Table 1. Metagenomic sequencing coverage and the alpha diversity.

Sample	High quality reads# (metagenomic data)	Assembled Contig#	Average N50 length	Annotated Genes#	Average Length
Buffalo (n = 10)	63456244	171549	4705	304800	594
SEM (Buffalo)	3236739	6325	835	100733	63
Cattle (n = 10)	60219098	100122	8182	191639	639
SEM (Cattle)	1579564	6146	553	83993	79
Sample	OTU# (16S rRNA sequencing data)	Observed Species	Chao 1 Index	Shannon Index	Simpson Index
Buffalo (n = 10)	2021	2003.19	4011.50	9.85	0.9973
SEM (Buffalo)	370	365.68	1065.66	0.40	0.0010
Cattle (n = 10)	2309	2294.62	4530.06	9.63	0.9952
SEM (Yak)	579	173.88	847.99	0.82	0.0039