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DOI:
https://doi.org/10.5007/%25xAbstract
During winter in the North of São Paulo State four nursery systems for Macrobrachium rosenberguii prawn were evaluated. Newly-metamorphosed post larvae were stoched in four different nursery systems: Two indoor and two outdoor. The indoor nursery was constituted of the fiber cemente cages with addition of the fiber cemente cages with addition of substrates and aeration and they were stocked with densities of 5,500 and 6,300 prawns. M -³ respectively and one of them have a hearer. Eight concrete tanks covered by a greenhouse and an earthen pond without cover constituted the outdoor nurseries. The juvenile prawns were harvested after 35 to 65 days. Prawn growth in winter nurseries without an efficient heating system was extremely reduced. Their weight ranged from 30 to 300 mg. The juvenile production costs ranged from US$ 34,00 to US$ 106,00. The outdoor nursery system using earthen pond was more suitable, with higher survival and lower costs.Downloads
Published
1995-01-01
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