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Table 6 Concentrations [μmol/g digesta], profile [μmol/100 μmol total SCFA] and pool [μmol/kg BW] of SCFAs in the cecal and colonic digesta of rabbits (mean ± SEM1)

From: The effect of dietary supplementation with silkworm pupae meal on gastrointestinal function, nitrogen retention and blood biochemical parameters in rabbits

 

Group2

p value

SBM

SPM5

SPM10

Cecum

 SCFA concentration

  acetic acid

32.5 ± 1.603

33.0 ± 2.028

29.8 ± 1.725

0.283

  propionic acid

3.53 ± 0.305

4.60 ± 0.508

3.50 ± 0.185

0.055

  iso-butyric acid

0.463 ± 0.045

0.443 ± 0.038

0.353 ± 0.018

0.067

  butyric acid

2.95 ± 0.288ab

3.20 ± 0.358a

2.16 ± 0.198b

0.033

  iso-valeric acid

0.713 ± 0.053a

0.688 ± 0.050a

0.525 ± 0.040b

0.021

  valeric acid

0.585 ± 0.043ab

0.713 ± 0.128a

0.435 ± 0.038b

0.040

  total putrefactive SCFAs

1.76 ± 0.120a

1.85 ± 0.180a

1.31 ± 0.068b

0.018

  total SCFAs

40.8 ± 2.001

42.8 ± 2.775

36.8 ± 1.753

0.110

 SCFA profile

  acetic acid

79.9 ± 1.006ab

77.6 ± 0.592b

80.9 ± 1.051a

0.030

  propionic

8.64 ± 0.634

10.5 ± 0.519

9.64 ± 0.841

0.094

  butyric acid

7.12 ± 0.415ab

7.58 ± 0.685a

5.86 ± 0.419b

0.049

  SCFA pool

1573 ± 90.11

1900 ± 199.4

2055 ± 161.6

0.067

Colon

 SCFA concentration

  acetic acid

18.6 ± 1.385

16.8 ± 1.783

13.7 ± 1.538

0.065

  propionic acid

2.38 ± 0.155

2.73 ± 0.220

2.14 ± 0.428

0.222

  iso-butyric acid

0.343 ± 0.035

0.363 ± 0.023

0.405 ± 0.033

0.226

  butyric acid

1.62 ± 0.125

1.74 ± 0.188

1.27 ± 0.195

0.103

  iso-valeric acid

0.475 ± 0.053a

0.258 ± 0.043b

0.420 ± 0.030a

0.003

  valeric acid

0.320 ± 0.025

0.333 ± 0.028

0.318 ± 0.018

0.666

  total putrefactive SCFAs

1.14 ± 0.073

0.955 ± 0.053

1.14 ± 0.053

0.055

  total SCFAs

23.7 ± 1.233

22.2 ± 1.920

18.3 ± 1.798

0.053

 SCFA profile

  acetic acid

77.5 ± 2.303

74.3 ± 2.246

74.2 ± 2.667

0.399

  propionic acid

10.4 ± 0.993

12.9 ± 1.228

11.7 ± 1.803

0.278

  butyric acid

7.17 ± 1.006

8.28 ± 1.054

7.25 ± 1.095

0.519

  SCFA pool

250 ± 11.72

280 ± 32.65

268 ± 44.63

0.589

  1. a, bmeans with different superscripts in the same row differ significantly (P < 0.05)
  2. 1SEM - standard error of the mean
  3. 2Group: SBM - 10% SBM, SPM5–5% SBM and 5% SPM, SPM10–10% SPM (SBM - soybean meal, SPM - dried silkworm pupae meal)