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Table 3 Activity of bacterial α- and β-glucosidase, α- and β-galactosidase, and β-glucuronidase [μmol/h/g digesta] in the cecal 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

α-Glucosidase

 Extracellular

6.14 ± 0.626a

5.14 ± 0.545a

3.06 ± 0.202b

< 0.001

 Intracellular

0.520 ± 0.152b

0.650 ± 0.080b

2.21 ± 0.304a

< 0.001

 Total

6.66 ± 0.757

5.79 ± 0.584

5.27 ± 0.215

0.137

 Release rate3

93.0 ± 1.149a

88.4 ± 1.481a

58.9 ± 4.563b

< 0.001

β-Glucosidase

 Extracellular

5.79 ± 0.626a

4.26 ± 0.591a

1.77 ± 0.217b

< 0.001

 Intracellular

2.26 ± 0.362b

3.64 ± 0.507a

2.99 ± 0.234ab

0.033

 Total

8.05 ± 0.724a

7.90 ± 0.984a

4.76 ± 0.301b

0.010

 Release rate3

71.9 ± 3.565a

53.5 ± 3.271b

36.9 ± 3.854c

< 0.001

α-Galactosidase

 Extracellular

8.21 ± 0.631a

5.77 ± 0.398b

3.09 ± 0.328c

< 0.001

 Intracellular

7.37 ± 0.583a

4.36 ± 0.213b

5.17 ± 0.635b

0001

 Total

15.6 ± 1.051a

10.1 ± 0.554b

8.26 ± 0.668b

< 0.001

 Release rate3

52.7 ± 2.104a

56.6 ± 1.589a

39.2 ± 5.022b

0.002

β-Galactosidase

 Extracellular

11.8 ± 1.665

11.2 ± 1.303

9.13 ± 0.858

0.221

 Intracellular

14.7 ± 1.998

12.5 ± 2.972

12.1 ± 1.777

0.476

 Total

26.5 ± 3.526

23.7 ± 3.832

21.2 ± 2.157

0.317

 Release rate3

44.4 ± 2.115

49.6 ± 3.620

44.5 ± 3.240

0.287

β-Glucuronidase

 Extracellular

36.7 ± 4.006a

32.5 ± 3.150ab

23.5 ± 2.000b

0.015

 Intracellular

32.8 ± 2.675

28.2 ± 5.291

24.7 ± 2.511

0.189

 Total

69.5 ± 4.877a

60.7 ± 5.947ab

48.2 ± 3.262b

0.011

 Release rate3

52.2 ± 3.548

55.2 ± 4.127

49.1 ± 3.449

0.319

  1. a, b, cmeans 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)
  4. 3Release rate = extracellular enzyme activity expressed as a percentage of total (extra- + intracellular) enzyme activity