Table 2.

Effect of dietary supplementation with Macleaya cordata extract on D-lactate, IgG, IgM, and TNF-α in growing pigs.

Parameter	Dietary supplementation			SEM±	P value
	No additive	Macleaya cordata extract	Colistin
D 7 after initiation of treatment
D-Lactate, mg/L	7.95	9.12	7.06	1.119	0.477
DAO, units/mL	2.53	2.46	2.42	0.216	0.536
IgG, mg/mL	138.41b	174.45a	143.44b	10.801	<0.05
IgM, mg/mL	43.20	39.60	38.40	6.635	0.869
TNF-α, pg/mL	62.34	58.98	59.36	7.510	0.478
D 14 after initiation of treatment
D-Lactate, mg/L	10.26a	8.21ab	7.45b	0.813	<0.05
DAO	2.42	2.39	2.30	0.166	0.632
IgG, mg/mL	183.89	176.17	184.58	20.04	0.947
IgM, mg/mL	50.00	49.40	51.00	7.799	0.989
TNF- α	64.13	59.42	61.37	6.590	0.589
D 28 after initiation of treatment
D-Lactate, mg/L	9.10	9.36	7.60	1.169	0.535
DAO	2.25	2.30	2.18	0.157	0.453
IgG, mg/mL	196.38	219.60	201.72	16.768	0.604
IgM, mg/mL	63.20ab	49.60b	70.00a	6.224	<0.05
TNF-α	60.73	58.98	60.22	7.586	0.673

^a,bMeans within the same row with different superscript differ significantly (P < 0.05).

The experiment lasted 28 d; n = 6.