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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