Effect of dietary carbohydrate sources on apparent nutrient digestibility of olive flounder (Paralichthys olivaceus) feed

Table 1 Ingredients and chemical composition of the experimental diets

	Diets
	WF	PS	CS	AL	DEX	CMC
Ingredients (%)
Fish meal	61.0	61.0	61.0	61.0	61.0	61.0
Corn gluten meal	5.0	5.0	5.0	5.0	5.0	5.0
Dehulled soybean meal	5.0	5.0	5.0	5.0	5.0	5.0
Wheat flour	20.0
α-potato starch		20.0
α-corn starch			20.0
Na alginate				20.0
Dextrin					20.0
Carboxymethyl cellulose						20.0
Squid liver oil	5.0	5.0	5.0	5.0	5.0	5.0
Vitamin premix^a	1.2	1.2	1.2	1.2	1.2	1.2
Mineral premix^b	1.5	1.5	1.5	1.5	1.5	1.5
Vitamin C (50 %)	0.3	0.3	0.3	0.3	0.3	0.3
Vitamin E (25 %)	0.2	0.2	0.2	0.2	0.2	0.2
Choline salt (50 %)	0.3	0.3	0.3	0.3	0.3	0.3
Cr₂O₃	0.5	0.5	0.5	0.5	0.5	0.5
Nutrient content (dry matter basis)
Crude protein (%)	53.2	49.6	50.7	49.8	49.3	49.4
Crude lipid (%)	7.9	7.5	8.2	9.4	9.2	8.4
Ash (%)	13.8	13.1	13.9	17.8	14.1	17.0
N-free extract (%)^c	25.1	29.8	27.2	23.0	27.4	25.2
Gross energy (kcal/g diet)	4.2	4.0	4.2	3.7	4.2	4.0

^aVitamin premix contained the following amount which were diluted in cellulose (g/kg mix): dl-α-tocopheryl acetate, 18.8; thiamin hydrochloride, 2.7; riboflavin, 9.1; pyridoxine hydrochloride, 1.8; niacin, 36.4; Ca-D-pantothenate, 12.7; myo-inositol, 181.8; D-biotin, 0.27; folic acid (98 %), 0.68; p-aminobenzoic acid, 18.2; menadione, 1.8; retinyl acetate, 0.73; cholecalciferol, 0.003; and cyanocobalamin, 0.003
^bMineral premix contained the following ingredients (g/kg mix): MgSO₄⋅7H₂O, 80.0; NaH₂PO₄⋅2H₂O, 370.0; KCl, 130.0; ferric citrate, 40.0; ZnSO₄⋅7H₂O, 20.0; Ca-lactate, 356.5; CuCl, 0.2; AlCl₃⋅6H₂O, 0.15; KI, 0.15; Na₂Se₂O₃, 0.01; MnSO₄⋅H₂O, 2.0; and CoCl₂⋅6H₂O, 1.0
^cCalculated = 100 − (crude protein + crude lipid + ash)

ISSN: 2234-1757