Involvement of Taste Receptors in the Oro-Sensory Perception of Nutrients in Rainbow Trout (Oncorhynchus mykiss) Fed Diets with Different Fatty Acid Profiles

Table 1

Ingredients and composition of the experimental diets.

Ingredient (g/100 g dry weight)	DIET
	Commercial-like	Vegetal V1	Vegetal V2
Fish meal	27.0	0.0	0.0
Extruded whole wheat	22.5	17.0	17.0
Corn gluten	8.7	17.0	17.0
Wheat gluten	7.0	17.0	17.0
Peas meal	3.0	6.0	6.0
Extruded peas	7.0	9.5	9.5
White lupin seed meal	2.5	4.5	4.5
Rapeseed meal	0.8	3.0	3.0
Soy lecithin	0.0	2.0	2.0
L-lysine	0.5	1.7	1.7
L-methionine	0.0	0.4	0.4
CaHPO4.2H2O	0.0	1.4	1.4
Mineral premix^a	1.0	1.0	1.0
Vitamin premix^b	1.0	1.0	1.0
Fish oil	4.8	0.0	0.0
Palm oil	2.0	5.0	6.0
Sunflower oil	4.9	2.7	4.7
Linseed oil	0.0	10.8	0.0
DHA marine oil (from Polaris)^c	7.3	0.0	0.0
DHA 700 algae sensor (from Polaris)^d	0.0	0.0	7.75
Composition (estimated)
Crude protein	48.00	48.00	48.00
Crude lipid	21.80	21.90	21.80
Starch	20.00	20.00	20.00
Energy (kJg-1 DM)	24.12	24.44	24.84

^aMineral premix: (g or mg kg− 1 diet): calcium carbonate (40% Ca), 2.15 g; magnesium oxide (60% Mg), 1.24 g; ferric citrate, 0.2 g; potassium iodide (75% I), 0.4 mg; zinc sulphate (36% Zn), 0.4 g; copper sulphate (25% Cu), 0.3 g; manganese sulphate (33% Mn), 0.3 g; dibasic calcium phosphate (20% Ca, 18% P), 5 g; cobalt sulphate, 2 mg; sodium selenite (30% Se), 3 mg; KCl, 0.9 g; NaCl, 0.4 g (UPAE, INRA). ^bVitamin premix: (IU or mg kg− 1 diet): DL-a tocopherol acetate, 60 IU; sodium menadione bisulphate, 5 mg; retinyl acetate, 15,000 IU; DL-cholecalciferol, 3000 IU; thiamin, 15 mg; riboflavin, 30 mg; pyridoxine, 15 mg; B12, 0.05 mg; nicotinic acid, 175 mg; folic acid, 500 mg; inositol, 1000 mg; biotin, 2.5 mg; calcium pantothenate, 50 mg; choline chloride, 2000 mg (UPAE, INRA). ^cOmegavie® DHA oil (min 70%): concentrated marine oil produced mainly from anchovy and sardine oil. The crude oil is first refined, then purified and concentrated. This oil contains marine DHA Omega 3 fatty acids under Triglycerides form. From POLARIS, Quimper, France. ^dOmegavie® DHA 700 algae sensor oil (min 70%): Oil from the micro-algae Schizochytrium sp., natural mixed tocopherols E306, vegetable oil (MCT), sunflower lecithin E322, ascorbyl palmitate E304, rosemary extract E392. This oil contains marine DHA Omega 3 fatty acids under Triglycerides form. From POLARIS, Quimper, France.