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Table 3 Growth performance, feed utilization efficiency, and morphological parameters of mandarin fish fed the four experimental diets for 12 weeks

From: Total replacement of dietary fish oil with alternative lipid sources in a practical diet for mandarin fish, Siniperca scherzeri, juveniles

  Experimental diets
FO LO SO Lard
IBW1 1.8 ± 0.02 1.8 ± 0.02 1.7 ± 0.01 1.8 ± 0.02
FBW2 11.6 ± 0.3 10.9 ± 0.3 10.3 ± 0.03 10.7 ± 0.4
WG3 549 ± 20 524 ± 18 503 ± 1 499 ± 13
SGR4 2.23 ± 0.04 2.18 ± 0.04 2.14 ± 0.00 2.13 ± 0.03
DFI5 2.54 ± 0.10a 2.50 ± 0.06a 2.81 ± 0.02b 2.72 ± 0.04ab
DPI6 1.44 ± 0.06 1.42 ± 0.03 1.57 ± 0.01 1.53 ± 0.02
FE7 69.1 ± 3.2 69.1 ± 2.3 61.4 ± 0.8 62.5 ± 1.2
PER8 1.44 ± 0.06 1.45 ± 0.04 1.31 ± 0.01 1.34 ± 0.02
Survival (%) 98.7 ± 1.33 97.3 ± 1.33 98.7 ± 1.33 98.7 ± 1.33
CF9 1.14 ± 0.11 1.41 ± 0.06 1.17 ± 0.02 1.14 ± 0.11
HSI10 2.06 ± 0.10 3.04 ± 0.57 2.47 ± 0.28 2.24 ± 0.09
VSI11 9.93 ± 0.73 10.42 ± 0.50 9.65 ± 0.74 8.95 ± 0.30
  1. Values are mean of triplicate groups and presented as mean ± SE. Values with different superscripts in the same row are significantly different (P < 0.05). The lack of superscript letter indicates no significant differences among treatments
  2. FO fish oil, LO linseed oil, SO soybean oil
  3. 1Initial mean body weight (g)
  4. 2Final mean body weight (g)
  5. 3Weight gain (%) = [(final bodyweight – initial bodyweight)/initial body weight] × 100
  6. 4Specific growth rate (%/day) = [( ln final bodyweight – ln initial bodyweight]/days] × 100
  7. 5Daily feed intake (%) = {total dry feed consumed (g)/[(initial fish weight + final fishweight + dead fishweight) × days/2]} × 1006Daily protein intake (%) = {total protein consumed (g)/[(initial fishweight + final fishweight + dead fishweight) × days/2]} × 100
  8. 7Feed efficiency (%) = (wet weight gain (g)/total dry feed consumed (g)) × 100
  9. 8Protein efficiency ratio = wet weight gain (g)/total protein consumed (g)
  10. 9Condition factor (%) = [fish body weight/(total length of fish) (cm)3] × 100
  11. 10Hepatosomatic index (%) = (liver weight (g)/fish body weight) × 100
  12. 11Viscerosomatic index (%) = (viscera weight (g)/fish body weight) × 100
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