Table 3. Growth and biometry of the juvenile pearl gentian grouper fed with diets containing various concentrations of FM replaced with SPC.
Items | Diets | |||||
---|---|---|---|---|---|---|
SPC0 | SPC15 | SPC 30 | SPC45 | SPC60 | SPC75 | |
Wi (g) | 7.97 ± 0.00 | 7.98 ± 0.04 | 8.04 ± 0.03 | 8.01 ± 0.01 | 8.02 ± 0.01 | 8.01 ± 0.01 |
Wf (g) | 41.29 ± 0.66b | 46.12 ± 0.78a | 39.34 ± 0.54c | 34.23 ± 0.89d | 26.14 ± 0.95e | 19.53 ± 0.32f |
BWG (g) | 33.32 ± 0.60b | 38.14 ± 0.90 a | 31.30 ± 0.60c | 26.22 ± 0.98 d | 18.12 ± 0.95e | 11.52 ± 0. 32f |
WGR (%) | 3.76 ± 0.13b | 4.53 ± 0.33a | 3.62 ± 0.12b | 3.05 ± 0.29c | 1.88 ± 0.17d | 1.04 ± 0.06e |
SGR (% d−1) | 3.42 ± 0.02b | 3.72 ± 0.09a | 3.24 ± 0.06c | 2.76 ± 0.12d | 1.92 ± 0.13e | 0.78 ± 0.07f |
PER | 1.69 ± 0.07c | 2.32 ± 0.15a | 2.21 ± 0.09ab | 2.04 ± 0.17b | 1.62 ± 0.14c | 1.11 ± 0.07d |
DFI (% d−1) | 3.98 ± 0.11a | 3.07 ± 0.13bc | 2.95 ± 0.08c | 3.07 ± 0.15bc | 3.05 ± 0.12bc | 3.09 ± 0.07bc |
FCR | 1.27 ± 0.05b | 0.93 ± 0.06a | 0.96 ± 0.04a | 1.07 ± 0.09a | 1.32 ± 0.12b | 1.96 ± 0.13c |
Survival % | 91.11 ± 1.92bc | 95.55 ± 3.85ab | 94.44 ± 1.93ab | 96.67 ± 3.34a | 88.89 ± 1.93cd | 85.56 ± 1.93d |
Biometric indices | ||||||
CF (g cm−3) | 1.73 ± 0.13a | 1.65 ± 0.14ab | 1.61 ± 0.19ab | 1.61 ± 0.14ab | 1.56 ± 0.15b | 1.41 ± 0.20c |
HSI (%) | 2.97 ± 0.38a | 2.47 ± 0.58ab | 2.17 ± 0.56b | 2.58 ± 0.54ab | 2.46 ± 0.61ab | 2.12 ± 0.61b |
IPR (%) | 1.41 ± 0.41b | 1.68 ± 0.59ab | 2.03 ± 0.58a | 1.78 ± 0.33ab | 1.69 ± 0.52ab | 0.93 ± 0.57c |
Values (mean ± SD, n = 3) within the same row with different letters are significantly different (P < 0.05). Absence of letters indicates no significant difference between treatments. Wi: initial weight; Wf: final weight of fish; BWG: average body weight gain; WGR: Weight gain ratio; SGR: specific growth rate, survival; PER: protein efficiency ratio; DFI: Daily feed intake; FCR: feed conversion ratio; SR: survival rate; CF: Condition factor; HIS: hepatosomatic index; IPR: intraperitoneal ratio.