Table 1 The diversity analysis for DGGE profiles of different groups at different periods

 A (n = 5)

8.80 ± 1.643

2.013 ± 0.194

0.948 ± 0.193

0.849 ± 0.034

 B (n = 5)

8.80 ± 1.924

2.126 ± 0.258

0.954 ± 0.0213

0.898 ± 0.047

 C (n = 5)

9.60 ± 2.074

2.231 ± 0.224

0.958 ± 0.015

0.913 ± 0.049

 D (n = 5)

30 ± 3.536^a,b,c

3.396 ± 0.112^a,^b,c

0.997 ± 0.001^a

0.968 ± 0.005^a,^b,c

 A (n = 5)

10.00 ± 1.581

2.424 ± 0.217

0.998 ± 0.008

0.897 ± 0.017

 B (n = 5)

12.20 ± 3.114

2.606 ± 0.246

0.993 ± 0.009

0.910 ± 0.025

 C (n = 5)

40.80 ± 3.271^a,^b

3.690 ± .083^a,^b

0.996 ± 0.002

0.974 ± 0.002^a,^b

 D (n = 5)

52.00 ± 4.000^a.^b,c

3.933 ± 0.078^a,^b,c

0.996 ± 0.004

0.980 ± 0.002^a,^b

 A (n = 5)

22.60 ± 4.278

2.9376 ± 0.211

0.984 ± 0.002

0.946 ± 0.010

 B (n = 5)

27.00 ± 8.367

3.2188 ± 0.344

0.989 ± 0.006

0.956 ± 0.016

 C (n = 5)

55.60 ± 5.320^a,^b

4.00 ± 0.0732^a,^b

0.995 ± 0.004

0.982 ± 0.003^a,^b

 D (n = 5)

59.80 ± 3.962^a,^b

4.074 ± 0.081^a,^b

0.996 ± 0.003^a,^b

0.982 ± 0.001^a,^b