Table 7 Effects of methionine on superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), glutathione peroxidase (GPx), glutathione reducase (GR) activities and glutathione (GSH) contents in the hepatopancreas and intestine of sub-adult grass carp ¹

85.06 ± 6.35^a

96.33 ± 8.17^b

109.44 ± 4.24^c

97.08 ± 4.47^b

95.10 ± 6.64^b

29.91 ± 2.75^bc

28.57 ± 2.40^b

22.03 ± 2.23^a

27.32 ± 0.97^b

32.08 ± 3.44^c

57.57 ± 2.39^d

28.52 ± 2.45^b

23.22 ± 2.31^a

20.79 ± 1.50^a

26.27 ± 1.72^b

1123.5 ± 67.1

1126.8 ± 53.8

1152.7 ± 62.8

1168.2 ± 39.4

1168.0 ± 57.8

3.93 ± 0.35^a

7.73 ± 0.43^c

8.21 ± 0.72^c

4.50 ± 0.41^ab

4.68 ± 0.38^b

7.11 ± 0.40^ab

9.11 ± 0.53^c

8.77 ± 0.61^c

7.12 ± 0.32^ab

7.28 ± 0.32^b

21.32 ± 1.65^a

25.52 ± 1.27^b

29.83 ± 2.41^c

26.13 ± 2.01^b

25.65 ± 1.20^b

12.80 ± 1.35

14.02 ± 0.93

13.27 ± 0.37

13.48 ± 1.03

12.62 ± 1.2

14.80 ± 0.85^b

14.88 ± 1.30^b

12.84 ± 1.26^a

14.08 ± 1.20^ab

13.10 ± 1.28^a

85.41 ± 8.12^a

107.28 ± 11.02^b

101.91 ± 10.68^b

89.68 ± 9.60^a

80.54 ± 6.69^a

15.47 ± 1.36^a

23.81 ± 2.29^b

40.44 ± 3.90^c

26.51 ± 2.28^b

25.67 ± 2.39^b

0.63 ± 0.07^a

2.82 ± 0.16^e

3.70 ± 0.24^f

2.51 ± 0.11^d

2.31 ± 0.10^c