Table 4.

Malondialdehyde, reduced and total glutathione (GSH) and oxidized GSH (GSSG) concentrations in plasma before lipopolysaccharide injection on days 5 and 12 post-weaning from piglets fed diets supplemented with or without zinc and arginine.

Item1	Malondialdehyde, μmol/L		Reduced GSH, μmol/L		GSSG, μmol/L		Total GSH, μmol/L		GSSG:total GSH
	Day 5	Day 12	Day 5	Day 12	Day 5	Day 12	Day 5	Day 12	Day 5	Day 12
ZN0ARG0	2.73	3.05	1.62	3.04	0.42	0.59	2.37	4.46	0.183	0.142
ZN0ARG1	3.04	3.01	0.77	2.61	0.15	0.43	1.14	3.54	0.126	0.132
ZN2500ARG0	2.73	2.56	0.87	2.15	0.55	0.65	1.85	3.46	0.277	0.205
ZN2500ARG1	2.83	2.35	1.91	2.30	0.49	0.39	2.76	3.05	0.149	0.134
SEM	0.25		0.50		0.13		0.64		0.040
Arginine	NS		NS		0.039		NS		0.021
Zinc	0.041		NS		NS		NS		NS
Day	NS		0.001		NS		0.001		NS
Zinc × Arginine	NS		0.075		NS		NS		NS
Day × Zinc	NS		NS		NS		NS		NS
Day × Arginine	NS		NS		NS		NS		NS
Day × Zn × Arginine	NS		NS		NS		NS		NS

¹ZN0ARG0: control diet (n = 6); ZN0ARG1: control diet + 1% arginine (n = 6); ZN2500ARG0: control diet + 2,500 mg of zinc (zinc oxide) (n = 6); ZN2500ARG1: control diet + 2,500 mg of zinc (zinc oxide) + 1% arginine (n = 6).