Table 3 Top 10 dominant genera of rumen microbiota with different energy intake (%)

Prevotella

46.47 ± 6.84

38.25 ± 6.87

36.08 ± 12.73

0.44

unclassified_Lachnospiraceae

3.02 ± 0.99^a

4.30 ± 1.85^ab

9.39 ± 2.56^b

0.03

unclassified_Bacteroidales

6.32 ± 0.89^b

5.54 ± 1.61^b

1.65 ± 0.34^a

0.01

unclassified_Clostridiales

4.11 ± 1.56

3.10 ± 0.94

7.13 ± 3.39

0.22

unclassified_Prevotellaceae

3.31 ± 0.59

4.48 ± 1.39

2.90 ± 1.78

0.42

unclassified_Rikenellaceae

4.81 ± 1.75^ab

5.88 ± 2.59^b

0.29 ± 0.06^a

0.04

Bacteroides

4.31 ± 0.40^b

4.09 ± 0.66^b

2.27 ± 0.42a

0.01

unclassified_Ruminococcaceae

0.91 ± 0.25

2.56 ± 0.72

1.53 ± 0.68

0.06

Clostridium

0.99 ± 0.35

1.77 ± 0.58

1.76 ± 0.47

0.26

Olsenella

0.10 ± 0.05

0.83 ± 0.38

3.02 ± 1.86

0.08