Table 2.

Effects of orally administrated Lactobacillus delbrueckii on serum antioxidant indices of piglets¹.

Items	Day 21			Day 28			Day 49
	CON	LAB	P value	CON	LAB	P value	CON	LAB	P value
T-AOC, U/mL	2.52 ± 0.09	3.32 ± 0.27	0.02	1.56 ± 0.18	1.53 ± 0.14	0.91	1.30 ± 0.09	1.26 ± 0.07	0.7
SOD, U/mL	28.69 ± 0.89	28.87 ± 0.24	0.86	28.94 ± 1.57	29.35 ± 0.66	0.81	29.61 ± 0.48	29.24 ± 0.37	0.56
GSH-Px, U/mL	450.83 ± 25.35	463.31 ± 21.25	0.71	454.82 ± 17.78	475.79 ± 22.38	0.48	451.99 ± 25.88	492.04 ± 17.52	0.23
CAT, U/mL	76.08 ± 3.51	86.46 ± 3.90	0.09	108.23 ± 12.04	111.18 ± 10.34	0.86	92.36 ± 3.27	114.40 ± 2.54	<0.01
MDA, nmol/mL	2.03 ± 0.26	1.29 ± 0.10	0.04	1.85 ± 0.23	1.28 ± 0.11	0.06	1.89 ± 0.13	0.97 ± 0.13	<0.01

¹Six piglets per treatment. CON = piglets in the negative control group; LAB = piglets in the group that was orally administrated with Lactobacillus delbrueckii during the suckling period.