Effect of substrate nutrient content level on nutritional expression of Hermetia illucens: a meta-analysis

Abstract

This research aims to examine the effect of substrate nutrient content on nutrient expression of Hermetia illucens by using a meta-analysis method The database was constructed from studies that have reported various substrates with nutrient levels in Hermetia illucens. The nutritional content observed in this study were dry matter (DM), ash, crude protein (CP), true protein (TP) and ether extract (EE). There were 12 articles that met the criteria entered in the database. Mixed model methodology was used for statistical analysis. The difference in study data on Hermetia illucens was used as a random effect, and nutrient substrate level was used as a fixed effect. The statistical model used is the p-value. If the significance of an effect occurs, the p-value <0.05. The results showed that the increase in ash, CP, and TP on the substrate had a significant effect on the increase in nutrient Hermetia illucens (P<0.05) and increasing DM substrate tends to increased DM on Hermetia illucens (P<0.1). Increased EE levels in the substrate did not affect EE levels in Hermetia illucens larvae (P>0.05). The conclusion of this study was that the increase in ash and CP levels on the substrate had an effect on increasing the nutrient content of ash, CP, and TP of Hermetia illucens larvae.