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Table 2 Growth performance and feed utilization of mandarin fish fed the six experimental diets for 8 weeks

From: Effect of dietary protein and lipid level on growth, feed utilization, and muscle composition in golden mandarin fish Siniperca scherzeri

Diets

WG1

SGR2

DFI3

DPI4

FE5

PER6

Survival

P35L7

51.4 ± 7.3a

0.74 ± 0.08a

2.30 ± 0.03

0.81 ± 0.01a

31.5 ± 3.6a

0.90 ± 0.10a

99.0 ± 1.1

P45L7

79.3 ± 11.6b

1.04 ± 0.11b

2.49 ± 0.05

1.01 ± 0.02b

39.9 ± 3.8ab

0.98 ± 0.09ab

96.7 ± 1.9

P55L7

117.7 ± 4.7c

1.39 ± 0.04c

2.41 ± 0.12

1.11 ± 0.04c

55.0 ± 3.4c

1.19 ± 0.05b

97.0 ± 0.0

P35L14

62.4 ± 1.8ab

0.87 ± 0.02ab

2.38 ± 0.06

0.83 ± 0.02a

35.3 ± 0.4ab

1.01 ± 0.01ab

97.7 ± 2.2

P45L14

83.2 ± 10.9b

1.08 ± 0.10b

2.33 ± 0.08

0.94 ± 0.03b

44.7 ± 2.9b

1.11 ± 0.07ab

96.7 ± 1.9

P55L14

133.9 ± 17.7c

1.51 ± 0.13c

2.53 ± 0.03

1.16 ± 0.03c

56.1 ± 3.3c

1.23 ± 0.07b

95.7 ± 1.3

Two-way ANOVA (P value)

 Protein

<0.001

<0.001

0.163

<0.001

<0.001

0.019

0.619

 Lipid

0.216

0.199

0.890

0.912

0.196

0.160

0.983

 Protein × lipid

0.860

0.819

0.094

0.103

0.788

0.775

0.262

  1. Values are mean of triplicate groups and presented as mean ± SE. Values with different superscripts in the same column are significantly different (P < 0.05). The lack of superscript letter indicates no significant differences among treatments
  2. 1Weight gain (%) = [(final body weight − initial body weight)/initial body weight] × 100
  3. 2Specific growth rate (% day−1) = [(ln final body weight − ln initial body weight)/days] × 100
  4. 3Daily feed intake (%) = {feed intake/[(initial body weight + final body weight + dead fish weight) × days fed/2]} × 100
  5. 4Daily protein intake (%) = {protein intake/[(initial body weight + final body weight + dead fish weight) × days fed/2]} × 100
  6. 5Feed efficiency (%) = (wet weight gain/feed intake) × 100
  7. 6Protein efficiency ratio = wet weight gain/protein intake