Stocking densities in the larviculture of goldfish

Authors

  • Lucas Pedro GONÇALVES JUNIOR Programa de Pós-graduação em Ciências Veterinária, Universidade Federal do Esp-­­rito Santo (CCA-UFES)
  • Pedro Pierro MENDONÇA Programa de Pós-graduação em Ciências Veterinária, Universidade Federal do Esp-­­rito Santo (CCA-UFES) / Instituto Federal do Esp-­­rito Santo (IFES)
  • Samuel Louzada PEREIRA Programa de Pós-graduação em Ciência Animal, Universidade Estadual do Norte Fluminense
  • Marcelo Darós Matielo Programa de Pós-graduação em Ciências Veterinária, Universidade Federal do Esp-­­rito Santo (CCA-UFES)
  • Ismael Rafane da Silva AMORIM Instituto Federal do Esp-­­rito Santo (IFES)

Keywords:

Carassius auratus, production, performance, ornamental fish

Abstract

The effect of stocking density on the performance of post-larvae goldfish were evaluated. The experimental units were composed of plastic containers with a volume of one liter. Four hundred and fifteen post-larvae (average length of 4.11 ± 0.93 mm) were distributed in five different stocking densities: 5, 10, 15, 20 and 25 post-larvae L-1. The performance was evaluated after a 24 day period, by weight gain (GP), production L-1 (PA), specific growth rate (TCE), specific development rate (TDE) and flock uniformity (U). The survival and parameters of water quality were not affected by the densities studied (P<0.05). It was found a negative effect of increased stocking density in the development of post-larvae and uniformity, indicating that the density of 5 post-larvae L-1 is the most suitable for the larviculture of goldfish.

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Published

2018-11-17

Issue

Vol. 40 No. 4 (2014): BOLETIM DO INSTITUTO DE PESCA

Section

Scientific Article

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