Table 5.

Effect of dietary AEO levels on serum antioxidant indices in pigs.

Items	CTC level, mg/kg	AEO levels, mg/kg				p-value	p-value
	75	0	250	500	1,000		Linear	Quadratic
SOD/(U/ml)	35.19 ± 16.78	41.69 ± 10.11	40.01 ± 7.94	38.68 ± 8.73	40.78 ± 6.42	0.918	0.833	0.662
GPX/(U/ml)	1751.23 ± 343.41	1553.69 ± 239.55	1708.31 ± 220.69	1781.56 ± 222.59	1750.18 ± 272.26	0.755	0.204	0.613
CAT/(U/ml)	4.19 ± 1.07	4.65 ± 1.35	5.23 ± 0.83	5.65 ± 0.63	5.13 ± 0.55	0.265	0.296	0.361
GSH/(μmol/L)	43.37 ± 11.71	37.70 ± 9.95	49.02 ± 4.61	52.60 ± 4.98	44.90 ± 3.90	0.123	0.045	0.026
T-AOC/(mmol/L)	1.17 ± 0.13	1.31 ± 0.05	1.35 ± 0.07	1.32 ± 0.08	1.28 ± 0.05	0.060	0.662	0.180
MDA/(nmol/ml)	2.55 ± 0.86	2.58 ± 0.58	2.30 ± 0.62	2.35 ± 0.65	2.33 ± 0.68	0.958	0.576	0.712

In the same row, values with different small letter superscripts mean a significant difference (p < 0.05), the same as in the following.