Growth performance of three pejerrey genetic groups in intensive culture system

Autores

  • Rafael Aldrighi Tavares Universidade Federal de Pelotas
  • Sérgio Renato Noguez Piedras Universidade Federal de Pelotas
  • João Morato Fernandes Universidade Federal de Pelotas
  • Juvêncio Luis Osório Fernandes Pouey Universidade Federal de Pelotas
  • Verônica Hammes Garcia Universidade Federal de Pelotas
  • Heden Luiz Marques Moreira Universidade Federal de Pelotas
  • Nelson José Laurino Dionello Universidade Federal de Pelotas

DOI:

https://doi.org/10.5433/1679-0359.2014v35n5p2749

Palavras-chave:

Odontesthes bonariensis, Odontesthes humensis, Hybrid, Genetic improvement.

Resumo

This study examined the growth performance of Odontesthes bonariensis, O. humensis and hybrid (O. bonariensis X O. humensis) in intensive culture system for a period of 180 days, using the body weight (W), total length (Lt), condition factor (CF), allometric coefficient (b), specific growth rate (SGR) and estimates of body weight and maximum total length (Wmax, Ltmax) as indicators. Fish were randomly selected from three genetic groups (Bonariensis, Humensis and Hybrid), divided into water recirculation system consisting of 12 tanks (50 L). 12 measurements of body weight and total length (0, 2, 7, 14, 21, 30, 45, 60, 75, 90, 120, 180 days) were taken by means of a random sample of 10 subjects per replicate. All genetic groups grew in weight and length over the period analyzed, being influenced by the genetics of each species. O. bonariensis showed the best performance in growth and hybrid fish showed intermediate growth and estimated maximum body weight exceeding the pure species. Based on these results, it would be helpful the selective breeding and formation of domesticated strains.

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Biografia do Autor

Rafael Aldrighi Tavares, Universidade Federal de Pelotas

Postgraduate Student in Animal Science, Department of Animal Science, Faculty of Agronomy Eliseu Maciel, UFPel, Pelotas, RS, Brasil.

Sérgio Renato Noguez Piedras, Universidade Federal de Pelotas

Prof. Dr. of Department of Animal Science, Faculty of Agronomy Eliseu Maciel, Universidade Federal de Pelotas UFPel, Pelotas, RS, Brasil.

João Morato Fernandes, Universidade Federal de Pelotas

Postgraduate Student in Animal Science, Department of Animal Science, Faculty of Agronomy Eliseu Maciel, UFPel, Pelotas, RS, Brasil.

Juvêncio Luis Osório Fernandes Pouey, Universidade Federal de Pelotas

Prof. Dr. of Department of Animal Science, Faculty of Agronomy Eliseu Maciel, Universidade Federal de Pelotas UFPel, Pelotas, RS, Brasil.

Verônica Hammes Garcia, Universidade Federal de Pelotas

Postgraduate Student in Animal Science, Department of Animal Science, Faculty of Agronomy Eliseu Maciel, UFPel, Pelotas, RS, Brasil.

Heden Luiz Marques Moreira, Universidade Federal de Pelotas

Prof. Dr. of Department of Zoology and Genetics, Institute of Biology, UFPel, Pelotas, RS, Brazil.

Nelson José Laurino Dionello, Universidade Federal de Pelotas

Prof. Dr. of Department of Animal Science, Faculty of Agronomy Eliseu Maciel, Universidade Federal de Pelotas UFPel, Pelotas, RS, Brasil.

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Publicado

2014-11-05

Como Citar

Tavares, R. A., Piedras, S. R. N., Fernandes, J. M., Pouey, J. L. O. F., Garcia, V. H., Moreira, H. L. M., & Dionello, N. J. L. (2014). Growth performance of three pejerrey genetic groups in intensive culture system. Semina: Ciências Agrárias, 35(5), 2749–2758. https://doi.org/10.5433/1679-0359.2014v35n5p2749

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