Table 2. The growth performance, feed utilization, survival and organ indices of juvenile red drum Sciaenops ocellatus fed different dietary vitamin C diets for 70 days

Parameters	Vitamin C concentration (mg/kg)
	0	100	200	400	600	800	1,000
IBW (g)	1.82 ± 0.40	1.82 ± 0.40	1.82 ± 0.40	1.82 ± 0.40	1.82 ± 0.40	1.82 ± 0.40	1.82 ± 0.40
FBW (g)	15.38 ± 0.82	18.88 ± 0.38	29.72 ± 0.31	32.96 ± 1.09	24.90 ± 0.54	23.17 ± 0.20	21.07 ± 0.19
GBW (g)	13.56 ± 0.82	17.06 ± 0.38	27.91 ± 0.31	31.14 ± 1.09	23.08 ± 0.54	21.35 ± 0.20	19.25 ± 0.19
WG (%)	235.84 ± 14.18	296.71 ± 6.66	485.31 ± 5.47	541.54 ± 18.95	401.45 ± 9.37	371.30 ± 3.55	334.78 ± 3.32
SGR (%/day)	3.03 ± 0.08a	3.34 ± 0.03b	3.99 ± 0.02c	4.13 ± 0.05g	3.74 ± 0.03f	3.64 ± 0.01e	3.50 ± 0.01d
HSI (%)	2.98 ± 0.40	2.92 ± 0.51	1.75 ± 0.22	1.78 ± 0.19	1.80 ± 0.20	1.86 ± 0.42	2.60 ± 0.32
VSI (%)	7.56 ± 1.03	7.46 ± 1.25	4.04 ± 0.30	4.35 ± 0.81	5.78 ± 0.42	4.95 ± 0.75	6.73 ± 0.75
PER (%)	0.81 ± 0.05	1.02 ± 0.02	1.66 ± 0.02	1.85 ± 0.06	1.37 ± 0.03	1.27 ± 0.01	1.15 ± 0.01
PPV	0.12 ± 0.00	0.25 ± 0.01	0.31 ± 0.00	0.31 ± 0.00	0.30 ± 0.00	0.30 ± 0.00	0.27 ± 0.01
FCR	2.33 ± 0.16	1.80 ± 0.04	1.09 ± 0.01	0.99 ± 0.04	1.33 ± 0.03	1.59 ± 0.01	1.43 ± 0.02
SR (%)	100	100	100	100	100	100	100

Values are means ± SE (n = 9).
Values with different superscript letters within a row are significantly different (p < 0.05).
IBW, initial body weight; FBW, final body weight; GBW, gain body weight; WG, weight gain; SGR, specific growth rate; HSI, hepatosomatic index; VSI, viscerosomatic index; PER, protein efficiency ratio; PPV, Protein productive value; FCR, food conversion ratio; SR, survival rate.