Table 3. Data on growth, feed intake and nutrient utilization of the trout during the 25-day V-challenge.
| Family | C1 | C2 | C3 | P-value (2-way ANOVA) | ||||||
| Nutritional history | M | V | M | V | M | V | SEM | Fam | N Hist | FxNH |
| Growth parameters (g ind−1) | ||||||||||
| Initial body weight | 33,5 | 33,8 | 36,1 | 34,6 | 38,7 | 42,1 | 0,70 | 0,000 | 0,103 | 0,001 |
| Final body weight | 46,6 | 57,0 | 61,3 | 65,2 | 45,3 | 55,9 | 1,8 | 0,000 | 0,001 | 0,299 |
| Protein gain | 2,07 | 3,59 | 4,08 | 4,72 | 1,32 | 2,60 | 0,29 | 0,000 | 0,003 | 0,510 |
| Lipid gain | 1,92 | 3,56 | 4,20 | 5,48 | 0,79 | 2,34 | 0,37 | 0,000 | 0,001 | 0,910 |
| Energy gain | 122 | 218 | 264 | 323 | 69,2 | 176 | 20,7 | 0,000 | 0,001 | 0,643 |
| Voluntary feed intake (FI) | ||||||||||
| FI (g ind−1) | 15,4 | 23,0 | 24,9 | 29,2 | 9,5 | 15,9 | 1,6 | 0,000 | 0,005 | 0,760 |
| FI (% BW d−1) | 1,52 | 2,02 | 2,03 | 2,33 | 0,89 | 1,29 | 0,12 | 0,000 | 0,011 | 0,834 |
| FI (mg kg BW−0.8 d−1) | 8,1 | 11,2 | 11,5 | 13,3 | 4,7 | 7,1 | 0,7 | 0,000 | 0,005 | 0,769 |
| Nutrient and energy utilization efficiency (% intake) | ||||||||||
| Protein retention | 28,4 | 33,5 | 35,1 | 34,6 | 29,3 | 35,1 | 0,8 | 0,069 | 0,017 | 0,117 |
| Lipid retention | 75,5 | 98,3 | 107,9 | 119,5 | 43,9 | 90,8 | 6,2 | 0,001 | 0,003 | 0,203 |
| Energy retention | 37,8 | 46,0 | 51,3 | 53,9 | 34,5 | 53,3 | 1,9 | 0,005 | 0,001 | 0,045 |
Data represent treatment means according to their early nutritional history (M or V) and family (C1, C2, C3). P-values (2-way ANOVA) show the significance of the effects of nutritional history (N Hist), family (Fam) and their interaction (FxNH).