Table 10.

Effect of substituting SBM with YMM on intestinal antioxidant enzyme activities of grass carp after 8 weeks¹.

Item	Groups					P-value
	SBM	H25	H50	H75	H100	ANOVA	Linear	Quadratic
ROS, U/mg	8.81 ± 0.115b	4.60 ± 0.194a	4.91 ± 0.188a	8.81 ± 0.607b	10.00 ± 0.141c	0.001	0.008	0.001
MDA, nmol/mg	15.57 ± 0.563b	8.88 ± 0.378a	9.89 ± 0.240a	15.01 ± 0.726ab	16.52 ± 0.743b	0.001	0.041	<0.001
SOD, U/mg	55.78 ± 1.679b	75.54 ± 2.042d	69.26 ± 0.987c	66.18 ± 1.712c	43.18 ± 0.966a	0.001	0.004	0.002
GPx, U/mg	107.66 ± 0.680a	117.81 ± 0.417b	111.11 ± 0.910ab	108.90 ± 0.767a	108.99 ± 0.893a	0.001	0.005	0.026
CAT, U/mg	5.96 ± 0.404a	12.02 ± 0.302b	10.77 ± 0.295b	6.73 ± 0.561a	5.03 ± 0.520a	0.001	0.006	0.003
GSH, μmol/mg	175.84 ± 3.361a	221.31 ± 2.450b	193.77 ± 3.459a	179.52 ± 1.968a	171.67 ± 0.999a	0.001	0.018	0.012

YMM = yellow mealworm meal; SBM = soybean meal; ROS = reactive oxygen species; MDA = malondialdehyde; SOD = superoxide dismutase; GPx = Glutathione peroxidase; CAT = catalase; GSH = Glutathione.

Different superscripts were used to show statistical differences at P < 0.05.

¹SBM was substituted by YMM at 0% (SBM), 25% (H25), 50% (H50), 75% (H75) and 100% (H100), respectively.