Formulation of Organic Wastes as Growth Media for Cultivation of Earthworm Nutrient-Rich Eisenia foetida

Abstract

Inadequate management of solid organic waste can lead to the spread of diseases and negatively affects the environment. Fermentation and vermicomposting of organic waste could have dual benefits by generating earthworm biomass for a source of animal feed protein, and, at the same time, turning the organic waste into readily used compost. This study investigated the effect of an organic waste source (as a sole source or blended with others) totaling 24 media for the cultivation of the earthworm Eisenia foetida. Eight media sources were applied, namely cow manure, horse manure, goat manure, broiler chicken manure, market organic waste, household organic waste, rice straw, and beef rumen content. E. foetida was cultivated for 40 days, then the number of cocoons, earthworms, and the total biomass weight were measured at the end of the cultivation. Results demonstrated that the media source affected E. foetida earthworm cultivation. The most effective media were those containing horse manure that led to the production of the highest earthworms and the highest biomass. The produced cocoons and earthworms were poorly correlated with an r-value of 0.26 and p-value of 0.21. Meanwhile, the number and weight of the earthworms correlated well with an r-value of 0.784 and p-value of <0.01. However, the average numbers and weights of the produced earthworms in the media containing horse manure, cow manure, goat manure, and non-blended organic waste were insignificant. Overall results suggest that blended organic wastes can undergo composting to produce nutrient-rich earthworm biomass while turning the solid organic waste into readily used compost.

A minireview on vermicompost and vermiwash as green pesticide for sustainable crop production: Approaches, applications, and advancements

“…Vermicomposting is the transformation of organic residues into simple, less complex, appropriate and harmless decomposed product where earthworm alter biological and domestic wastes into superior quality compost. 8 This process is a biotechnological extension of composting involving participation of diverse species of earthworms along with the natural microbial decomposition. In vermicomposting, organic matter is exposed to bacteria and enzymes of earthworm gut that alter the nutritive constituents and provide the unique consistency and property to vermicompost.…”

“…Vermicompost is a compost or the product of the decomposition of organic matter, specifically wastes, using earthworms. Vermicomposting is the transformation of organic residues into simple, less complex, appropriate and harmless decomposed product where earthworm alter biological and domestic wastes into superior quality compost 8 . This process is a biotechnological extension of composting involving participation of diverse species of earthworms along with the natural microbial decomposition.…”

Removal of organic matter during adaptation of Nannochloropsis oculata in livestock waste

“…Such an amount of OW has a significant impact on the emission of large amounts of methane, a result of the anaerobic fermentation process. Therefore, its safe management and disposal has become a global priority (Mashur et al, 2021;Xie et al, 2023). Currently, some OW, such as agricultural waste, industrial waste, municipal organic waste, sewage sludge, and livestock waste, are being used as potential sources for bioenergy production (Torky et al, 2023) and highvalue bioproducts (Dhanya et al, 2020;Ng et al, 2020).…”

The use of banana peel as feed to increase growth of earthworms (Lumbricus rubellus)

“…Earthworms are hermaphrodites where in the earthworm body, there are two sexes, namely male and female [1]. The earthworm species Lumbricus rubellus has a segmented body [2]. The body is bilaterally symmetrical, cylindrical, hairy, and has no exoskeleton.…”