Table 1. Statistics of metagenomics assembly for three tissues.

Statistics	Blood		Fecal		Muscle
	Contig	CDS	Contig	CDS	Contig	CDS
Total number	40,086	61,992	287,646	628,309	155,131	174,718
Total length(Mb)	37.16	27.83	470.47	375.63	151.50	43.71
N50 length (bp)	1,930	717	5,153	963	2,060	306
N90 length (bp)	309	213	498	294	314	123
Max length (bp)	488,134	10,443	546,844	29,826	112,716	147,900
Min length (bp)	200	57	300	57	200	57
GC content	32.73%	32.94%	48.30%	49.18%	49.97%	52.26%
Mapped reads	91.43%	66.33%	88.87%	57.86%	18.57%	7.11%