Growth and stress of dourado cultivated in cages at different stocking densities

Authors

  • Neiva Braun Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Departamento de Aquicultura
  • Alcir Luiz Dafre Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Departamento de Bioquímica
  • Ronaldo Lima de Lima Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Departamento de Aquicultura
  • Luis Fernando Beux Aquática Consultoria e Assessoria
  • Fernanda Franciele Brol Aquática Consultoria e Assessoria
  • Alex Pires de Oliveira Nuñer Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Departamento de Aquicultura

DOI:

https://doi.org/10.1590/S1678-3921.pab2013.v48.11429

Keywords:

Salminus brasiliensis, glucose, hematocrit, hemoglobin, lactate

Abstract

The objective of this work was to evaluate the growth and the stress levels of juvenile dourado (Salminus brasiliensis) cultivated in cages. Fish stocked at densities of 15 (D15) and 30 (D30) fish per square meter were evaluated in a completely randomized design with three replicates. Fish were fed twice a day with extruded ration (42% crude protein). Density influenced only biomass and daily food intake, and glucose and lactate concentrations increased over time. D15 and D30 did not influence the growth of dourado. However, the increase of glucose and lactate levels over time indicates that cultivation in cages is a stressful condition for this species.

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Published

2013-10-31

How to Cite

Braun, N., Dafre, A. L., Lima, R. L. de, Beux, L. F., Brol, F. F., & Nuñer, A. P. de O. (2013). Growth and stress of dourado cultivated in cages at different stocking densities. Pesquisa Agropecuaria Brasileira, 48(8), 1145–1149. https://doi.org/10.1590/S1678-3921.pab2013.v48.11429

Issue

v.48, n.8, ago. 2013: Thematic Issue Aquaculture

Section

SCIENTIFIC NOTES