MARINE SHRIMP CULTURE WITH BIOFLOCS UNDER DIFFERENT PROTEIN LEVELS WITH AND WITHOUT PROBIOTIC

Authors

  • Fabiana Penalva de Melo UFRPE, Programa de Pós-Graduação em Recursos Pesqueiros e Aquicultura
  • Maria Gabriela Padilha Ferreira UFRPE, Programa de Pós-Graduação em Recursos Pesqueiros e Aquicultura
  • João Paulo Viana de Lima Instituto Agronômico de Pernambuco (IPA)
  • Eudes de Souza Correia Federal Rural University of Pernambuco image/svg+xml

DOI:

https://doi.org/10.1590/1983-21252015v28n422rc

Keywords:

Litopenaeus vannamei, Microbial Flocs, molasses, protein, zero water exchange.

Abstract

This study aimed to evaluate the culture of Litopenaeus vannamei marine shrimp fed with different protein levels diets in heterotrophic systems with and without probiotic addition. It was adopted a completely randomized design with 4x2 factorial arrangement, using four dietary protein levels (20, 25, 30 e 35% CP), as the first factor (P20, P25, P30, and P35), and probiotic addition in the water, as the second factor (P20Pro, P25Pro P30Pro e P35Pro). For this were used 24 fiberglass tanks (800 L working volume) stocked with 300 shrimp m-3 (initial weight 1.55±0.01 g). Water quality parameters were analyzed periodically and showed no significant differences, except nitrite that was influenced by the protein levels (P<0.05). After 50 culture days, shrimp final weight averaged 7.2±0.4 g (P≥0.05). The interaction of protein levels vs. probiotic addition influenced significantly (P<0.05) the survival (70.6 to 90.0%) and final biomass (1.3-2.0 Kg m-3). In Litopenaeus vannamei intensive culture with the utilization of biofloc as the supplemental food, it is possible to reduce the protein levels of feed from 35 to 25%, without compromising the shrimp growth performance and water quality of the culture.

Author Biographies

  • Fabiana Penalva de Melo, UFRPE, Programa de Pós-Graduação em Recursos Pesqueiros e Aquicultura
    Engenheira de Pesca pela UFRPE, Mestre e Doutoranda em Recursos Pesqueiros e Aquicultura
  • Maria Gabriela Padilha Ferreira, UFRPE, Programa de Pós-Graduação em Recursos Pesqueiros e Aquicultura
    Bióloga pela Universidade de Pernambuco, Mestre e Doutoranda em Recursos Pesqueiros e Aquicultura
  • João Paulo Viana de Lima, Instituto Agronômico de Pernambuco (IPA)
    Engenheiro de Pesca pela UFRPE e Doutor em em Recursos Pesqueiros e Aquicultura pela UFRPE
  • Eudes de Souza Correia, Federal Rural University of Pernambuco
    Professor Associado IV da UFRPE lotado no Departamento de Pesca e Aquicultura. Aquicultura.

Published

18-11-2015

Issue

Section

Fishery Engineering