Dietary Cholesterol Requirements of Large Red Swamp Crayfish (Procambarus clarkii)

Table 7

Effects of cholesterol level on antioxidant capacity of hepatopancreas of P. clarkii.

Dietary cholesterol level (g/kg)	T-AOC (mmol/g prot)	CAT (U/mg prot)	SOD (U/mg prot)	MDA (nmol/mg prot)
2.47 (C0)	1.24 ± 0.09^a	13.04 ± 1.34^a	65.96 ± 4.88^a	13.23 ± 0.39^b
4.27 (C1)	1.51 ± 0.02^b	19.03 ± 0.71^bc	67.72 ± 3.16^a	11.03 ± 0.34^a
6.80 (C2)	1.53 ± 0.05^b	21.09 ± 1.47^c	68.03 ± 3.29^a	10.55 ± 0.58^a
8.77 (C3)	1.71 ± 0.06^c	20.34 ± 0.78^c	70.17 ± 3.35^a	10.65 ± 0.66^a
11.74 (C4)	1.18 ± 0.04^a	17.06 ± 0.70^b	78.78 ± 3.11^b	10.41 ± 0.53^a
14.24 (C5)	1.15 ± 0.03^a	12.05 ± 0.80^a	71.70 ± 2.91^ab	9.68 ± 0.72^a
ANOVA
P value	0.001	0.001	0.001	0.001
Regression (n = 3)
Linear
Adj. R^2	0.028	−0.036	0.341	0.613
P value	0.241	0.529	0.002	0.001
Quadratic
Adj. R^2	0.649	0.927	0.332	0.694
P value	0.001	0.001	0.006	0.001

Note: Values represent mean ± SD. Different letters in the same row indicate a significant difference between groups (). T-AOC, total antioxidant capacity; CAT, catalase; SOD, superoxide dismutase; MDA, malondialdehyde.