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Lab-scale periphyton-based system for fish culture Ciência Rural
Cavalcante,Davi de Holanda; Silva,Suzete Roberta da; Pinheiro,Paloma Damasceno; Martins,Ádila da Cunha; Sá,Marcelo Vinícius do Carmo e.
The present research aimed to assess a lab-scale model to study periphyton-based systems for fish culture. Twenty-five liters plastic aquaria were stocked with three Nile tilapia, Oreochromis niloticus, juveniles (0.77±0.09g; 12 fish m-2) for 6 weeks in a 2x2 factorial design. Small plastic bottles were placed in some aquaria for periphyton development. Two feeding regimes were employed: "full-fed" (standard feeding rates were fully adopted) and "half-fed" (50% of standard feeding rates). Growth performance and limnological variables were observed in each aquarium. There werefive replicates per treatment. Fish have fed actively on periphyton, especially in the half-fed aquaria. The placement of periphyton bottles had no significant effects on the water...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Periphyton; Tilapia; Feeding restriction; Fish culture.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001200022
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