<b>Performance of different Nile tilapia (<em>Oreochromis niloticus</em>) strains, during sex reversal phase</b> - DOI: 10.4025/actascianimsci.v26i3.1794

  • Leonardo Tachibana UNESP
  • Newton Castagnolli UNESP
  • Luiz Edivaldo Pezzato UNESP
  • Margarida Maria Barros UNESP
  • Juliana de Barros Valle UNESP
  • Márcia Regina Siqueira UNESP
DOI: https://doi.org/10.4025/actascianimsci.v26i3.1794

Abstract

This experiment aimed at comparing growth performance and survival of four Nile tilapia (Oreochromis niloticus) strains called CESP, Pernambuco, Santa Catarina and Thailand in sex reversal phase. Thirty Nile tilapia fries were stocked in 4.5L aquaria (6.66 fries/L) with recirculation system and water temperature control. The fishes were fed with ration containing 60mg/kg of 17 alpha-methyltestosterone, six times a day during 30 days. The experimental design was randomized with four treatments (strains) and seven replications. Total length, weight gain, specific growth rate, survival rate and sexual reversion efficiency were submitted to Anova, means compared by Tukey test and sex reversion by qui-square means. Santa Catarina and Pernambuco strains demonstrated better sex reversion efficiency when compared with CESP and Thailand. Thailand and Santa Catarina strains showed better values of survival, growth performance and specific growth rate than CESP and Pernambuco strains. Thus, Thailand and Santa Catarina strains are more indicated to rear in recirculation system during sex reversal phase.

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Author Biography

Luiz Edivaldo Pezzato, UNESP
Possui graduação em Zootecnia pela Universidade Estadual Paulista Júlio de Mesquita Filho (1979) , mestrado em Nutrição Animal pela Universidade de São Paulo (1984) e doutorado em Zootecnia pela Universidade Estadual Paulista Júlio de Mesquita Filho (1990) . Atualmente é ProfessorAssistente Doutor da Universidade Estadual Paulista Júlio de Mesquita Filho, Revisor de periódico da Acta Scientiarum (UEM), Revisor de periódico da Pesquisa Agropecuária Brasileira, Revisor de periódico da Ciência Rural, Revisor de periódico da Boletim do Instituto de Pesca, Revisor de periódico da Ciência Animal Brasileira (UFG), Membro de corpo editorial da Veterinária e Zootecnia e Membro de corpo editorial da Revista da Sociedade Brasileira de Zootecnia. Tem experiência na área de Zootecnia , com ênfase em Nutrição e Alimentação Animal. Atuando principalmente nos seguintes temas: digestibilidade, velocidade de trânsito gastrintestinal, valor nutritivo de alimentos, tilápia do Nilo, proteína digestível e energia digestível Currículo Lattes
Published
2008-04-08
How to Cite
Tachibana, L., Castagnolli, N., Pezzato, L. E., Barros, M. M., Valle, J. de B., & Siqueira, M. R. (2008). <b>Performance of different Nile tilapia (<em>Oreochromis niloticus</em>) strains, during sex reversal phase</b&gt; - DOI: 10.4025/actascianimsci.v26i3.1794. Acta Scientiarum. Animal Sciences, 26(3), 305-311. https://doi.org/10.4025/actascianimsci.v26i3.1794
Issue
Vol 26 No 3 (2004)
Section
Animal Science

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