Table 4.

Changes in plasma antioxidant enzymes of finishing pigs fed a high dose of supplemental daidzein^a

Variables	Control	Daidzein	SEM	P-value
γ-GCSb, U/mL
Barrow	3.46	5.23	0.49	0.05
Gilt	3.56	5.20	0.74	0.15
T-SODc, U/mL
Barrow	53	58.48	2.66	0.18
Gilt	54.11	53.94	3.12	0.16
T-AOCd, U/mL
Barrow	1.49	0.98	0.23	0.16
Gilt	1.24	1.36	0.27	0.70
GSTe, U/mL
Barrow	21.10	18.31	1.6	0.25
Gilt	22.38	19.27	1.28	0.12
CATf, U/mL
Barrow	4.73	4.15	0.86	0.66
Gilt	3.79	3.63	0.68	0.86
GSH/GSSGg
Barrow	1.75	1.78	0.66	0.95
Gilt	1.57	1.69	0.39	0.86
PAB valueh
Barrow	39.31	53.19	1.17	<0.01
Gilt	45.02	42.96	0.74	0.23

^aValues are means (n = 6)

^bγ-GCS, γ-glutamylcysteine synthetase activity

^cT-SOD, total superoxide dismutase activity

^dT-AOC, total antioxidant capacity

^eGST, glutathione-S-transferase activity

^fCAT, catalase activity

^gGSH/GSSG, reduced glutathione/oxidized glutathione

^hPAB, prooxidant-antioxidant balance