EFFECT OF HIGH STOCKING DENSITIES ON GROWTH AND SURVIVAL OF Litopenaeus vannamei IN FINAL GROWOUT PHASE, REARED IN BIOFLOC TECHNOLOGY (BFT) SYSTEM

Authors

  • Adriana Ferreira Silva Universidade Federal de Rio Grande
  • Gabriele Rodrigues Lara Universidade Federal de Rio Grande
  • Eduardo Cupertino Ballester de Carcinicultura, Universidade Federal do Paraná (UFPR), Palotina (PR),
  • Dariano Krumennauer Universidade Federal do Rio Grande
  • Paulo Cesar Abreu Universidade Federal do Rio Grande
  • Wilson Wasielesky Universidade Federal do Rio Grande

DOI:

https://doi.org/10.5216/cab.v14i3.10419

Keywords:

Aquaculture

Abstract

The aim of this study was to evaluate the effect of high stocking densities on survival, growth and feed conversion rates of Litopenaeus vannamei shrimp, in final growout phase, in a Biofloc Technology (BFT) culture system, keeping the same water parameters for all treatments. Shrimps (11.96 ± 1.14 g) were stocked in microcosms (0.50/m2 tanks), connected to a BFT system raceway. The study was carried out for 45 days.  The shrimp were stocked at densities of 150, 300, 450 and 600 shrimp/m2.  Bioflocs were collected for analysis of proximate composition. The results were submitted to one-way ANOVA, and differences were compared by Tukey test (? = 0.05). In T300 and T450, growth and survival were not affected by high stocking densities. The highest biomass reached (T450) was 5.1kg/m² and the best feed conversion rate was 1.54 in T150. The results of this study indicate that stocking densities in the proposed system can be high, but not exceeding 450 shrimp/m². Furthermore, even maintaining the same water parameters for all treatments, there was a negative effect between density and shrimp growth, confirming that this effect is behavioral.

KEYWORDS: Biofloc Technology; growth parameters; shrimp growth out.

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Author Biographies

Adriana Ferreira Silva, Universidade Federal de Rio Grande

Mestre em aquicultura pela Universidade Federal de Rio Grande

Gabriele Rodrigues Lara, Universidade Federal de Rio Grande

Biologa , formada pela Universidade Federal de Rio Grande

Eduardo Cupertino Ballester, de Carcinicultura, Universidade Federal do Paraná (UFPR), Palotina (PR),

Doutor em Oceanografia Biologica , Universidade Federal de Rio Grande

Dariano Krumennauer, Universidade Federal do Rio Grande

Mestre em aquicultura pela Universidade Federal de Rio Grande

Paulo Cesar Abreu, Universidade Federal do Rio Grande

Professor titular do Laboratório de Ecologia do Fitoplancton, Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG),

Wilson Wasielesky, Universidade Federal do Rio Grande

Professor titular do Laboratório de Maricultura, Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), CP: 474, Rio Grande (RS), 96201, Brasil

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Published

2013-09-27

How to Cite

SILVA, A. F.; LARA, G. R.; BALLESTER, E. C.; KRUMENNAUER, D.; ABREU, P. C.; WASIELESKY, W. EFFECT OF HIGH STOCKING DENSITIES ON GROWTH AND SURVIVAL OF Litopenaeus vannamei IN FINAL GROWOUT PHASE, REARED IN BIOFLOC TECHNOLOGY (BFT) SYSTEM. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 14, n. 3, p. 279–287, 2013. DOI: 10.5216/cab.v14i3.10419. Disponível em: https://revistas.ufg.br/vet/article/view/10419. Acesso em: 17 jul. 2024.

Issue

Vol. 14 No. 3 (2013)

Section

Animal Production

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