Stocking density and food restriction of piapara juvenile

Authors

  • André Fernando Nascimento GONÇALVES Programa de pós-graduação em Ciência e Tecnologia Animal, UNESP Dracena / UNESP Ilha Solteira
  • Natalia HA Programa de pós-graduação em Ciência e Tecnologia Animal, UNESP Dracena / UNESP Ilha Solteira
  • Jaqueline Dalbello BILLER-TAKAHASHI Grupo de Aquicultura da UNESP de Dracena
  • Leonardo Seiji SATO Curso de Zootecnia da UNESP de Dracena, Grupo de Aquicultura da UNESP de Dracena
  • Marcio Kazuaki KISHIMOTO Curso de Zootecnia da UNESP de Dracena, Grupo de Aquicultura da UNESP de Dracena
  • Leonardo Susumu TAKAHASHI Grupo de Aquicultura da UNESP de Dracena

Keywords:

management, Leporinus sp, compensatory growth

Abstract

The effects of stocking density and food restriction in juvenile piapara (Leporinus elongatus) were studied by two experiments. In the first, 88 piaparas juveniles were stocked in three densities (0.13, 0.20 and 0.40 fish L-1) for 70 days. Weight gain, average consumption, specific growth rate and feed conversion were evaluated. The experiment was conducted in completely randomized design, with three treatments (0.13, 0.20 and 0.40 fish L-1) and four replicates. In the second experiment, 84 fish were divided into three treatments (RBD, with 4 replicates): control group (daily food); FDS group (animals fed on weekends) and Res 21 group (animals subjected to food restriction for 21 days). Highest stocking density resulted highest biomass produced. Fish subjected to food restriction for 21 days and animals not fed on weekends group displayed full compensatory growth.

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Published

2018-11-16

Issue

Vol. 40 No. 3 (2014): BOLETIM DO INSTITUTO DE PESCA

Section

Short Communication

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