Table 3.
Growth performance of rainbow trout fingerlings fed diets with soy protein isolate and Spirulina powder as protein sources and the addition of different ratios of taurine:methionine. Each value represents the mean of three replicate groups±±standard error. Columns with different letters differ significantly (P<0.05).
| Diets | FW (g) | WGa (%) | SGRb (%/day) | TL (cm) | Kc |
|---|---|---|---|---|---|
| T0/M100 | 1.8±0.2ac | 177±21a | 1.4±0.1a | 5.4±0.1a | 1.2±0.02 |
| T25/M75 | 1.9±0.2ab | 243±26a | 1.7±0.1b | 5.5±0.1a | 1.1±0.03 |
| T50/M50 | 2.1± 0.1ab | 313±25b | 2.0±0.08bc | 5.6±0.1a | 1.2±0.02 |
| T75/M25 | 2.4±0.1b | 359±27b | 2.1±0.09c | 5.6±0.1a | 1.1±0.01 |
| T100/M0 | 1.4±0.1c | 181±20a | 1.5±0.09a | 4.7±0.1b | 1.2±0.03 |
| T0/M0 | 1.5±0.1c | 232±19a | 1.2±0.06a | 5.1±0.1ab | 1.1±0.05 |
| Comm | 2.0±0.2ac | 302±30b | 1.9±0.1bc | 5.5±0.1a | 1.2±0.03 |
a
Weight gain =((Final weight – initial weight)/initial weight) *100.
b
Specific growth rate =((ln final weight – ln initial weight)/70) *100.
c
Condition factor =(weight/length) *100,000.