Stocking density during the initial grow-out phase of tambatinga in net pens.

• Autor(a) principal: RODRIGUES, A. P. O.
• Data de Publicação: 2016
• Outros Autores: LIMA, A. F., MACIEL, P. O., SANTOS, P. R. R. dos, FLORES, R. M. V., SILVA, A. P. da
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1058436
• topic: Colossoma macropomum; Tambaqui; Peixe; Economic analysis; Growth performance; Fish culture; Piaractus brachypomus

The aim of this study was to determine the most adequate stocking density for tambatinga during the initial grow-out phase in net pens, considering fish growth, health, and financial aspects. Three stocking densities (400, 500, and 600 fish m-3) were evaluated for 60 days in a completely randomized design (n=4). There were no significant differences among the stocking densities for growth performance parameters, but yield was higher in the density of 600 fish m-3 (3,909.43±397.79kg m-3) compared to 400 fish m-3 (2,656.43±665.45kg m-3). Glucose, hematocrit, and total plasma proteins levels did not differ among treatments. The production was economically feasible for the three stocking densities. However, the density of 600 fish m-3 showed the highest profit. According to the results, 600 fish m-3 is the most adequate density for the initial grow-out phase of tambatinga in net pens.