(Rapid colbranding with liquid nitrogen for rainbow trout (Salmo irideus, Gibbons) identification)

Authors

  • Antonio Carlos CARVALHO FILHO Médico Veterinário - Estação Experimental de Salmonicultura - Instituto de Pesca
  • Marcos Guilherme RIGOLINO Médico Veterinário - Estação Experimental de Salmonicultura - Instituto de Pesca
  • Washington FOGLI DA SILVEIRA Pesquisador Cientí­­fico - Seção de Biologia Aquática - Divisão de Pesca Interior - Instituo de Pesca
  • Luiz Antonio PENTEADO Pesquisador Cientí­­fico - Seção de Aquicultura - Divisão de Pesca Interior - Instituo de Pesca

Keywords:

NíO CONSTA

Abstract

With the objective of testing the efficiency of a method to mark fishes, an experiment was carried out at the Estação Experimental de Salmonicultura de Campos do Jordão. Three hundred rainbow trouts (Salmo irideus, Gibbons) were submitted to the method of cold branding in the region between the dorsal finn and the operculum, with frozen copper numbers imersed in liquid nitrogen (-196°C). The method was practically inocuous, rapid, and easy to be applied and the identification was possible in 77.90% of the specimens after three months. This time can be considered good enough for the realization of various experiments with salmonids.

 

Published

2018-06-13

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