Table 1 Growth performance and feed utilization efficiency of European sea bass fed the experimental diets.

From: Gut microbiota dynamics in carnivorous European seabass (Dicentrarchus labrax) fed plant-based diets

Diets1

CTR

SBM

RSM

SFM

Final body weight (g)

73.4 ± 5.2

70.0 ± 2.6

73.9 ± 4.2

71.4 ± 0.9

Daily growth index2

2.07 ± 0.22

1.93 ± 0.11

2.10 ± 0.18

1.99 ± 0.04

Feed intake3 (g kg−1ABW day−1)

17.7 ± 1.4

19.8 ± 1.5

18.4 ± 1.6

20.7 ± 0.3

Feed efficiency4

1.01 ± 0.11

0.85 ± 0.06

0.93 ± 0.16

0.82 ± 0.05

Protein efficiency ratio5

2.15 ± 0.24

1.82 ± 0.13

2.02 ± 0.35

1.78 ± 0.12

N Intake3 (g kg−1ABW day−1)

1.22 ± 0.09

1.35 ± 0.10

1.25 ± 0.11

1.41 ± 0.02

  1. Values presented as means ± standard deviation (± SD) (n = 3 per treatment pooled from 6 fish).
  2. 1CTR, control fishmeal based diet; SBM, soybean meal based diet; RSM, rapeseed meal based diet; SFM, sunflower meal based diet.
  3. 2DGI: ([final body weight1/3 − initial body weight1/3]/time in days) × 100.
  4. 3ABW: average body weight (initial body weight + final body weight)/2.
  5. 4Feed efficiency (FE) = (wet weight gain/dry feed intake).
  6. 5PER: (wet weight gain/crude protein intake).
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