Table 3.
Effects of Azadirachta indica on growth, feed utilization and survival indices of Oncorhynchus mykiss. Values with different superscript in the same raw indicate significant differences (p < 0.05).
| Attributes | Inclusion of neem A. indica leaf extract |
|||
|---|---|---|---|---|
| T1 (5%) | T2 (7%) | T3 (10%) | T4 (0%) | |
| Initial body weight (g) | 0.40 ± 0.01 | 0.40 ± 0.08 | 0.42 ± 0.11 | 0.41 ± 0.11 |
| Final body weight (g) | 46.10 ± 2.50b | 48.10 ± 0.50a | 47.28 ± 0.35a | 44.20 ± 3.10c |
| Weight gain (g) | 45.10 ± 0.80b | 47.70 ± 0.70a | 46.60 ± .80b | 43.80 ± 0.50c |
| Feed conversion ratio | 2.90 ± 0.0a | 1.90 ± 0.0d | 2.60 ± 0.0b | 2.10 ± 0.0c |
| Specific growth rate (%/day) | 3.62 ± 0.03 a | 3.68 ± 0.02a | 3.65 ± 0.01 a | 3.50 ± 0.02b |
| Hepatosomatic index (%) | 1.20 ± 0.15c | 1.30 ± 0.14b | 1.50 ± 0.14a | 1.10 ± 0.13c |
| Viscerosomatic index (%) | 3.40 ± 0.31b | 3.80 ± 0.21a | 3.70 ± 0.41a | 3.10 ± 0.21c |
| Fulton’s condition factor | 2.80 ± 0.0a | 2.90 ± 0.1a | 2.80 ± 0.0a | 2.20 ± 0.0b |
| Survival rate (%) | 100.00 ± 0.0 | 100.00 ± 0.0 | 98.00 ± 0.0 | 100.00 ± 0.0 |