Kandungan Nutrisi Kasgot Larva Lalat Tentara Hitam (Hermetia Illucens) pada Berbagai Media Pemeliharaan Feses Ternak Sebagai Sumber Pupuk Organik Hijuan Pakan

Abstract

Casgot (maggot residue) is a by-product of the bioconversion process of organic matter by BSF larvae (Hermetia illucens), which has great potential as an organic fertilizer. Maggot larvae are known to be able to grow in various organic media, including livestock waste, and contain high nutrients such as protein and fat. This study aims to test the nutritional content of kasgot derived from various livestock feces in maggot living media as a source of organic fertilizer for green fodder. The study was conducted from December 2024 to March 2025 at the Animal Production Laboratory, Faculty of Agriculture, University of North Sumatra. The research design used a Completely Randomized Design (CRD) with four treatments and three replications, namely P1 (kasgot derived from dairy goat feces media), P2 (kasgot derived from meat sheep feces media), P3 (kasgot derived from meat cattle feces media), and P4 (kasgot derived from laying hen feces media). The parameters observed included total nitrogen (N), phosphorus (P), potassium (K), organic carbon (c-organic), and C/N ratio. The results of the analysis showed that the cassava from various livestock feces in the BSF maggot living medium had a very significant effect (P<0.01) on the nitrogen, phosphorus, and potassium content and had a significant effect (P<0.05) on the C/N ratio. However, there was no significant effect (P>0.05) on the organic c content. Based on the results of this study, the best treatment was obtained, namely P2 (cassava from meat sheep feces media) which showed the highest nutrient content, could increase the nutrient content in the soil and was able to meet the Indonesian national standard (SNI). BSF has a distinct nutrient content that is sufficient to be used as a solid organic fertilizer that can improve soil fertility and plant growth