Table 3 The Eh (mV), pH and volatile fatty acid (VFA, mmol/L) values in the different large intestines of finishing pigs

−379.47 ± 5.09^a

−379.33 ± 3.63^a

− 375.03 ± 4.19^a

− 363.10 ± 6.52^ab

− 355.50 ± 7.01^b

6.15 ± 0.08

6.11 ± 0.07

6.09 ± 0.07

6.10 ± 0.05

6.13 ± 0.06

33.13 ± 1.65^ab

33.50 ± 1.87^a

29.43 ± 1.96^ab

29.24 ± 1.69^ab

27.82 ± 1.74^b

12.78 ± 0.99^a

11.75 ± 0.91^b

11.22 ± 1.00 ^b

10.24 ± 1.01^b

10.04 ± 0.98^b

5.60 ± 0.74

7.26 ± 1.09

6.44 ± 0.90

5.19 ± 0.85

5.87 ± 0.73

2.79 ± 0.12

3.19 ± 0.20

3.18 ± 0.38

3.49 ± 0.30

3.40 ± 0.34

51.48 ± 3.03

52.41 ± 3.45

46.98 ± 3.41

44.57 ± 3.25

43.62 ± 3.01