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|
|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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