<b>Masculinizaton of Nile tilápia fries (<em>Oreochromis niloticus</em>) through bath immersion and androgen dissolved in dimethilsulfoxide (DMSO) solution</b> - DOI: 10.4025/actascianimsci.v26i2.1867

  • Robie Allan Bombardelli UNOESTE
  • Carmino Hayashi UEM
  • Fábio Meurer PUC - Toledo
  • Darci Carlos Fornari UEM
DOI: https://doi.org/10.4025/actascianimsci.v26i2.1867

Abstract

This experiment was composed of two essays. The first one studied the deletrious effect of dimethylsulfoxide concentration on Nile tilapia (Oreochromis niloticus L.) fries through bath immersion. The second assessed the sex reversal of male and the performance of Nile tilapia fries submitted to immersion in different hormone concentrations. The animals were immersed over 36 hours in recipients of 0.5L, with fifty fries. In the first essay dimethylsulfoxide concentrations of 0.04, 0.1, 0.3, 0.7 and 1.0% were utilized and there was no significant difference (p>0.05) in survival results between the treatments. In the second essay 0.5, 1.5, 2.5, 3.5, 4.5 and 5.5mg of 17alpha-metyltestosterone.L-1 were utilized in 0.04% dimethylsulfoxide solution, in which the best result (P<0.05) to 5.5mg (86.15% of male fries) could be verified. It could be concluded that dimethylsulfoxide does not damage the fish and the highest masculinization ratios are checked through immersion of 5.5mg of 17alpha-methyltestosterone.L-1

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Author Biography

Robie Allan Bombardelli, UNOESTE
Possui graduação em Engenharia de Pesca pela Universidade Estadual do Oeste do Paraná (2001) , mestrado em Zootecnia pela Universidade Estadual de Maringá (2003) e doutorado em Programa de Pós-Graduaçao em Zootencia-UEM pela Universidade Estadual de Maringá (2007) . Atualmente é Professor Assistente nível A da Universidade Estadual do Oeste do Paraná. Tem experiência na área de Recursos Pesqueiros e Engenharia de Pesca. Atuando principalmente nos seguintes temas: Reprodução de peixes, Desempenho reprodutivo, nutrição, Energia digestível, Oreochromis niloticus e Histologia Currículo Lattes
Published
2008-04-09
How to Cite
Bombardelli, R. A., Hayashi, C., Meurer, F., & Fornari, D. C. (2008). <b>Masculinizaton of Nile tilápia fries (<em>Oreochromis niloticus</em>) through bath immersion and androgen dissolved in dimethilsulfoxide (DMSO) solution</b&gt; - DOI: 10.4025/actascianimsci.v26i2.1867. Acta Scientiarum. Animal Sciences, 26(2), 209-215. https://doi.org/10.4025/actascianimsci.v26i2.1867
Issue
Vol 26 No 2 (2004)
Section
Animal Science

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