Table 3 Differences in short-chain fatty acid (SCFA) profiles between gastrointestinal tract sections of calves

Total SCFA, µmol/g

90.1^b

135^a

153^a

19.1^c

9.08^c

8.06^c

76.3^b

4.10

< 0.01

Acetate, %

62.0^c

59.6^c

59.9^c

70.2^b

77.1^b

91.2^a

71.8^b

1.48

< 0.01

Propionate, %

26.9 ^ab

28.0^a

27.9^a

22.5^b

18.4^bc

6.25^d

17.3^c

1.17

< 0.01

n-Butyrate, %

6.66^a

7.50^a

7.36^a

4.41^b

2.99^bc

1.37^c

7.96^a

0.52

< 0.01

Iso-Butyrate, %

0.88

0.79

0.78

0.67

0.49

0.98

1.00

0.21

0.60

n-Valerate, %

2.18^ab

2.86^a

2.88^a

1.55^b

0.78^b

0.12^c

1.10^b

0.26

< 0.01

Iso-Valerate, %

0.92^a

0.79^a

0.77^a

0.48^b

0.22^bc

0.02^c

0.81^a

0.08

< 0.01