• Fernanda Morais HENRIQUES Universidade Federal de Santa Catarina -  UFSC, Departamento de Aquicultura, Laboratório de Camarí­µes Marinhos -  LCM.
  • Ariane Martins GUIMARÃES Universidade Federal de Santa Catarina -  UFSC, Departamento de Aquicultura, Laboratório de Camarí­µes Marinhos -  LCM.
  • Carlos Andrés DÍAZ Universidade Federal de Santa Catarina -  UFSC, Departamento de Aquicultura, Laboratório de Camarí­µes Marinhos -  LCM.
  • Débora Machado FRACALOSSI Universidade Federal de Santa Catarina -  UFSC, Departamento de Aquicultura, Laboratório de Nutrição de Organismos Aquáticos -  Labnutri.
  • Edemar Roberto ANDREATTA Universidade Federal de Santa Catarina -  UFSC, Departamento de Aquicultura, Laboratório de Camarí­µes Marinhos -  LCM.
  • Felipe do Nascimento VIEIRA Universidade Federal de Santa Catarina -  UFSC, Departamento de Aquicultura, Laboratório de Camarí­µes Marinhos -  LCM.



Litopenaeus vannamei, nutrition, diets, BFT.


This study evaluated the protein requirement of Litopenaeus vannamei post-larvae during the initial rearing phase in a biofloc system. Five different diets were evaluated with increasing concentrations of crude protein: 31.28, 36.29, 41.57, 46.34, and 51.74 g 100 g-1 CP. Post-larvae (0.16 ± 0.01 g) were stocked at a density of 450 PL m-3 in 400 L tanks. Water quality parameters were maintained within the limits recommended for shrimp farming. After 38 days, a regression analysis revealed that levels of CP content (65.29 í  72.83%), EE (10.45 í  11.65%) and body N (10.45 í  11.64%) increased with increasing protein levels in the diet. A similar trend was observed in the biofloc sludge with respect to CP and N. Survival exceeded 80%, and the shrimp with diets containing 31.28 to 46.34g 100 g-1 CP presented an increase in final weight (1.52 í  2.61 g), productivity (0.69 í  1.10 Kg m-3), weight gain (1.38 í  2.44 g), and feeding efficiency (77.28 í  101.68%), whereas these indices decreased to51.74 g 100 g-1 CP. Crude protein content from 44.26 to 47.12 g 100 g-1 provided the best growth performance during the initial rearing phase of Pacific white shrimp in a biofloc system.


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