Partial Replacement of Fishmeal with Duckweed (Spirodela polyrhiza) in Feed for Two Carnivorous Fish Species, Eurasian Perch (Perca fluviatilis) and Rainbow Trout (Oncorhynchus mykiss)
Table 8
Initial and final whole-body composition of Eurasian perch (N = 4).
Final fish fed with
value
Initial fish
Control
DWD12
DWD24
DWD35
DWF12
DWF24
DWF35
SEM
DWD
DWF
Moisture (%)
73.5
74.2
74.7
72.5
74.2
75.6
74.3
75.7
0.33
0.908 (0.577)
0.023 (0.967)
Crude protein (g·100 g−1 FM
16.4
17.2
17.0
17.7
16.1
16.4
17.2
16.1
0.17
0.802 (0.238)
0.417 (0.154)
Crude lipids (g·100 g−1 FM)
6.18
4.50
3.65
4.45
2.94
3.36
3.94
3.45
0.19
<0.001 (0.507)
<0.001 (0.457)
Crude ash (g·100 g−1 FM)
3.56
4.00
4.10
4.60
4.29
3.98
4.35
4.37
0.065
0.001 (0.208)
<0.001 (0.009)
Contrast analysis between initial and final fish = value; contrast analysis between control and duckweed fed fish = ( value).
