvae. In this study, treatments were used consisting of liquid blood, solid blood (heated), liquid blood mixed with cabbage waste (1:1), solid blood mixed with cabbage waste (1:1), and control feed in the form of chicken feed. The experimental results showed that the best larval growth occurred when feeding liquid blood waste mixed with cabbage waste with an optimal weight ranging from 0.170 gr – 0.198 gr/lava. The highest Waste Reduction Index (WRI) value was shown in feeding solid blood mixed with cabbage (1:1) with a value of 3.74% and the highest Efficiency of Conversion of Digested Food (ECD) was found in feeding liquid blood mixed with cabbage (1:1 ) with a value of 18.2%. This study also tested the content of heavy metals Pb and Cd in larvae which may have been accumulated from blood waste. The measurement results showed that 5 - 8% of the Pb content and 0.14 - 3% of the Cd content in blood waste was transferred to BSF larvae.