Table 2 The growth performance of grass carp fed with different dietary protein

IBW, g

721.60 ± 1.60

720.80 ± 1.60

722.13 ± 1.85

720.00 ± 2.12

721.87 ± 3.03

720.53 ± 2.44

0.17

0.69

0.00

0.96

FBW, g

1176.00 ± 34.06^a

1233.99 ± 108.08^ab

1381.60 ± 56.30^c

1333.60 ± 96.64^bc

1327.02 ± 60.66^bc

1331.94 ± 27.76^bc

8.82

 < 0.05

5.59

 < 0.05

PWG, %

62.98 ± 4.94^a

71.20 ± 15.13^ab

91.34 ± 8.27^c

85.23 ± 13.50^bc

83.81 ± 7.65^bc

84.85 ± 3.26^bc

8.93

 < 0.05

5.58

 < 0.05

SGR, %/d

0.81 ± 0.05^a

0.89 ± 0.15^ab

1.08 ± 0.07^c

1.02 ± 0.12^bc

1.01 ± 0.07^bc

1.02 ± 0.03^bc

9.38

 < 0.01

5.46

 < 0.05

FI, g

993.85 ± 0.60^a

1043.83 ± 2.83^c

1233.27 ± 1.01^f

1141.44 ± 1.22^e

1065.50 ± 1.72^d

1004.09 ± 0.40^b

10.91

 < 0.01

40,066.6

 < 0.01

FE, %

45.72 ± 3.52^a

49.18 ± 10.50^ab

53.47 ± 4.66^ab

53.75 ± 8.46^ab

56.80 ± 5.47^ab

60.89 ± 2.56^b

9.99

 < 0.01

0.00

0.96