Table 3.

Comparison of the intestinal microbiota structure of pig groups^a.

Timeb	Compared pig groups		AMOVA (p-value)
			Yue & Clayton index	Jaccard index
t0	Biter	Negative	0.001*	0.246
	Bitten	Negative	0.001*	0.306
	Biter	Bitten	0.476	0.439
t1	Biter	Negative	0.244	0.318
	Bitten	Negative	0.295	0.55
	Biter	Bitten	0.866	0.46

^aBased on 1,000 subsampling of 32,374 sequences.

^bt0, immediately following selection of the pig groups; and t1, 4 weeks later.

^*Statistically significant differences after adjusting the alpha threshold downwards with the sequential Benjamini and Hochberg procedure (39).