Table 5.
The growth and feed utilization of turbot.
| Item | Control | SM | FPH |
|---|---|---|---|
| Initial body weight (g) | 47.00 ± 0.58 | 47.44 ± 0.99 | 48.67 ± 1.15 |
| Final body weight (g) | 77.36 ± 3.73 | 76.33 ± 2.12 | 80.33 ± 3.05 |
| Survival ratea (%) | 95.56 ± 1.11 | 84.44 ± 4.44 | 95.55 ± 2.22 |
| Weight gainb (%) | 64.61 ± 7.88 | 60.88 ± 3.20 | 65.01 ± 4.06 |
| Specific growth ratec (%/day) | 1.13 ± 0.11 | 1.08 ± 0.05 | 1.14 ± 0.05 |
| Feed intaked (%/day) | 1.59 ± 0.10 | 1.70 ± 0.02 | 1.80 ± 0.08 |
| Feed conversion ratioe | 1.57 ± 0.18 | 1.60 ± 0.05 | 1.63 ± 0.11 |
| Protein efficiency ratiof | 1.34 ± 0.06 | 1.21 ± 0.04 | 1.17 ± 0.09 |
| Protein productive valueg (%) | 23.42 ± 3.04 | 21.51 ± 3.04 | 18.70 ± 0.32 |
Note: Values are means and standard error of three replicate tanks. Values in the same row followed by different superscript letters are significantly different (p < 0.05) according to Tukeys' multiple comparison test.
Abbreviations: FPH, fish protein hydrolysate; SM, soybean meal.
aSurvival rate (%) = 100 × (final fish number/initial fish number).
bWeight gain (%) = 100 × (final body weight − initial body weight)/initial body weight.
cSpecific growth rate (%/day) = 100 × [ln (final body weight) − ln (initial body weight)]/feeding days.
dFeed intake (%/day) = 100 × total feed intake/[feeding days × (initial body weight + final body weight)/2].
eFeed conversion ratio = dry feed intake/body weight gain.
fProtein efficiency ratio = (final body weight − initial body weight)/dietary protein intake.
gProtein productive value (%) = 100 × (crude protein content of final body − crude protein content of initial body)/dietary protein intake.