TABLE 4.

Effects of different levels of dietary CGA supplementation on serum antioxidant parameters of the finishing pigs.

Items1	Control	0.02%	0.04%	0.08%	P-value
SOD, U/mL	57.85 ± 4.69	63.38 ± 4.20	65.41 ± 2.17	58.30 ± 1.94	0.41
GSH, mg/L	4.60 ± 0.31b	6.40 ± 0.57a	3.85 ± 0.73b	5.30 ± 0.38ab	0.02
GSH-PX, U	517.76 ± 25.13c	853.64 ± 25.20a	699.95 ± 77.52b	585.60 ± 21.57bc	<0.01
MDA, nmol/mL	2.30 ± 0.28	1.85 ± 0.16	2.12 ± 0.20	2.74 ± 0.59	0.27
T-AOC, U/mL	0.79 ± 0.18	1.11 ± 0.18	0.92 ± 0.23	0.80 ± 0.12	0.60

¹SOD, superoxide dismutase; GSH, glutathione; GSH-PX, glutathione peroxidase; MDA, malonaldehyde; T-AOC, total-antioxidant capacity.

^a,b,cValues in the same row with different superscript letters are significantly different at P < 0.05.