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

Ingredient	Treatments
	Control	Ch-egg	Sh-shell	Cope	Sn-egg	Astax
Fishmeal (Peru) (g)	470	470	470	470	470	470
Fishmeal (Vietnam) (g)	180	180	180	180	180	180
Squid meal (g)	170	170	170	170	170	170
Corn gluten meal (g)	115.90	115.65	115.65	115.65	115.65	115.65
Soybean oil (g)	45.6	45.6	45.6	45.6	45.6	45.6
Vitamin premix (g)1)	12.8	12.8	12.8	12.8	12.8	12.8
Lysine (g)	0.5	0.5	0.5	0.5	0.5	0.5
Methionine (g)	0.2	0.2	0.2	0.2	0.2	0.2
Mineral premix (g)2)	5.0	5.0	5.0	5.0	5.0	5.0
Carotenoids supplement (g)	0	0.25	0.25	0.25	0.25	0.25
Chemical and proximate composition
Crude protein (%)	55.00	55.16	55.07	55.21	55.10	55.19
Crude lipid (%)	12.01	12.09	11.96	12.12	11.97	12.16
Ash (%)	11.09	11.11	10.92	11.21	11.14	11.16
Moisture (%)	10.04	10.11	10.01	10.17	10.09	9.92
Carotenoids (g)	0.04	0.27	0.28	0.25	0.26	0.28

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.