Research Article

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 1

Modified Hoagland medium.

CompoundConcentration (g·l−1)

MgSO4·7 H2O246
Ca(NO3)2·4 H2O236
NH4H2PO4136
KNO3101
H3BO32.86
MnCl2·4 H2O1.82
ZnSO4·7 H2O0.22
Na2MoO4·2 H2O0.09
CuSO4·5 H2O0.09
FeCl3·6 H2O0.484
EDTA iron(III) sodium salt1.5