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Table 9 Serum cytokine levels in 5th and 10th week

From: Soya saponin improves egg-laying performance and immune function of laying hens

 

Item

Control

50 ppm SS

500 ppm SS

P-value

5th week(27 weeks old, n = 6)

IL-2, pg/mL

72.05 ± 4.25

66.95 ± 4.88

70.11 ± 4.92

0.198

IL-6, pg/mL

83.24 ± 9.76

88.42 ± 14.52

91.17 ± 18.16

0.640

IL-4, pg/mL

20.08 ± 2.83a

23.45 ± 4.47ab

29.87 ± 8.57b

0.032

IFN-γ, pg/mL

62.47 ± 13.16

67.01 ± 10.64

82.20 ± 21.04

0.104

IFN-γ/IL-4

3.10 ± 0.42

2.93 ± 0.60

2.78 ± 0.16

0.450

10th week(32 weeks old, n = 8)

IL-2, pg/mL

70.98 ± 5.14

73.56 ± 8.82

74.66 ± 9.22

0.643

IL-6, pg/mL

101.90 ± 18.43

111.58 ± 25.05

120.06 ± 22.58

0.283

IL-4, pg/mL

21.21 ± 6.61a

28.99 ± 5.92b

26.02 ± 4.35ab

0.039

IFN-γ, pg/mL

55.04 ± 14.61a

66.13 ± 14.34ab

78.17 ± 12.35b

0.011

IFN-γ/IL-4

2.63 ± 0.24ab

2.33 ± 0.52a

3.04 ± 0.48b

0.012

  1. At the end of the 5th and 10th week of the trial, 6–8 birds from each treatment were selected to obtain wing vein blood and harvest serum. The levels of some cytokines in the serum were measured. The data in Table 9 different superscript letters indicate significant difference (P < 0.05); same superscript letters indicate no difference (P > 0.1), the same below