Table 4.

Effect of C. butyricum (CB) supplementation on growth performance and diarrhea of weaned pigs in Exp.1^a

Items	Experimental treatments						Statistics
	CON	AB	0.1% CB	0.2% CB	0.4% CB	0.8% CB	SEM	P-value
BW, kg
0 d	7.11	7.11	7.10	7.11	7.11	7.11	0.005	0.999
14 d	10.33	10.20	9.87	10.23	10.50	10.27	0.101	0.657
28 d	16.17	16.51	15.44	16.29	16.91	15.40	0.248	0.454
ADFI, g/d
1–14 d	343.99	334.40	305.91	338.76	349.84	322.17	7.754	0.640
14–28 d	714.72	734.53	652.58	720.94	730.52	641.21	15.851	0.357
1–28 d	529.35	534.47	479.25	529.85	540.18	481.69	10.981	0.398
ADG, g/d
1–14 d	229.97	220.45	197.83	222.59	248.75	225.51	7.281	0.540
14–28 d	417.26	461.31	397.32	433.04	457.59	367.16	12.731	0.240
1–28 d	323.62	336.83	297.57	327.81	349.97	295.08	8.925	0.443
F/G
1–14 d	1.50	1.54	1.59	1.53	1.42	1.45	0.023	0.299
14–28 d	1.77	1.60	1.65	1.67	1.60	1.78	0.029	0.291
1–28 d	1.65	1.60	1.63	1.62	1.55	1.66	0.019	0.633
bDiarrhea score
1–14 d	0.17	0.15	0.17	0.15	0.05	0.09	0.019	0.442
14–28 d	0.29	0.18	0.25	0.20	0.21	0.28	0.018	0.439
1–28 d	0.23	0.16	0.21	0.17	0.13	0.19	0.015	0.518

^aCON, piglets fed the basal diet; AB, piglets fed the basal diet supplemented with 75 mg chlortetracycline and 20 mg enramycin per kilogram; CB, piglets fed the basal diet supplemented with C. butyricum preparation;

^bDiarrhea score = sum of the fecal score / number of test piglets; fecal score: 0, normal; 1, soft feces; 2, mild diarrhea; and 3, severe diarrhea