PHYSICAL AND CHEMICAL HYDROLOGICAL VARIABLES IN NILE TILAPIA RAISING IN THE RACEWAY SYSTEM WITH DIFFERENT LEVELS OF WATER RENOVATION

Authors

  • Raquel Priscila Castro Oliveira UFG
  • Paulo César Silva UFG
  • Priscila Policarpo de Brito UFG
  • Jacqueline Pereira Gomes UFG
  • Renata Fernandes da Silva UFG
  • Paulo Roberto Silveira Filho UFG
  • Rogério dos Santos Roque UFG

DOI:

https://doi.org/10.5216/cab.v11i3.3847

Keywords:

Fish production

Abstract

This experiment was carried to evaluate the hydrological alterations in the production of Nile tilapia (Oreochromis niloticus) in raceway, with different rates of water exchanges, to estimate the impact of this system on water quality. Four treatments with total exchange of water at 30, 90, 120 and 150 minutes were analyzed. A total of 1,500 fingerlings were used. They were reverted for male, fed three times a day with commercial extruded ration 36% and 32% of crude protein. The following hydrological parameters were evaluated: dissolved oxygen, temperature, alkalinity, pH, solids in suspension, turbidity, electrical conductivity, phosphorus, nitrite and nitrate. All tested treatments maintained the hydrological variables within patterns suggested for fish raising, rationalizing the use of water for cultivation.

KEYWORDS: High water flow, Oreochromis niloticus, water quality, water total exchange.

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Author Biographies

Raquel Priscila Castro Oliveira, UFG

Aluna de Doutorado do programa de pós graduação em Ciência Animal da Universidade Federal de Goiás

Paulo César Silva, UFG

Professor Doutor do Departamento de Produção Animal e responsável pelo Setor de Piscicultura EV/UFG – Caixa Postal 131, CEP 74001-970. Goiânia-Go

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Published

2010-10-01

How to Cite

CASTRO OLIVEIRA, R. P.; SILVA, P. C.; DE BRITO, P. P.; GOMES, J. P.; DA SILVA, R. F.; SILVEIRA FILHO, P. R.; ROQUE, R. dos S. PHYSICAL AND CHEMICAL HYDROLOGICAL VARIABLES IN NILE TILAPIA RAISING IN THE RACEWAY SYSTEM WITH DIFFERENT LEVELS OF WATER RENOVATION. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 11, n. 3, p. 482–487, 2010. DOI: 10.5216/cab.v11i3.3847. Disponível em: https://revistas.ufg.br/vet/article/view/3847. Acesso em: 16 aug. 2024.

Issue

Vol. 11 No. 3 (2010)

Section

Animal Production

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