Table 4.

Formulation and proximate compositions of the experimental diets (% of dry matter).

Ingredients	Diets
	C0	C8	C12	C16	C20	C24
Fish meal	57	57	57	57	57	57
Wheat gluten	13	13	13	13	13	13
Alpha-starch	0	5	5	5	5	5
Corn starch	0	1.7	5.7	9.7	13.7	17.7
Soybean lecithin	1	1	1	1	1	1
Fish oil	3.5	3.5	3.5	3.5	3.5	3.5
Choline chloride	0.4	0.4	0.4	0.4	0.4	0.4
Ethoxyquin	0.05	0.05	0.05	0.05	0.05	0.05
Mold inhibitora	0.1	0.1	0.1	0.1	0.1	0.1
Monocalcium phosphate	0.5	0.5	0.5	0.5	0.5	0.5
Vitamin premixb	0.6	0.6	0.6	0.6	0.6	0.6
Minerals premixc	0.5	0.5	0.5	0.5	0.5	0.5
Y2O3	0.1	0.1	0.1	0.1	0.1	0.1
Bentonite	6.7	0	0	0	0	0
Carboxymethyl cellulose	16.55	16.55	12.55	8.55	4.55	0.55
Total	100	100	100	100	100	100
Proximate analysis (% dry matter)
Dry matter (% diet)	95.65	96.80	96.61	97.23	97.08	96.96
Crude protein	49.96	49.59	49.49	49.60	49.99	50.44
Crude lipid	9.59	9.73	9.65	9.98	9.75	9.96
Carbohydrated	0.93	7.01	11.06	15.60	19.96	23.18
Ash	17.73	12.46	11.72	11.73	11.93	12.13

^aMold inhibitor: 50% calcium propionic acid and 50% fumaric acid.

^bVitamin premix (g kg⁻¹ of diet): microcrystalline cellulose, 9.884 × 10^–2; VA, 1.92 × 10^–4; VB1, 1.5 × 10^–4; VB2, 2.7 × 10^–4; VB6, 1.2 × 10^–4; VB12, 6 × 10^–5; VD, 2.1 × 10^–4; VE, 1.44 × 10^–3; VK, 6 × 10^–5; calcium pantothenate, 3.6 × 10^–4; nicotinic acid, 1.2 × 10^–3; folic acid, 1.2 × 10^–4; biotin, 3.6 × 10^–4; inositol, 4.8 × 10^–3; VC phosphate, 1.2 × 10^–2.

^cMineral premix (g kg⁻¹ of diet): MgSO₄·7H₂O, 6 × 10^–3; CuSO₄·5H₂O, 5 × 10^–5; FeSO₄·H₂O, 4 × 10^–4; ZnSO₄·H₂O, 2.5 × 10^–4; MnSO₄·H₂O, 2.25 × 10^–4; CoCl₂·6H₂O (1%), 2.5 × 10^–4; Na₂SeO₃ (1%), 1 × 10^–4; calcium iodate, 3 × 10^–4; zeolite powder, 4.243 × 10^–2.

^dDetermined by the 3,5-dinitro salicylic acid method¹²⁰.