Published in Scientific Papers. Series D. Animal Science, Vol. LXIV, Issue 2
Written by Mioara COSTACHE, Mihail COSTACHE, Nino MARICA, Daniela RADU, Carmen Georgeta NICOLAE
The growth technologies for the complex exploitation of the aquatic basins from the traditional fish farms are regarding the location of some intensive growth modules such as battery of net pens (total surface/module 2000 m2) or floating cages (total volume/module 576 m3), within fish ponds. These growth modules allow obtaining additional quantities of fish on the same unit area and raising valuable species of different ages like catfish, carp, sturgeon, tilapia, etc, through the efficient exploitation of aquatic bioresources. For administered feed, FCR was in the range of 1.5-2.5 kg of feed/kg fish weight gain. Applying the growth technology into combined system it is possible to achieve a total production of 2,400 - 2,800 kg/ha (60-65% achieved in the host pond and 35-40% in the battery of net pens or floating cages). Bioeconomic studies demonstrates the profitability of the combined system and the developed technology, obtaining a profit rate of 1.26 for the pond-net pens system, respectively 1.56 for the floating cages-pond system.
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