<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia
The present work aimed at determining the effects of the association between the periphyton-based system with the bioflocs-based system in the intensive culture of juvenile Nile tilapia (1.56 ± 0.07 g; 72 fish m-3), on variables of water quality, growth performance and effluent quality after 10 week...
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Editora da Universidade Estadual de Maringá (Eduem)
2016-05-01
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Online Access: | http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27592 |
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doaj-3be8b7b6d51442da837eb8a0b62e9ed72020-11-25T02:01:47ZengEditora da Universidade Estadual de Maringá (Eduem)Acta Scientiarum: Animal Sciences1806-26361807-86722016-05-0138211912510.4025/actascianimsci.v38i2.2759213513<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapiaDavi de Holanda Cavalcante0Francisco Roberto dos Santos Lima1Vanessa Tomaz Rebouças2Marcelo Vinícius do Carmo e Sá3Universidade Federal do CearáUniversidade Federal do CearáUniversidade Federal do CearáUniversidade Federal do CearáThe present work aimed at determining the effects of the association between the periphyton-based system with the bioflocs-based system in the intensive culture of juvenile Nile tilapia (1.56 ± 0.07 g; 72 fish m-3), on variables of water quality, growth performance and effluent quality after 10 weeks. The experiment was arranged in a 2 x 2 factorial randomized block design with four treatments and five repetitions each. The factors tested were the following: ‘underwater structure’ (absence and presence) and ‘adjustment of the C: N ratio of water’ (no and yes). The final fish body weight, specific growth rate and yield were higher (p < 0.05) in the C: N-adjusted tanks. The presence of submerged structures in the tanks had no significant influence on those same variables. It was concluded that the periphyton-based system is not indicated for intensive farming of Nile tilapia, in which there is a high allowance of artificial feed to fish.http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27592aquacultureOreochromislimnoculturelimnology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Davi de Holanda Cavalcante Francisco Roberto dos Santos Lima Vanessa Tomaz Rebouças Marcelo Vinícius do Carmo e Sá |
spellingShingle |
Davi de Holanda Cavalcante Francisco Roberto dos Santos Lima Vanessa Tomaz Rebouças Marcelo Vinícius do Carmo e Sá <b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia Acta Scientiarum: Animal Sciences aquaculture Oreochromis limnoculture limnology |
author_facet |
Davi de Holanda Cavalcante Francisco Roberto dos Santos Lima Vanessa Tomaz Rebouças Marcelo Vinícius do Carmo e Sá |
author_sort |
Davi de Holanda Cavalcante |
title |
<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia |
title_short |
<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia |
title_full |
<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia |
title_fullStr |
<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia |
title_full_unstemmed |
<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia |
title_sort |
<b>association between periphyton and bioflocs systems in intensive culture of juvenile nile tilapia |
publisher |
Editora da Universidade Estadual de Maringá (Eduem) |
series |
Acta Scientiarum: Animal Sciences |
issn |
1806-2636 1807-8672 |
publishDate |
2016-05-01 |
description |
The present work aimed at determining the effects of the association between the periphyton-based system with the bioflocs-based system in the intensive culture of juvenile Nile tilapia (1.56 ± 0.07 g; 72 fish m-3), on variables of water quality, growth performance and effluent quality after 10 weeks. The experiment was arranged in a 2 x 2 factorial randomized block design with four treatments and five repetitions each. The factors tested were the following: ‘underwater structure’ (absence and presence) and ‘adjustment of the C: N ratio of water’ (no and yes). The final fish body weight, specific growth rate and yield were higher (p < 0.05) in the C: N-adjusted tanks. The presence of submerged structures in the tanks had no significant influence on those same variables. It was concluded that the periphyton-based system is not indicated for intensive farming of Nile tilapia, in which there is a high allowance of artificial feed to fish. |
topic |
aquaculture Oreochromis limnoculture limnology |
url |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27592 |
work_keys_str_mv |
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