Table 3
Mortality, standard length (SL), weight (W), total weight increment (TWI) reached at the end of the experiment and feed conversion ratio (FCR) obtained in all experimental groups of pikeperch fingerling: pikeperch with trainer fish and direct application of pelleted feed − PF (A); pikeperch with trainer fish and gradual addition of pelleted feed to natural food − PF + NF (B); pikeperch without trainer fish and direct application of pelleted feed − PF (C); pikeperch without trainer fish and gradual addition of pelleted feed to natural feed − PF + NF (D). Data are presented as mean ± standard deviation. Values in the same row with different superscripts differ significantly (α = 0.05).
| Parameter | Pikeperch with trainer fish | Pikeperch with trainer fish | ||
|---|---|---|---|---|
| A | B | C | D | |
| PF | PF + NF | PF | PF + NF | |
| Mortality (%) | 9.41 ± 3.80a | 9.65 ± 1.81a | 12.16 ± 2.46a | 7.63 ± 2.96a |
| SL (mm) | 46.11 ± 4.09a | 41.07 ± 3.37c | 42.92 ± 4.20b | 42.80 ± 3.86b |
| W (g) | 1.44 ± 0.38a | 1.09 ± 0.25c | 1.17 ± 0.32bc | 1.19 ± 0.32b |
| TWI (g) | 3252 ± 357a | 2130 ± 162b | 2352 ± 230b | 2603 ± 204b |
| FCR | 0.76 ± 0.07a | 1.13 ± 0.11b | 0.77 ± 0.08a | 1.07 ± 0.08b |
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