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Table 1 Nutrient digestibility and nitrogen (N) utilization in 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

Digestibility [%]

 Dry matter

62.61 ± 0.99

61.03 ± 3.21

58.31 ± 1.75

0.260

 Organic matter

64.04 ± 1.00

62.56 ± 5.28

59.65 ± 3.29

0.279

 Crude protein

73.75 ± 0.92

73.18 ± 2.17

70.61 ± 1.07

0.232

 Ether extract

80.68 ± 1.44

80.77 ± 5.87

80.98 ± 1.65

0.955

 Neutral detergent fiber

40.34 ± 1.66

38.99 ± 5.26

33.78 ± 3.45

0.159

 Acid detergent fiber

30.05 ± 2.04

29.34 ± 6.31

25.51 ± 8.32

0.246

 Acid detergent lignin

34.13 ± 3.28

31.30 ± 4.41

28.49 ± 5.76

0.253

 Gross energy

63.52 ± 1.81

61.80 ± 3.17

59.62 ± 1.72

0.196

Daily N balance [g/rabbit]

 Intake

3.98 ± 0.08a

3.60 ± 0.10ab

2.99 ± 0.23b

0.005

 Excretion with feces

1.15 ± 0.05

1.08 ± 0.07

0.90 ± 0.12

0.164

 Excretion with urine

0.72 ± 0.05a

0.68 ± 0.10ab

0.57 ± 0.11b

0.018

 Digestion

2.83 ± 0.04a

2.52 ± 0.10ab

2.09 ± 0.14b

0.003

 Retention

2.11 ± 0.11a

1.84 ± 0.10ab

1.52 ± 0.11b

0.042

N retention [%]

 Relative to N intake

53.01 ± 4.64

51.11 ± 4.57

50.84 ± 5.91

0.724

 Relative to N digested

74.56 ± 6.27

73.01 ± 6.04

72.73 ± 6.24

0.862

  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)