Table 11 Relative abundance of fecal microbiota in finishing pigs fed low CP diets with net energy and additional L-Glu supplementation (Exp. 3)

Phylum

 Bacteroidetes

43.24

39.14

38.72

2.60

0.350

 Firmicutes

31.33

28.31

31.79

2.54

0.452

 Proteobacteria

18.14

24.99

22.53

3.05

0.298

 Spirochaetes

4.75

5.36

5.56

1.84

0.923

 Tenericutes

1.43

1.15

0.79

0.31

0.369

 Others

1.11

1.05

0.61

0.35

0.354

Family

 Prevotellaceae

30.73

29.28

28.21

3.31

0.861

 Succinivibrionaceae

13.55

21.82

18.96

3.27

0.219

 Veillonellaceae

4.79

6.94

6.61

1.01

0.292

 Porphyromonadaceae

6.16

5.28

5.96

1.00

0.810

 Lachnospiraceae

4.53

5.48

6.00

1.14

0.226

 Spirochaetaceae

4.67

5.29

5.52

1.86

0.915

 Ruminococcaceae

4.48

3.99

4.88

0.87

0.770

 Streptococcaceae

6.11^a

2.02^b

2.26^b

1.16

0.002

 Eubacteriaceae

2.03

1.99

2.05

0.27

0.985

 Bacteroidaceae

2.16

1.82

1.77

0.44

0.784

 Erysipelotrichaceae

1.83^a

0.88^b

1.23^ab

0.24

0.037

 Lactobacillaceae

0.87

0.94

1.24

0.21

0.413

 Acidaminococcaceae

1.03

0.89

0.97

0.31

0.867

 Anaeroplasmataceae

1.15

0.89

0.55

0.32

0.416

 Rikenellaceae

0.86

0.89

0.76

0.39

0.971

 Sphingobacteriaceae

1.03

0.53

0.67

0.50

0.742

 Cytophagaceae

0.80

0.66

0.44

0.18

0.409

 Flavobacteriaceae

0.80

0.38

0.61

0.20

0.334

 Others

8.83

6.38

6.43

1.32

0.346

Species

 Prevotella copri

28.15

29.46

31.28

5.91

0.918

 Streptococcus alactolyticus

17.86^a

8.13^b

7.06^b

3.73

0.020

 Prevotella stercorea

9.63

10.44

10.51

2.13

0.948

 Succinivibrio dextrinosolvens

8.60

9.93

8.60

3.58

0.911

 Faecalibacterium prausnitzii

5.65

5.82

5.60

1.49

0.992

 Prevotella sp.

3.53

5.51

3.43

2.51

0.459

 Treponema porcinum

2.17

4.18

4.88

1.93

0.596

 Treponema Treponema

3.70

2.45

2.58

1.97

0.831

 Roseburia faecis

1.39

2.75

2.71

1.23

0.278

 Clostridium butyricum

1.56^B

1.93^AB

2.94^A

0.70

0.077

 Lactobacillus ruminis

1.64

1.59

2.31

0.65

0.505

 Clostridium sp.

1.44

1.03

2.46

0.51

0.147

 Butyrivibrio crossotus

0.05

1.41

1.28

1.03

0.595

 Streptococcus infantarius

0.93

0.64

0.63

0.28

0.631

 Roseburia intestinalis

0.37

0.98

0.79

0.51

0.220

 Clostridium sacchar

0.56

0.62

0.89

0.26

0.314

 Selenomonas sp.

0.67

0.62

0.54

0.25

0.925

 Desulfovibrio D168

0.66

0.85

0.31

0.32

0.506

 Campylobacter coli

0.67

0.62

0.30

0.30

0.496

 Selenomonas lipol

0.20

0.72

0.65

0.19

0.152

 Ruminococcus gnavus

0.35

0.66

0.52

0.16

0.240

 Others

10.21

9.66

10.07

1.94

0.960