Dietary inclusion of mealworm frass: Effect on blood metabolites and growth performance of Gabaly rabbits

Journal of Agriculture and Food Research, Год журнала: 2025, Номер unknown, С. 101637 - 101637

Опубликована: Янв. 1, 2025

Язык: Английский

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Application of Mealworm Frass in Organic Seedling Production of Allium cepa L., Beta vulgaris L., and Brassica rapa L.

Seeds, Год журнала: 2025, Номер 4(1), С. 4 - 4

Опубликована: Янв. 8, 2025

Horticulture is mainly based on transplanting seedlings produced by specialized nurseries. The recent European authorization of frass in organic farming presents new opportunities for the development seedling production. Frass, a by-product insect farming, offers innovative solutions this sector. It consists excrement, exuviae, and uningested feed. Their fertilizing biostimulating effects have been demonstrated various pot field crops experiments. However, current knowledge regarding application production remains insufficient. This study aims to assess optimal dose mealworm germination substrates Allium cepa L., Beta vulgaris Brassica rapa L. Germination phytotoxicity tests were carried out, with evaluated one month after sowing containing at concentrations 0.5%, 1%, 2%, 3% frass. test revealed that dilution 1:100 phytostimulant effect A. moderate phytotoxic B. rapa. concentration 0.5–1% was generally most effective dose, although all doses substrate resulted whose root length, leaf number leaves, biomass significantly higher than control. In conclusion, low promising allows management potential phytotoxicity.

Язык: Английский

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Development of alternative feed with seed and insect meal for sustainable production of rainbow trout (Oncorhynchus mykiss) and quality fillets

JSFA reports, Год журнала: 2025, Номер unknown

Опубликована: Апрель 23, 2025

Abstract Background Rainbow trout ( Oncorhynchus mykiss ) is a freshwater fish with an aquaculture industry widely distributed throughout the world, whose diet based on meal (marine origin), serious sustainability problems associated sector. The objective of study was inclusion other flours as protein source (insect and vegetable) to replace conventional for O. hatchlings. Feed different contents (35%, 40%, 45%) used, therefore, insect content 38%, 45%, 53%, respectively, in order maintain isoenergetic balance. quality analysis feed used proximal amino acid meals. For evaluation alternative feed, 150 O . fry were 90 days, considering increase size (standard length) weight every 15 days. intake 8% animal biomass, rationed four times day. In analyze fillets, 20 fed each kept further 60 Results substitution by vegetable allowed biochemical profile that contains hatchlings be met. It shown that, during first 6 weeks, all feeds resulted similar sizes weights pups. However, at end (at 3 months), reported larger than feeds. On hand, these differences growth did not impact fillet consumers. Conclusion development 75% ingredients (fishmeal, chilacayota, corn Tenebrio) 35%–45% protein, necessary grow produce fillet. showed reducing consumption favors production costs centers, mission keep them up 2 months offered fattening farms promote sustainable production.

Язык: Английский

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Insect farming: a bioeconomy-based opportunity to revalorize plastic wastes

Environmental Science and Ecotechnology, Год журнала: 2024, Номер 23, С. 100521 - 100521

Опубликована: Дек. 24, 2024

Managing plastic waste is one of the greatest challenges humanity faces in coming years. Current strategies-landfilling, incineration, and recycling-remain insufficient or pose significant environmental concerns, failing to address growing volume residues discharged into environment. Recently, increasing attention has focused on potential certain insect larvae species chew, consume, partially biodegrade synthetic polymers such as polystyrene polyethylene, offering novel biotechnological opportunities for management. However, insect-assisted depolymerization incomplete, leaving amounts microplastics frass (or manure), limiting its use a soil amendment. In this perspective, we propose two-step bioconversion system overcome these limitations, using insects sustainably manage while revalorizing by-products (frass). The first step involves pyrolyzing microplastic-containing from mealworms (Tenebrio molitor larvae) fed plastic-rich diets produce biochar with enhanced adsorptive properties. second stage integrates entomocomposting organic residues, food waste, black soldier fly (Hermetia illucens) nutrient-rich substrates enriched carbon nitrogen. This integrated offers framework large-scale industrial applications, contributing bioeconomy by addressing both residue We critically examine advantages limitations proposed based current literature technology entomocomposting. Key research are identified, particularly concerning physiological toxicological processes involved, guide future efforts aimed at ensuring scalability sustainability innovative approach.

Язык: Английский

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Sustainable approach to polystyrene management and bioinsecticide production: Biodegradation by Tenebrio molitor larvae co-fed with residual biomass and bioactivity of frass pyrolysis bio-oil against insect pests

Bioresource Technology, Год журнала: 2024, Номер unknown, С. 132005 - 132005

Опубликована: Дек. 1, 2024

Язык: Английский

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