Table 4.

Effects of dietary palygorskite-based antibacterial agent supplementation on the plasma endotoxin and D-lactate levels of broiler chickens.

Items1	CON	ANT	Palygorskite-based antibacterial agent level (mg/kg)				SEM2	P values
			250	500	1,000	2,000		ANOVA	Linear	Quadratic
21 d
Endotoxin (EU/mL)	0.64	0.62	0.62	0.52	0.48	0.47	0.03	0.453	0.075	0.864
D-lactate (mmol/L)	0.68	0.52	0.53	0.50	0.47	0.42	0.03	0.107	0.007	0.612
42 d
Endotoxin (EU/mL)	0.65a	0.58a	0.54ab	0.45abc	0.31bc	0.28c	0.04	0.010	0.001	0.797
D-lactate (mmol/L)	0.63a	0.55a	0.52ab	0.54a	0.42bc	0.38c	0.19	0.001	<0.001	0.520

^a,b,cMeans within a row with different superscripts are different at P < 0.05.

¹CON, control group; ANT, antibiotic group.

²SEM = Standard error of the mean (n = 8).