Table 6
The pyrosequencing data of bacterial communities in pig feces^a

	2012	2007
Total valid reads	13,264	14,018
bOTUs	635	672
Ace	815	824
Chao 1 shared richness	774	777
JackKnife	829	849
Shannon–Weaner index (H)	3.95	4.11
Simpson’s index (D)	0.1	0.1
Goods library coverage	98	99