EFECTS OF STOCKING DENSITY ON PRODUCTIVE PERFORMANCE OF THE NILE TILAPIA MAINTAINED IN RACEWAY, AN INTENSIVE PRODUCTION SYSTEM, IN WINTER SEASON

Authors

  • Márcia Virgínia Santos Bernardes UFG
  • Delma Machado Cantisani Pádua UCG
  • Paulo César Silva UFG

Keywords:

Nile tilapia, intensive system, stock densities

Abstract

The present experiment was carried out in order to evaluate the productive performance of Nile tilapia (Oreochromis niloticus) fingerling reverted for male. The fingerling was maintained under different stock densities, in intensive system type “raceway"; during the winter period. A complete randomized expeimental design was used with three stock densities, 7, 14 and 21 fish / m³, and with two repetitions for treatment. The 252 fingerling selected for homogeneous weight were distributed in six concrete tanks in which the water was renewed every hour. Feeding rate was accomplished twice a day ad libitum. In the first two months crumbly ration was supplied with 40% of crude protein and in the third month it was replaced by extruded ration with 35% of CP. The averages of water temperature in the periods of the morning and afternoon were, respectively, of 19.6 and 22.6°C, considered low for the good development of this species.

KEY-WORDS: Nile tilapia; intensive system, stock densities.

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Published

2007-12-19

How to Cite

BERNARDES, M. V. S.; PÁDUA, D. M. C.; SILVA, P. C. EFECTS OF STOCKING DENSITY ON PRODUCTIVE PERFORMANCE OF THE NILE TILAPIA MAINTAINED IN RACEWAY, AN INTENSIVE PRODUCTION SYSTEM, IN WINTER SEASON. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 28, n. 2, p. 95–106, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/3000. Acesso em: 21 dec. 2024.

Issue

v. 28, n. 2, Jul./Dec. 1998

Section

Research Article

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