Utilização de fertilizantes orgânicos para indução de alimento natural no cultivo do camarão nativo Farfantepenaeus subtilis (Pérez-Farfante, 1967)

Submitted by (edna.saturno@ufrpe.br) on 2017-02-23T11:53:43Z No. of bitstreams: 1 Werlanne Mendes de Santana.pdf: 317097 bytes, checksum: 3d1965fd3aff1686bf1b7acbbcc5fd99 (MD5) Made available in DSpace on 2017-02-23T11:53:43Z (GMT). No. of bitstreams: 1 Werlanne Mendes de Santana.pdf: 317097 bytes, checksum: 3d1965fd3aff1686bf1b7acbbcc5fd99 (MD5) Previous issue date: 2006-02-20 Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq The marine shrimp Farfantepenaeus subtilis has a high potential for the aquaculture. However there are some feeding and nutrition problems in captivity, resulting in low growth and high feed conversion ratio. This work aimed to evaluate the natural food induction in F. subtilis culture, through different fertilization regimes. Were adopted four treatments and three replicates, using three organic fertilizers: wheat bran – FT (28 g.m-²); rice bran – FA (28 g.m-²); molasses – ML (40 mL.m-²); and one control – CT, with inorganic fertilizers (2 mg.L-1 nitrogen and 0.2 mg.L-1 phosphorus). For this, were utilized twelve 500 L fiber glass tanks stocked with 30 shrimps.m-2 (2.57±1.27 g). Artificial commercial feed with 35% of crude protein was offered in feeding trays three times a day (08:00 12:00 and 16:00). Plankton, benthos and water samples were collected fortnightly during the culture. Results showed no significant difference (P≥0.05) in survival among the organic fertilizers treatments, but showed statistical difference (P