biostudies-literatureAbdallah HH2020 AQUAEXCEL3.02661https://www.ebi.ac.uk/biostudies/studies/S-EPMC12466574biostudies-literatureUnknown15(18)This study focused on the effects of including a mixture of <i>Hermetia illucens</i> (HI) and <i>Tenebrio molitor</i> (TM) meals on feed colour, growth performance, carcass yield, somatic indexes, nutrient digestibility, intestinal microbiota, histomorphometry, and fillet quality of rainbow trout (<i>Oncorhynchus mykiss</i>). Seven diets were formulated: one control diet (CTRL) containing 15% fishmeal, two diets where the fishmeal was replaced with 100% HI (HI100) or TM (TM100) meal, and four diets containing increasing levels of a mix (1:1) of HI and TM meals, replacing 25% (MIX25), 50% (MIX50), 75% (MIX75) and 100% (MIX100) of the fishmeal. A total of 378 fish (average weight: 126 ± 1.71 g (g)) were randomly distributed in 21 experimental tanks (3 replicates/treatment and 18 fish/replicaAnimals : an open access journal from MDPIInsect Meal Mixture as Sustainable Fishmeal Substitute in Rainbow Trout (<i>Oncorhynchus mykiss</i>) Diets.PMC1246657423116Ferrocino ISalvatico JPCapucchio MTTrespeuch CBrugiapaglia ABiasato IBellezza Oddon SGasco LAbdallah HCrepieux SLoiotine ZMalik MIAzaza MSBagatella SfalseInsect Meal Mixture as Sustainable Fishmeal Substitute in Rainbow Trout (<i>Oncorhynchus mykiss</i>) Diets.This study focused on the effects of including a mixture of <i>Hermetia illucens</i> (HI) and <i>Tenebrio molitor</i> (TM) meals on feed colour, growth performance, carcass yield, somatic indexes, nutrient digestibility, intestinal microbiota, histomorphometry, and fillet quality of rainbow trout (<i>Oncorhynchus mykiss</i>). Seven diets were formulated: one control diet (CTRL) containing 15% fishmeal, two diets where the fishmeal was replaced with 100% HI (HI100) or TM (TM100) meal, and four diets containing increasing levels of a mix (1:1) of HI and TM meals, replacing 25% (MIX25), 50% (MIX50), 75% (MIX75) and 100% (MIX100) of the fishmeal. A total of 378 fish (average weight: 126 ± 1.71 g (g)) were randomly distributed in 21 experimental tanks (3 replicates/treatment and 18 fish/replica2025-01-01T00:00:00Z2025 Sep2026-05-02T03:15:42.064Z2026-05-02T03:09:26.923ZS-EPMC124665744100790710.3390/ani15182661