Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1678-4162-7882 http://hdl.handle.net/11449/164734 |
Resumo: | The main goal of modern intensive fish farms should be to increase productivity at a low cost. The automation of fish feeding plays an important role in this scenario since it may improve feed efficiency and reduce organic waste emissions. The aim of this experiment was to provide basic information for the development of feeding techniques using automatic feeders. The experiment was done from September to December, with tilapia weighing 185g, fed 48 meals a day at 22 or 30 minute intervals, with feeding rates of 2, 3 and 4% of live weight. Eighteen 1m(3) net cages equipped with automatic feeders were distributed in one pond. During the experimental trial the mean values for dissolved oxygen, pH and temperature were 3.20mg/l, 8.03 and 25.43 degrees C, respectively. The highest average weight of 683.73g was achieved for fish treated with 4% of live weight at 30 minute intervals between meals. There was no difference for viscero-somatic index, demonstrating no alteration in the final carcass quality. These results demonstrate that a higher feeding rate added to efficient feed management can be used at the final stages of raising Nile tilapia in cages without compromising final fish productive quality. |
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Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different ratesautomatic feedingfeeding managementOreochromis niloticusfeed efficiencycarcass indexesThe main goal of modern intensive fish farms should be to increase productivity at a low cost. The automation of fish feeding plays an important role in this scenario since it may improve feed efficiency and reduce organic waste emissions. The aim of this experiment was to provide basic information for the development of feeding techniques using automatic feeders. The experiment was done from September to December, with tilapia weighing 185g, fed 48 meals a day at 22 or 30 minute intervals, with feeding rates of 2, 3 and 4% of live weight. Eighteen 1m(3) net cages equipped with automatic feeders were distributed in one pond. During the experimental trial the mean values for dissolved oxygen, pH and temperature were 3.20mg/l, 8.03 and 25.43 degrees C, respectively. The highest average weight of 683.73g was achieved for fish treated with 4% of live weight at 30 minute intervals between meals. There was no difference for viscero-somatic index, demonstrating no alteration in the final carcass quality. These results demonstrate that a higher feeding rate added to efficient feed management can be used at the final stages of raising Nile tilapia in cages without compromising final fish productive quality.Univ Estadual Paulista, FMVZ, Botucatu, SP, BrazilCuesta Aquicultura, Botucatu, SP, BrazilUniv Estadual Paulista, FMVZ, Botucatu, SP, BrazilArquivo Brasileiro Medicina Veterinaria ZootecniaUniversidade Estadual Paulista (Unesp)Cuesta AquiculturaOliveira, F. A. [UNESP]Argentim, D. [UNESP]Novelli, P. K. [UNESP]Agostinho, S. M. M.Agostinho, L. M. [UNESP]Agostinho, C. A. [UNESP]2018-11-26T17:55:52Z2018-11-26T17:55:52Z2016-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article702-708application/pdfhttp://dx.doi.org/10.1590/1678-4162-7882Arquivo Brasileiro De Medicina Veterinaria E Zootecnia. Minas Gerais: Arquivo Brasileiro Medicina Veterinaria Zootecnia, v. 68, n. 3, p. 702-708, 2016.0102-0935http://hdl.handle.net/11449/16473410.1590/1678-4162-7882S0102-09352016000300702WOS:000379354600020S0102-09352016000300702.pdf27727511443471100000-0003-0355-0553Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengArquivo Brasileiro De Medicina Veterinaria E Zootecnia0,248info:eu-repo/semantics/openAccess2024-04-09T15:36:43Zoai:repositorio.unesp.br:11449/164734Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-09T15:36:43Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates |
title |
Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates |
spellingShingle |
Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates Oliveira, F. A. [UNESP] automatic feeding feeding management Oreochromis niloticus feed efficiency carcass indexes |
title_short |
Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates |
title_full |
Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates |
title_fullStr |
Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates |
title_full_unstemmed |
Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates |
title_sort |
Automatic feeders for Nile tilapia raised in cages: productive performance at high feeding frequencies and different rates |
author |
Oliveira, F. A. [UNESP] |
author_facet |
Oliveira, F. A. [UNESP] Argentim, D. [UNESP] Novelli, P. K. [UNESP] Agostinho, S. M. M. Agostinho, L. M. [UNESP] Agostinho, C. A. [UNESP] |
author_role |
author |
author2 |
Argentim, D. [UNESP] Novelli, P. K. [UNESP] Agostinho, S. M. M. Agostinho, L. M. [UNESP] Agostinho, C. A. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Cuesta Aquicultura |
dc.contributor.author.fl_str_mv |
Oliveira, F. A. [UNESP] Argentim, D. [UNESP] Novelli, P. K. [UNESP] Agostinho, S. M. M. Agostinho, L. M. [UNESP] Agostinho, C. A. [UNESP] |
dc.subject.por.fl_str_mv |
automatic feeding feeding management Oreochromis niloticus feed efficiency carcass indexes |
topic |
automatic feeding feeding management Oreochromis niloticus feed efficiency carcass indexes |
description |
The main goal of modern intensive fish farms should be to increase productivity at a low cost. The automation of fish feeding plays an important role in this scenario since it may improve feed efficiency and reduce organic waste emissions. The aim of this experiment was to provide basic information for the development of feeding techniques using automatic feeders. The experiment was done from September to December, with tilapia weighing 185g, fed 48 meals a day at 22 or 30 minute intervals, with feeding rates of 2, 3 and 4% of live weight. Eighteen 1m(3) net cages equipped with automatic feeders were distributed in one pond. During the experimental trial the mean values for dissolved oxygen, pH and temperature were 3.20mg/l, 8.03 and 25.43 degrees C, respectively. The highest average weight of 683.73g was achieved for fish treated with 4% of live weight at 30 minute intervals between meals. There was no difference for viscero-somatic index, demonstrating no alteration in the final carcass quality. These results demonstrate that a higher feeding rate added to efficient feed management can be used at the final stages of raising Nile tilapia in cages without compromising final fish productive quality. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05-01 2018-11-26T17:55:52Z 2018-11-26T17:55:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/1678-4162-7882 Arquivo Brasileiro De Medicina Veterinaria E Zootecnia. Minas Gerais: Arquivo Brasileiro Medicina Veterinaria Zootecnia, v. 68, n. 3, p. 702-708, 2016. 0102-0935 http://hdl.handle.net/11449/164734 10.1590/1678-4162-7882 S0102-09352016000300702 WOS:000379354600020 S0102-09352016000300702.pdf 2772751144347110 0000-0003-0355-0553 |
url |
http://dx.doi.org/10.1590/1678-4162-7882 http://hdl.handle.net/11449/164734 |
identifier_str_mv |
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia. Minas Gerais: Arquivo Brasileiro Medicina Veterinaria Zootecnia, v. 68, n. 3, p. 702-708, 2016. 0102-0935 10.1590/1678-4162-7882 S0102-09352016000300702 WOS:000379354600020 S0102-09352016000300702.pdf 2772751144347110 0000-0003-0355-0553 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia 0,248 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
702-708 application/pdf |
dc.publisher.none.fl_str_mv |
Arquivo Brasileiro Medicina Veterinaria Zootecnia |
publisher.none.fl_str_mv |
Arquivo Brasileiro Medicina Veterinaria Zootecnia |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1799965189939920896 |