The impact of diets containing Hermetia illucens meal on the growth, intestinal health, and microbiota of gilthead seabream (Sparus aurata)

Fish Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 50(3), P. 1003 - 1024

Published: Feb. 22, 2024

Abstract The present study investigated the effect of replacing fishmeal (FM) with insect meal Hermetia illucens (HI) in diet Sparus aurata farmed inshore on growth, gut health, and microbiota composition. Two isolipidic (18% as fed) isoproteic (42% diets were tested at farm scale: a control without HI an experimental 11% FM. At end 25-week feeding trial, final body weight, specific growth rate, feed conversion hepatosomatic index not affected by diet. Gross morphology gastrointestinal tract liver was unchanged showed no obvious signs inflammation. High-throughput sequencing 16S rRNA gene amplicons (MiSeq platform, Illumina) used to characterize microbial community profile that Proteobacteria, Fusobacteria, Firmicutes dominant phyla gilthead seabream, regardless Dietary inclusion altered significantly decreasing abundance Cetobacterium increasing relative Oceanobacillus Paenibacillus genera. Our results clearly indicate alternative animal protein source positively affects seabream beneficial genera, thereby improving health maintaining performance S. from coastal farms.

Language: Английский

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A metanalysis to evaluate the effects of substrate sources on the nutritional performance of black soldier fly larvae: implications for sustainable poultry feed

Poultry Science, Journal Year: 2023, Volume and Issue: 103(2), P. 103299 - 103299

Published: Nov. 18, 2023

This meta-analysis presents an evaluation of substrate sources and their impact on the growth performance black soldier fly (BSF) larva. The database, compiled from Google Scholar, PubMed, Science Direct, focuses data concerning sources, environmental conditions, parameters BSF. Seven types substrates were analyzed, including Feed Waste, Manure, Fruits, Mix, Animal Source, Fermentation Residue, Food Waste. Waste group demonstrated highest DM content, while CP content was found in Source group. Higher larva meal Residues diets, respectively. survival rates observed BSF larvae fed Residues, Manure compared to Vegetable substrates. Fresh larval weight lower when used as a feed than pre-pupal Wet Weight surpassing those Substrate exhibited positive relationship with fresh weight, prepupal wet dry weight; length, mortality until prepupal, protein conversion, conversion ratio, food consumption, reduction rate bioconversion waste index, efficiency digested In conclusion, our findings underline that source composition are correlated nutritional meal.

Language: Английский

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Nutritional Value of Black Soldier Fly Larvae Oil in Calf Milk Replacers

Journal of Dairy Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Sustainable alternatives to high environmental input feed ingredients are important reducing the impact of animal agriculture. Protein and oil extracted from cultivation black soldier fly (Hermetia illucens) larvae (BSFL) on waste feedstocks such as manure, food plant residues could be a suitable source nutrients. The BFSL contains large amounts saturated fatty acids, particularly lauric acid, may more sustainable alternative palm coconut oils that currently used in calf milk replacers many parts world. objective this study was evaluate performance neonatal calves fed (CMR) containing BSFL. Holstein heifer (n = 100) were assigned randomly at birth receive one 4 experimental 24% CP 18% fat blend 80/20 palm/coconut (B0), palm/BSFL (B20), 70/30 (B30), or 60/40 (B40). Calves up 900 g/d CMR powder reconstituted 15% solids daily d 55, then 600 63 300 end trial 70. Commercial starter, wheat straw, water available for ad libitum consumption. Intake, growth, fecal scores, efficiency monitored reported weekly. There no effects treatments efficiency. Consumption during first 2 weeks lower when B20 (wk 1 2) B30 2). generally healthy there indications refusal maldigestion. Probability non-normal event (fecal score > 0) 3 study. Oil BSFL an attractive replacers.

Language: Английский

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Sodium selenite enhanced the selenium content in black soldier fly

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 7, 2025

This study focuses on the effects of different levels sodium selenite growth, selenium content, and antioxidant capacity black soldier fly (Hermetia illucens). The experiment used doses for treatment, including a basic diet with no supplements (control) diets supplemented 10 mg/kg (Se10), 20 (Se20), 30 (Se30), 40 (Se40) selenite, results show that supplementation significantly increases content improves utilization (P < 0.05). However, it also negatively affects growth performance other nutrients. optimal level depends ration enrichment overall health productivity fly.

Language: Английский

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The hidden drivers: Unraveling the impact of density, moisture, and scale on Hermetia illucens rearing

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(1), P. e0317049 - e0317049

Published: Jan. 8, 2025

The black soldier fly ( Hermetia illucens ) is a saprophagous insect known for bioconverting organic waste, potentially offering environmental benefits, such as contributing to waste reduction and nutrient cycling. performance of larvae varies significantly with factors substrate moisture, larval density, scale production. Three experiments were conducted using mix spent mushroom (SMS) chicken feed (CF). In the first experiment, 250 reared on 100 g dry matter (DM) at moisture levels 65–75%. Results showed that average individual weight, total biomass, conversion ratio (FCR) improved increased moisture. second 300 350 larvae/box tested 70% 75% highest fresh weight (158.6 mg) was observed larvae, while biomass achieved larvae. Finally, different scales (10–2,500 25–6,500 larvae) similar feeding rate. recorded scale, no clear correlation between scale. However, 50 (33.2%). Overall, this study underscores need adjust efficiency when SMS, CF or other diets. optimal results SMS per DM, approximately 2 cm .

Language: Английский

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Neural Network for AI-Driven Prediction of Larval Protein Yield: Establishing the Protein Conversion Index (PCI) for Sustainable Insect Farming

Sustainability, Journal Year: 2025, Volume and Issue: 17(2), P. 652 - 652

Published: Jan. 16, 2025

The predictive capabilities of artificial intelligence for predicting protein yield from larval biomass present valuable advancements sustainable insect farming, an increasingly relevant alternative source. This study develops a neural network model to predict conversion efficiency based on the nutritional composition feed. utilizes structured two-layer with four neurons in each hidden layer and one output neuron, employing logistic sigmoid functions layers linear function layer. Training is performed via Bayesian regularization backpropagation minimize mean squared error, resulting high regression coefficient (R = 0.9973) low mean-squared error (MSE 0.0072401), confirming precision estimating yields. AI-driven approach serves as robust tool yields, enhancing resource promoting sustainability insect-based production.

Language: Английский

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Hermetia illucens (Diptera: Stratiomyidae): Need, Potentiality, and Performance Measures

Agriculture, Journal Year: 2023, Volume and Issue: 14(1), P. 8 - 8

Published: Dec. 20, 2023

The research on black soldier fly (BSF; Hermetia illucens L.; Diptera: Stratiomyidae) rearing is the rise. larval ability to grow organic substances makes it an ideal candidate for bioconversion of agricultural and other side streams. While there are several publications variables influencing growth development different stages BSF, juxtaposing results could be amiss. This because experimental approaches units used by researchers. A few also lack information that might necessary comparing when using similar substrate conditions. In this review, we have analyzed studies such as type feeding substrate, depth aeration, temperature, moisture, pH, rate, density mainly, but not exclusively, larvae. For adults, factors cage size, density, light, ambient relative humidity considered. addition, performance fed with streams encapsulated. provides a backbone future researchers identify already assessed along their range encourages them define use standardized practices better comparison results.

Language: Английский

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Application of the Hydrodeoxygenation of Black Soldier Fly Larvae Lipids in Green Diesel Production

Sustainability, Journal Year: 2024, Volume and Issue: 16(2), P. 584 - 584

Published: Jan. 9, 2024

To produce green diesel from black soldier fly larvae (BSFL; Hermetia illucens), the maximization of lipids in production and hydrodeoxygenation (HDO) reactions was investigated. In this study, BSFL were fed 12 diets based on three different substrates (ground corn, food waste, meat by-product). The proximate compositions analyzed, rearing time, rate, feeding mixture prices also recorded. maximize lipid yield, effects growing temperature, drying method, extraction temperature HDO reaction oil with 1 wt % Pt/Al2O3 catalyst carried out a trickle bed reactor. components produced under optimal conditions through compositionally analyzed. As result being ground by-products, it confirmed that diet 30% corn 70% by-product led to highest content BSFL. After considering diets, we found most ideal could be applied actual insect farming waste by-products. From perspective period, appropriate BSFL-rearing medium 38 °C. harvesting BSFL, yield improved when extracted at 65–75 °C after using microwave. analysis results showed carbon distribution hydrodeoxygenated offered an advantage used as drop-in fuel, represents promising future step for lipids.

Language: Английский

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Promising concepts to increase the competitiveness of the insect business in Central Europe

Environment Development and Sustainability, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

Language: Английский

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