| Parameters |
TCLE0 |
TCLE25 |
TCLE50 |
TCLE75 |
TCLE100 |
| Initial body weight (g/snail) |
0.11 ± 0.01 |
0.11 ± 0.01 |
0.11 ± 0.01 |
0.11 ± 0.01 |
0.11 ± 0.01 |
| Final body weight (g/snail) |
2.84 ± 0.06 |
3.00 ± 0.08 |
3.31 ± 0.07 |
4.19 ± 0.11 |
4.91 ± 0.09 |
| Body weight gain (g/snail) |
2.74 ± 0.06a |
2.90 ± 0.08a |
3.21 ± 0.07b |
4.09 ± 0.05c |
4.81 ± 0.09d |
| Absolute growth (g mo-1) |
0.55 ± 0.01a |
0.58 ± 0.01a |
0.64 ± 0.01b |
0.82 ± 0.01c |
0.96 ± 0.02d |
| Specific growth rate (% day-1) |
2.16 ± 0.01a |
2.19 ± 0.01a |
2.27 ± 0.01b |
2.42 ± 0.01c |
2.53 ± 0.01d |
| Total food intake (g) |
1110 ± 5.81 |
1121 ± 8.04 |
1124 ± 13.13 |
1156 ± 8.45 |
1187 ± 10.08d |
| Food conversion rate |
1.34 ± 0.05a |
1.22 ± 0.04b |
1.17 ± 0.02b |
0.87 ± 0.03c |
0.99 ± 0.02 |
| Protein efficiency ratio |
1.65 ± 0.07a |
1.66 ± 0.02a |
1.89 ± 0.08b |
2.35 ± 0.06c |
2.71 ± 0.07d |
| Final survival rate (%) |
94.2 ± 1.63 |
94.2 ± 1.19 |
94.3 ± 2.44 |
94.6 ± 1.23 |
94.4 ± 1.01 |
|
Remarks:
TCLE0=Fishmeal 100% and tuna-cooking liquid effluent 0%
TCLE25=Fishmeal 75% and tuna-cooking liquid effluent 25%
TCLE50=Fishmeal 50% and tuna-cooking liquid effluent 50%
TCLE75=Fishmeal 25% and tuna-cooking liquid effluent 75%
TCLE100=Fishmeal 0% and tuna-cooking liquid effluent 100%
Value within the same column followed by different letter superscripts were significantly different (P<0.05).
Values are means of three replicates per treatment. |
| Table 2: Growth performance of hatchery-reared juvenile B. areolata fed experimental diets containing 5 levels of tuna-cooking liquid effluent for 150 days. Values within
the same row with different superscripts are significantly different (P<0.05) |
