Table 2. Effects of dietary probiotics on growth performance of piglets challenged with E. coli in Experiment 1

Items		BW (kg)			d 0 to 7			d 7 to 14			d 0 to 14
CHAL	PRO	d 0	d 7	d14	ADG (g)	ADFI (g)	G:F	ADG (g)	ADFI (g)	G:F	ADG (g)	ADFI (g)	G:F
-	NC	8.53	11.33	14.50ab	400.43	591.67	0.68	452.38	745.33	0.61	426.40	668.50	0.64
-	LA	8.47	11.93	16.23a	494.76	618.33	0.80	614.29	803.33	0.76	554.52	710.83	0.78
-	38W	8.58	11.73	15.17ab	450.48	583.33	0.77	490.48	745.00	0.66	470.48	664.17	0.71
-	PK	8.52	11.70	14.97ab	454.29	600.00	0.76	466.67	755.00	0.62	460.48	677.50	0.68
-	PF30	8.48	11.20	14.40ab	388.10	540.00	0.72	457.14	690.00	0.66	422.62	615.00	0.69
+	NC	8.51	10.67	13.50b	308.57	566.67	0.54	404.76	825.00	0.49	356.67	695.83	0.51
+	LA	8.50	11.83	15.47ab	476.19	665.00	0.72	519.05	791.67	0.66	497.62	728.33	0.68
+	38W	8.50	11.47	14.53ab	424.29	678.33	0.63	438.10	795.00	0.55	431.19	736.67	0.59
+	PK	8.59	11.20	14.03b	373.33	635.00	0.59	404.76	765.00	0.53	389.05	700.00	0.56
+	PF30	8.58	11.10	14.00b	360.48	595.00	0.61	414.29	780.00	0.53	387.38	687.50	0.56
-		8.52	11.58	15.05	437.61	586.67	0.75	496.19	747.73	0.66	466.90	667.20	0.70
+		8.53	11.25	14.31	388.57	628.00	0.62	436.19	791.33	0.55	412.38	709.67	0.58
	NC	8.52	11.00	14.00b	354.50d	579.17	0.61b	428.57b	785.17	0.55	391.54b	682.17	0.57b
	LA	8.49	11.88	15.85a	485.48a	641.67	0.76a	566.67a	797.50	0.71	526.07a	719.58	0.73a
	38W	8.54	11.60	14.85ab	437.38ab	630.83	0.69ab	464.29ab	770.00	0.60	450.83b	700.42	0.64ab
	PK	8.55	11.45	14.50b	413.81bc	617.50	0.67ab	435.71b	760.00	0.57	424.76b	688.75	0.62b
	PF30	8.53	11.15	14.20b	374.29cd	567.50	0.66ab	435.71b	735.00	0.59	405.00b	651.25	0.62b
p-value	CHAL	0.939	0.178	0.009	< 0.001	0.034	< 0.001	0.044	0.048	0.021	< 0.001	0.035	< 0.001
	PRO	1.000	0.156	0.001	< 0.001	0.068	0.002	0.021	0.418	0.183	< 0.001	0.275	0.003
	CHAL ⨯ PRO	0.999	0.926	0.961	0.165	0.394	0.876	0.981	0.513	1.000	0.877	0.809	0.998
SE		0.341	0.378	0.435	18.724	30.037	0.037	45.902	34.033	0.064	21.669	30.988	0.038

Values within a row with different superscripts are significantly different.
E. coli, Escherichia coli; BW, body weight; CHAL, challenge; PRO, probiotics; ADG, average daily gain; ADFI, average daily feed intake; G:F, feed efficiency; -, non-challenged with Escherichia coli; NC, non-supplemented with probiotics; LA, Lactobacillus plantarum; 38W, Pediococcus pentosaceus SMFM2016-WK1; PK, Pediococcus acidilactici K; PF30, Lactobacillus reuteri; +, challenged with E. coli.