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Table 4 In vivo protein quality indices of raw and macerated African elemi pulp-based diets fed to rats

From: In-vivo protein quality assessment of macerated African elemi pulp eaten as masticatories in Eastern Nigeria

Quality index

Diets

AE0

AE15

AE30

AE45

NCD

RD

Carcass nitrogen (g) (CN)

7.71 ± 0.34c

7.39 ± 0.29c

7.66 ± 0.51c

8.14 ± 0.21c

6.01 ± 0.43a

10.42 ± 0.83b

Fecal nitrogen (g) (FN)

0.62 ± 0.16b

0.82 ± 0.19b

0.61 ± 0.08b

0.59 ± 0.10b

0.36 ± 0.02a

0.51 ± 0.25ab

Carcass weight (g) (CW)

115.09 ± 20.63ab

106.42 ± 11.51ab

112.43 ± 38.38ab

126.21 ± 29.52ab

85.55 ± 4.40a

142.68 ± 39.39b

Fecal dry weight (g) (FDW)

28.50 ± 1.38b

28.58 ± 3.85b

25.67 ± 3.88ab

26.83 ± 5.92ab

23.33 ± 0.76a

20.67 ± 9.07a

Protein efficiency ratio (PER)

2.03 ± 0.23c

2.16 ± 0.05c

2.15 ± 0.45c

2.28 ± 0.35c

1.11 ± 0.24a

2.67 ± 0.37b

Net protein utilization (NPU)

68.21 ± 4.89b

69.73 ± 5.56b

66.29 ± 18.97b

74.07 ± 4.83a

80.07 ± 7.26a

Apparent digestibility (AD)

85.46 ± 3.09c

82.90 ± 4.51c

85.71 ± 2.37c

86.80 ± 2.18c

69.59 ± 1.0a

92.63 ± 2.57b

True digestibility (TD)

94.04 ± 3.42a

91.97 ± 4.63a

94.15 ± 2.13a

94.86 ± 2.21a

97.82 ± 2.32a

Biological value (BV)

72.53 ± 3.68a

75.86 ± 9.40a

70.36 ± 9.52a

78.04 ± 3.48a

82.17 ± 5.78a

  1. Values are means and standard deviation (n = 5). Means in the same row with different superscript letter are significantly different from one another at 5% level (p ˂ 0.05)
  2. NCD negative control diet, RD reference diet (NutrendR)