Table 2
Daily feed rations in grams (wet weight was used for natural feed) in four experimental set-ups used for pikeperch adaptation to commercial pelleted feed: pikeperch with trainer fish and direct application of pelleted feed (A); pikeperch with trainer fish and gradual addition of pelleted feed to natural food (B); pikeperch without trainer fish and direct application of pelleted feed (C); pikeperch without trainer fish and gradual addition of pelleted feed to natural feed (D). The proportion of pelleted feed (% of PF) in the total weight of applied feed is presented in groups where natural (NF) and pelleted feed (PF) was used.
| Day | Pikeperch with trainer fish | Pikeperch without trainer fish | ||||||
|---|---|---|---|---|---|---|---|---|
| A | B | C | D | |||||
| PF | NF | PF | % of PF | PF | NF | PF | % of PF | |
| 1 | 90 | 630 | 0 | 0 | 45 | 500 | 0 | 0 |
| 2 | 135 | 595 | 0 | 0 | 65 | 485 | 0 | 0 |
| 3 | 170 | 780 | 0 | 0 | 100 | 520 | 0 | 0 |
| 4 | 220 | 780 | 187.5 | 20 | 115 | 780 | 188 | 20 |
| 5 | 210 | 520 | 216 | 30 | 125 | 520 | 216 | 30 |
| 6 | 190 | 407 | 275 | 40 | 120 | 407 | 275 | 40 |
| 7 | 165 | 261 | 261 | 50 | 100 | 261 | 261 | 50 |
| 8 | 195 | 163 | 243 | 60 | 130 | 163 | 243 | 60 |
| 9 | 210 | 112 | 267 | 70 | 140 | 112 | 267 | 70 |
| 10 | 190 | 81 | 325 | 80 | 125 | 81 | 325 | 80 |
| 11 | 210 | 42 | 392 | 90 | 140 | 42 | 392 | 90 |
| 12 | 275 | 0 | 255 | 100 | 205 | 0 | 205 | 100 |
| 13 | 300 | 0 | 300 | 100 | 215 | 0 | 215 | 100 |
| 14 | 185 | 0 | 190 | 100 | 185 | 0 | 195 | 100 |
| Total feed amount (g) | 2745 | 4371 | 2911 | X | 1810 | 3871 | 2781 | X |
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