Published in Scientific Papers. Series D. Animal Science, Vol. LXVI, Issue 1
Written by Mirela CREŢU, Lorena DEDIU, Marian Tiberiu COADĂ, Săndița PLĂCINTĂ, Cristian RÎMNICEANU, Anca Nicoleta CORDELI (SĂVESCU)
The objective of the current study was to determine the effect of two fish stocking densities on the growth performance, development, and antioxidant capacity of kale (Brassica oleracea L. var. acephala) and arugula (Eruca vesicaria ssp. sativa) in an aquaponic system with common carp (Cyprinus carpio). The aquaponics system consists of six rearing units for fish and twelve units for plants, purple light-led lamps for plants (36 W), biological and mechanical filters, and pumps for water recirculation. Two fish stocking densities were used: 3.5 kg×m-3 and 7 kg×m-3, each replicated three times. For each treatment or fish stocking density, 15 kale seedlings (51 plants×m-2) and 15 arugula seedlings (51 plants×m-2) were planted. All treatments were done in triplicates. At the end of the trial, the fresh weight of the plants was measured, and the results showed that the stocking density of the common carp of 7 kg×m-3 resulted in higher production of kale and arugula by maintaining good water quality for the plant and fish.
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