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Table 4 Effects of cottonseed meal on antioxidant capacity in the liver of goslings at 28 d of age

From: Effects of cottonseed meal on growth performance, liver redox status, and serum biochemical parameters in goslings at 1 to 28 days of age

Item

Controla

CSM25

CSM50

CSM75

CSM100

SEM

P-value

Treatment

Linear

Quadratic

Superoxide radical (U/mg protein)

1456.05

1374.75

1373.94

1382.44

1347.38

24.111

0.709

0.245

0.630

Hydroxyl radical (U/g protein)

184.25

151.10

126.79

134.94

116.42

7.182

0.016

0.002

0.239

Superoxide dismutase (U/mg protein)

236.83

231.67

232.23

227.85

213.66

2.990

0.126

0.018

0.336

Catalase (U/mg protein)

33.54

27.91

26.82

20.23

17.75

1.548

0.003

 < 0.001

0.939

Reduced glutathione (mg/g protein)

67.45

62.98

65.64

69.41

62.22

4.271

0.986

0.902

0.911

Glutathione reductase (U/mg protein)

7.31

6.86

5.76

6.61

6.85

0.562

0.945

0.782

0.512

Glutathione peroxidase (U/mg protein)

205.35

177.87

186.00

186.84

165.64

3.497

0.002

0.001

0.912

Glutathione S-transferase (U/mg protein)

50.65

50.84

53.84

56.19

52.77

1.089

0.495

0.229

0.400

  1. aControl group was fed a corn-soybean meal basal diet; CSM, cottonseed meal; CSM25, CSM50, CSM75, and CSM100 indicate that 25, 50, 75, and 100% of the protein content provided by soybean meal in the control diet was replaced with CSM respectively. SEM Standard errors of the mean