Table 4.

Sequencing data and the alpha diversity in each group of sows.¹

Item	G100		L14		SEM	P-values
	CON	FLA	CON	FLA		Diet	Stage	Diet × Stage
Seq_num	37,236.40	35,306.80	36,122.60	35,546.80	425.43	0.16	0.61	0.44
OTU_num	701.80	708.80	621.60	597.00	12.58	0.73	<0.01	0.54
Shannon	4.84	4.97	4.80	4.58	0.04	0.59	0.02	0.05
Simpson	0.020	0.017	0.020	0.024	0.001	0.87	0.26	0.24
ACE	809.51	820.79	713.66	700.84	16.61	0.98	0.01	0.72
Chao	820.16	823.74	715.00	704.77	16.56	0.92	<0.01	0.84
Coverage	0.996	0.995	0.996	0.996	<0.001	0.31	0.05	0.76

Seq_num = sequence number; OTU_num = operational taxonomic unit number; ACE = abundance-based coverage estimator.

¹Sows were regarded as the experimental units, n = 5 for each group. G100: d 100 of gestation; L14: d 14 of lactation; CON, control group, basal diet; FLA, flavor supplementary group, basal diet + feed flavor supplement at 1 g/kg. When significant main effects or interactive effects were observed, the means were compared using the least significant difference method with a P < 0.05 indicating significance.