| 摘要 |
The present invention relates to a method for commercial edible fish rearing of Euro-asiatic pike-perch, Stitzostedion lucioperca. By means of the method the intestinal system of the pike-perch is made to accept and to assimilate the energy in a dry feed. This is done in that mature, fertilised pike-perch spawn is released into a hatching tank containing rotifera, where it is allowed to hatch, following which a smaller quantity of Cladocera and Copepoda is added to the hatching tank. The pike-perch is thereafter allowed to feed in the hatching tank, initially on rotifera and then on Cladocera and Copepoda, until the pike-perch larvae have left the larva stage and passed to a fry stage and reached a length of approximately 25-35 mm, following which the fry are transferred to a rearing tank. In the rearing tank accustomisation to dry feed is begun, following which rearing to a stage at which the fish are ready for killing is undertaken with dry feed as the sole source of nutrition for the fish. |
