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Table 2 Phylum-level composition of the rumen samples from different groups of heifers (relative abundance ≥0.1%)

From: Effects of dietary energy levels on rumen bacterial community composition in Holstein heifers under the same forage to concentrate ratio condition

Phylum Treatments SEM P
L M H Treatment Age Treatment × Age
Actinobacteria 1.97 1.63 1.33 0.0010 0.0690 0.0014 0.0989
Bacteroidetes 20.8 23.44 18.69 0.0114 0.2825 < 0.0001 0.9667
Chloroflexi 0.29 0.24 0.21 0.0003 0.1783 0.0004 0.1384
Firmicutes 54.69 54.79 51.62 0.0065 0.1295 < 0.0001 0.3535
Proteobacteria 13.41 10.76 15.57 0.0205 0.6438 0.0002 0.6974
Spirochaetes 0.10 0.10 0.08 0.0001 0.7489 0.0001 0.3636
Tenericutes 2.03 1.99 2.04 0.0017 0.9897 < 0.0001 0.1050
TM7 2.42 2.1 2.04 0.0016 0.6041 0.0191 0.3990