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Table 1 Ingredients and proximate composition of the experimental diets and BSF larva meal

From: Dietary inclusion of a partially defatted black soldier fly (Hermetia illucens) larva meal in low fishmeal-based diets for rainbow trout (Oncorhynchus mykiss)

  BSF BSF0 BSF3 BSF6 BSF9 BSF12 BSF15
Ingredients, %
 Fishmeala   20.0 18.0 16.0 14.0 12.0 10.0
Hermetia illucens larva mealb   3.0 6.0 9.0 12.0 15.0
 Wheat gluten   13.0 13.0 13.0 13.0 13.0 13.0
 Soybean meal   20.0 20.0 20.0 20.0 20.0 20.0
 Swine haemoglobin   9.2 9.0 8.8 8.6 8.4 8.2
 Wheat starch   23.4 22.6 21.8 21.0 20.2 19.4
 Fish oil   7.0 7.0 7.0 7.0 7.0 7.0
 Soybean oil   7.0 7.0 7.0 7.0 7.0 7.0
 Mineralsc   0.25 0.25 0.25 0.25 0.25 0.25
 Vitaminsd   0.20 0.20 0.20 0.20 0.20 0.20
Chemical composition e
 Dry matter, g/100 g 94.0 97.2 97.2 96.9 96.8 96.9 96.6
 Ash, g/100 g as fed 10.2 5.8 5.9 5.8 5.7 5.5 5.5
 Crude protein, g/100 g as fed 56.9 45.6 46.1 45.6 46.0 45.7 46.1
 Ether extract, g/100 g as fed 7.0 14.9 15.9 15.8 15.7 14.6 14.3
 Gross energy, MJ/kg as fed 20.2 22.4 22.7 22.6 22.7 22.7 22.6
 Chitin, g/100 g 6.3 0.18 0.37 0.56 0.75 0.93
  1. Abbreviations: BSF Hermetia illucens. a Purchased from Skretting Italia S.p.A. (Località Vignetto, 17-37060 Mozzecane VR, Italy). Proximate composition (g/100 g, as fed): DM 91.0, CP 67.6, EE 8.3, Ash 16.4. b Provided by MUTATEC (Caumont-sur-Durance, France). c Mineral mixture (g/kg or mg/kg diet): dicalcium phosphate, 500 g; calcium carbonate, 215 g; sodium salt, 40 g; potassium chloride, 90 g; magnesium chloride, 124 g; magnesium carbonate, 124 g; iron sulphate, 20 g; zinc sulphate, 4 g; copper sulphate, 3 g; potassium iodide, 4 mg; cobalt sulphate, 20 mg; manganese sulphate, 3 g; sodium fluoride, 1 g (purchased from Granda Zootecnici S.r.l., Cuneo, Italy). d Vitamin mixture (IU/kg or mg/kg diet): DL-α-tocopherol acetate, 60 IU; sodium menadione bisulphate, 5 mg; retinyl acetate, 15,000 IU; DL-cholecalciferol, 3000 IU; Stay C Roche (vitamin C), 90 mg; thiamin, 15 mg; riboflavin, 30 mg; pyridoxine, 15 mg; vitamin B12, 0.05 mg; nicotinic acid, 175 mg; folic acid, 500 mg; inositol, 1000 mg; biotin, 2.5 mg; calcium panthotenate, 50 mg (purchased from Granda Zootecnici S.r.l., Cuneo, Italy). e Values are reported as mean of duplicate analyses