Table 3 Ingredients composition and proximate analysis of experimental diets.

Diets^a	CTR	SBM	RSM	SFM
Ingredients (% dry weight)
Fish meal^b	60.2	38.7	45.2	48.1
Soy bean meal^c	─	30.0	─	─
Rapeseed meal^d	─	─	30.0	─
Sunflower meal^e	─	─	─	30.0
Pregelatinized maize starch^f	23.2	11.6	8.0	4.8
Fish oil	12.1	13.6	12.4	13.0
Bicalcium phosphate^g	1.0	2.6	1.0	0.6
Choline chloride (50%)	0.5	0.5	0.5	0.5
Vitamin premix^h	1.0	1.0	1.0	1.0
Mineral premixⁱ	1.0	1.0	1.0	1.0
Binder^j	1.0	1.0	1.0	1.0
Proximate analysis (% dry weight)
Dry matter	91.5	92.4	92.7	93.5
Crude protein	46.9	46.5	46.3	46.4
Crude lipids	17.3	16.1	16.6	16.8
Ash	11.3	11.7	11.3	11.1

DM dry matter, CP crude protein, CL crude lipid.
^aCTR, control fishmeal based diet; SBM, soybean meal based diet; RSM, rapeseed meal based diet; SFM, sunflower meal based diet.
^bSteam Dried LT fish meal, Pesquera Diamante, Austral Group, S.A Perú (CP: 74.7% DM; GL: 9.8% DM).
^cSorgal, S.A. Ovar, Portugal (CP: 53.7% DM; GL: 2.1% DM).
^dSorgal, S.A. Ovar, Portugal (CP: 37.5% DM; GL: 4.0% DM).
^eSorgal, S.A. Ovar, Portugal (CP: 30.3% DM; GL: 1.0% DM).
^fC-Gel Instant-12016, Cerestar, Mechelen, Belgium.
^gPremix, Portugal (Calcium: 24%; Total phosphorus: 18%).
^hVitamins (mg kg⁻¹ diet): retinol acetate, 18,000 (IU kg⁻¹ diet); cholecalciferol, 2000 (IU kg⁻¹ diet); alfa tocopherol acetate, 35; sodium menadione bisulphate, 10; thiamine-HCl, 15; riboflavin, 25; calcium pantothenate, 50; nicotinic acid, 200; pyridoxine HCl, 5; folic acid, 10; cyanocobalamin, 0.02; biotin, 1.5; ascorbic acid, 50; inositol, 400.
ⁱMinerals (mg kg⁻¹ diet): cobalt sulphate, 1.91; copper sulphate, 19.6; iron sulphate, 200; sodium fluoride, 2.21; potassium iodide, 078; magnesium oxide, 830; manganese oxide, 26; sodium selenite, 0.66; zinc oxide, 37.5; dibasic calcium phosphate, 8.02 (g kg⁻¹ diet); potassium chloride, 1.15 (g kg⁻¹ diet); sodium chloride, 0.44 (g kg⁻¹ diet).
^jAquacube (guar gum, polymethyl carbamide, manioc starch blend, hydrate calcium sulphate) Agil, UK.

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