Sodium nitrate use as strategy of fertilization in the production of the shrimp Litopenaeus vannamei
Keywords:
Litopenaeus vannamei, fertilization, sodium nitrate, productionAbstract
The aim of the present research was to evaluate the performance of the production of the shrimp Litopenaeus vannamei in ponds fertilized with sodium nitrate. The experiment was developed in a farm located in the Municipal District of Goiana, Pernambuco State (Brazil). The experimental design considered two treatments: NS (sodium nitrate enriched with phosphate, silicate, boron, magnesium, sulfur and potassium) and SNS (urea, triple superphosphate, sodium silicate). Statistical analysis used the Student "t†test (P < 0.05). The treatments NS and SNS provided,respectively, weight (g) in the first forty days of 3.2 ± 0.1 and 2.8 ± 0.2; final weight (g) of 8.5 ± 0.46 and 8.2 ± 0.55; feed conversion ratio of 1.8 ± 0.30 and 1.6 ± 0.18; survival (%) of 69.7 ± 15.31 and 82.7 ± 10.3; time of culture (day) of 131 ± 8 and 128 ± 12; and yield (kg/ha.cycle) of 2,133 ± 928 and 2,220 ± 319, presenting significant difference among the treatments, for the shrimp weight in the first forty days of culture.
References
ALONSO-RODRÍGUEZ, R. e PÁEZ-OSUNA, F. 2003 Nutrients, phytoplankton and harmful algal blooms in shrimp ponds: a review with special reference to the situation in the Gulf of California. Aquaculture, Amsterdam, 219: 317-336.
ANDERSON, R.K. e PARKER, P.L. 1987 A 13C/12C trace study of the utilization of presented feed by commercially important shrimp Penaeus vannamei in a pond grow out system. Journal World Aquaculture Society, 18: 148-155.
AVAULT, J.W.JR. 2003 Fertilization: Is there a role for it aquaculture. Aquaculture Magazine, 29(2):47-52.
BARBIERI, R.C.J. e OSTRENSKY, A.N. 2002 Camarões marinhos í Engorda. 1. ed. Viçosa:Aprenda Fácil. 352p.
BOYD, C.E. 1997 Pond bottom soil and water quality management for pond aquaculture. 1. ed. Alabama:
ASA. 55p.
BOYD, C.E. 2003 Fertilizantes químicos na aqüicultura de viveiros. Revista da ABCC, 5(3):79-81.
CASTRO, J. 2000 Manual técnico para camaroneras. Guayaquil. 59p. (Dissertação de Mestrado.Universidade Agrária do Equador).
CORREIA, E.S.; PEREIRA, J.A.; SILVA, A.P.; HOROWITZ, A.; HOROWITZ, S. 2003 Growout of freshwater prawn Macrobrachium rosenbergii in fertilized ponds with reduced levels of formulated feed. Journal World Aquaculture Society, 34: 184-191.
MAIA, E.P. e NUNES, A.J.P. 2003 Cultivo de Farfantepenaeus subtilis, resultados das performances de engorda intensiva. Panorama da Aqüicultura, 13(79): 36-41.
MARTINEZ-CORDOVA, L.R.; CAMPANí-TORRES, A.; PORCHAS-CORNEJO, M.A. 2002 Promotion and contribution of biota in low water exchange ponds farming blue shrimp Litopenaeus stylisrostris (Stimpson). Aquaculture Research, 33: 27-32.
MENDES, P.P. 1999 Estatística aplicada í aqüicultura.1. ed. Recife: Bagaço. 265p.
NUNES, A.J.P.; GESTEIRA, T.C.V.; GODDARD, S. 1997 Food ingestion and assimilation by the Southern brown shrimp Penaeus subtilis under semi-intensive culture in NE Brazil. Aquaculture,Amsterdam, 149: 121-136.
NUNES, A.J.P. 2001 Alimentação para camarões marinhos í Parte II. Panorama da Aqüicultura,11(63): 13-23.
ROCHA, I.P.; RODRIGUES, J.; AMORIM, L. 2004 A carcinicultura Brasileira em 2003. Revista da ABCC, 6(1):30- 36.
RODRIGUES, J. 2005 Carcinicultura marinhadesempenho em 2004. Revista da ABCC, 7(2):38-44.
SQM Disponível em htpp://www.sqm.com.br - Acesso em 31/ago./2003.
VINATEA, L. 1997 Princípios químicos da qualidade da água em aqüicultura: uma revisão para peixes e
camarões. 1. ed. Florianópolis: UFSC. 166p
