Performance of cobia grown in brackish water and fed with different feeding rates

Authors

  • Gitonilson Antonio Moreira Tosta Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Avenida Adhemar de Barros, no 500, Ondina, CEP 40170-110 Salvador, BA.
  • Ricardo Castelo Branco Albinati Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Avenida Adhemar de Barros, no 500, Ondina, CEP 40170-110 Salvador, BA.
  • Gleidson Giordano Pinto de Carvalho Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Avenida Adhemar de Barros, no 500, Ondina, CEP 40170-110 Salvador, BA
  • Jaciane Vergne de Carvalho Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Avenida Adhemar de Barros, no 500, Ondina, CEP 40170-110 Salvador, BA.
  • José Jerônimo de Souza Filho Bahia Pesca, Avenida Adhemar de Barros, no 967, Ondina, CEP 40170-110 Salvador, BA.
  • Fabíola Rios Vasconcelos Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Avenida Adhemar de Barros, no 500, Ondina, CEP 40170-110 Salvador, BA.
  • Vanessa Villanova Kuhnen Instituto de Pesca, Programa de Pós- Graduação em Aquicultura e Pesca, Avenida Bartolomeu de Gusmão, no 192, Ponta da Praia, CEP 11045-401 Santos, SP.
  • Eduardo Gomes Sanches Agência Paulista de Tecnologia dos Agronegócios, Instituto de Pesca, Núcleo de Pesquisa e Desenvolvimento do Litoral Norte, Rua Joaquim Lauro Monte Claro Neto, no 2.275, Itaguá, CEP 11680-000 Ubatuba, SP.

DOI:

https://doi.org/10.1590/S1678-3921.pab2019.v54.26572

Keywords:

Rachycentron canadum, feeding management, hepatosomatic index, mariculture, shrimp culture

Abstract

The objective of this work was to evaluate different feeding rates on the productive performance of cobia (Rachycentron canadum) grown in brackish waters. For the experiment, 1,600 juveniles were distributed in 16 enclosures installed in an estuarine pond. Four different feeding rates were evaluated: 1, 3, 5, and 7% live weight (LW) per day. The following performance parameters were assessed: survival, final biomass, specific growth rate, daily weight gain, apparent feed conversion, protein efficiency rate, lipid efficiency rate, and hepatosomatic index. Survival was greater than 80% at all feeding rates. The most efficient feed conversion rate was obtained with the feeding rate of 5% LW per day, which also resulted in better values for the hepatosomatic index. The rate of 5% LW per day provides a better productive performance for cobia in brackish waters.

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Published

2019-09-25

How to Cite

Tosta, G. A. M., Albinati, R. C. B., Carvalho, G. G. P. de, Carvalho, J. V. de, Souza Filho, J. J. de, Vasconcelos, F. R., … Sanches, E. G. (2019). Performance of cobia grown in brackish water and fed with different feeding rates. Pesquisa Agropecuaria Brasileira, 54(X), e00696. https://doi.org/10.1590/S1678-3921.pab2019.v54.26572

Issue

V.54, Jan./Dec., 2019 :Continuos publication

Section

AQUACULTURE