Table 1. Formulation and proximate chemical composition of the experimental diets (g/kg)

Ingredient (g)	Treatments
Ingredient (g)	Control	D-Lt	D-Ws	D-Ma	D-Yb	D-Wc
Fishmeal (Peru)	385	385	385	385	385	385
Fishmeal (Vietnam)	150	150	150	150	150	150
Squid meal	160	160	160	160	160	160
Soybean oil	80	80	80	80	80	80
Rice bran	20	20	20	20	20	20
Wheat flour	15.0	14.5	14.5	14.5	14.5	14.5
Corn gluten	100	100	100	100	100	100
Soybean oil	26	26	26	26	26	26
Vitamin premix¹⁾	15	15	15	15	15	15
Lysine	0.5	0.5	0.5	0.5	0.5	0.5
Methionine	0.2	0.2	0.2	0.2	0.2	0.2
Polymethylcarbamide	10	10	10	10	10	10
Mineral premix²⁾	5.3	5.3	5.3	5.3	5.3	5.3
Seaweed	3.3	3.3	3.3	3.3	3.3	3.3
Carotenoids supplement	0	0.5	0.5	0.5	0.5	0.5
Chemical and proximate composition (%)
Crude protein	50.38	50.15	50.21	50.33	50.19	50.41
Crude lipid	9.11	9.09	9.16	9.20	9.22	9.13
Ash	9.51	9.56	9.48	9.61	9.44	9.54
Moisture	10.02	10.09	10.16	9.96	10.11	10.17
Carotenoids	0.04	0.52	0.54	0.55	0.53	0.58

Vitamin premix (mg/kg diet): Vitamin A, 1,000,000 IU; Vitamin D3, 300,000 IU; Vitamin C monophosphate, 10,000 mg; Pantothenic acid, 2,500 mg; Vitamin E, 2,000 mg; Vitamin B3, 2,000 mg; Vitamin K3, 500 mg; Vitamin B1, 500 mg; Vitamin B6, 500 mg; Vitamin B2, 320 mg; Folic acid, 200 mg; Biotin, 20 mg; Vitamin B12, 5 mg; Inositol, 10 mg; Choline chloride, 5 mg.
Mineral premix (mg/kg diet): Zn (ZnO), 4,750 mg; Mn (MnSO₄.H₂O), 1,900 mg; Mg (MgO), 1,050 mg; Co (CoCO₃), 47.5 mg; Se (Na₂SeO₂), 47.5 mg; I (Ca(IO₂)₂ · H₂O), 19 mg; P (CaHPO₄ · 2H₂O), 0.7%; Ca (CaHPO4.2H2O), 0.8%; Moisture, 10%; Ash, 2%; Ethoxyquin, 240 mg; Carrier (Dextrose), 86%. Provimi Vietnam, Bien Hoa city, Dong Nai province, Vietnam.