Lysine requirement for tambaqui juveniles

Authors

  • Janayra Cardoso Silva Universidade Federal do Maranhão
  • Marcos Antonio Delmondes Bomfim Universidade Federal do Maranhão
  • Eduardo Arruda Teixeira Lanna Universidade Federal de Viçosa
  • Felipe Barbosa Ribeiro Universidade Federal do Maranhão
  • Jefferson Costa de Siqueira Universidade Federal do Maranhão
  • Thalles José Rêgo de Sousa Universidade Federal do Maranhão
  • Rafael Silva Marchão Universidade Federal do Maranhão
  • Daphinne Cardoso Nagib do Nascimento Universidade Federal do Piauí

DOI:

https://doi.org/10.5433/1679-0359.2018v39n5p2157

Keywords:

Body composition, Colossoma macropomum, Initial growth phase, Protein nutrition.

Abstract

The aim of this study was to determine the requirement for lysine in the diet of juvenile tambaqui (Colossoma macropomum). In total, 750 juvenile fish (0.34 ± 0.02g) were distributed in tanks arranged in a randomized block design with six treatments, five replications in two blocks, and 25 fish per unit, for 50 d. Six levels of digestible lysine were tested (1.30, 1.48, 1.66, 1.84, 2.02, and 2.20%), in formulated diets based on the ideal protein concept. The performance, feed efficiency, daily deposition of protein and body fat, and nitrogen retention efficiency of the fish were evaluated. The consumption of rations and protein, specific growth rate, body composition, and deposition of body fat were not influenced by the lysine levels tested. The consumption of digestible lysine increased linearly and the efficiency of digestible lysine for weight gain decreased linearly with the increase in lysine levels. The levels of digestible lysine that optimized weight gain and body protein deposition were estimated at 1.73 and 1.78%, respectively. The feed conversion and nitrogen retention efficiency were most improved at 1.66% and 1.84%, respectively. The recommended level of dietary lysine for providing better weight gain and body protein deposition in juvenile tambaqui is 1.78%, equivalent to 2.00% total lysine.

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Author Biographies

Janayra Cardoso Silva, Universidade Federal do Maranhão

Discente, Programa de Pós-Graduação em Ciência Animal, Universidade Federal do Maranhão, UFMA, Campus IV Chapadinha, Chapadinha, MA, Brasil.

Marcos Antonio Delmondes Bomfim, Universidade Federal do Maranhão

Prof., Curso de Zootecnia, UFMA, Campus IV Chapadinha, Chapadinha, MA, Brasil.

Eduardo Arruda Teixeira Lanna, Universidade Federal de Viçosa

Prof., Departamento de Zootecnia, Universidade Federal de Viçosa, UFV, Viçosa, MG, Brasil.

Felipe Barbosa Ribeiro, Universidade Federal do Maranhão

Prof., Curso de Zootecnia, UFMA, Campus IV Chapadinha, Chapadinha, MA, Brasil.

Jefferson Costa de Siqueira, Universidade Federal do Maranhão

Prof., Curso de Zootecnia, UFMA, Campus IV Chapadinha, Chapadinha, MA, Brasil.

Thalles José Rêgo de Sousa, Universidade Federal do Maranhão

Discente, Programa de Pós-Graduação em Ciência Animal, Universidade Federal do Maranhão, UFMA, Campus IV Chapadinha, Chapadinha, MA, Brasil.

Rafael Silva Marchão, Universidade Federal do Maranhão

Discente, Programa de Pós-Graduação em Ciência Animal, Universidade Federal do Maranhão, UFMA, Campus IV Chapadinha, Chapadinha, MA, Brasil.

Daphinne Cardoso Nagib do Nascimento, Universidade Federal do Piauí

Pesquisador, Programa de Pós-Graduação em Ciência Animal, Universidade Federal do Piauí, UFPI, Campus Petrônio Portella, Teresina, PI, Brasil.

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Published

2018-08-20

How to Cite

Silva, J. C., Bomfim, M. A. D., Lanna, E. A. T., Ribeiro, F. B., Siqueira, J. C. de, Sousa, T. J. R. de, Marchão, R. S., & Nascimento, D. C. N. do. (2018). Lysine requirement for tambaqui juveniles. Semina: Ciências Agrárias, 39(5), 2157–2168. https://doi.org/10.5433/1679-0359.2018v39n5p2157

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