Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1678-4162-8939 http://hdl.handle.net/11449/162609 |
Resumo: | Intensification of tilapia production can cause negative implications on performance and welfare of fishes. Thus, it is essential to determine a correct density for optimal production. This study aimed to evaluate performance and animal welfare of juvenile Nile tilapia with an initial weight average of 30g (+/- 2.70) reared using three different stocking densities in floating net-cages. Fish were fed three times a day with feed containing 32% crude protein during 74 days. The experimental design was completely randomized with 3 treatments (250 fish/m(3), 350 fish/m(3) and 450 fish/m(3)) and 4 replicas. The physical chemical parameters of water were monitored throughout the experiment. Increase in stocking density caused a decrease in the final weight of fish, weight gain, daily weight gain, standard length and survival, as well as an increase in feed conversion. However, higher densities seem to reduce the effect on weight variation. There was no influence of stocking density on final biomass, blood glucose and serum cortisol concentrations. Therefore, the increase of stocking density compromised development and survival of fish, but did not influence the physiological parameters of stress. Thus, treatment with 250 fish/m(3) was shown to be the most suitable for fish performance. |
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Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cagesanimal welfareaquaculturebiomasscortisolstressIntensification of tilapia production can cause negative implications on performance and welfare of fishes. Thus, it is essential to determine a correct density for optimal production. This study aimed to evaluate performance and animal welfare of juvenile Nile tilapia with an initial weight average of 30g (+/- 2.70) reared using three different stocking densities in floating net-cages. Fish were fed three times a day with feed containing 32% crude protein during 74 days. The experimental design was completely randomized with 3 treatments (250 fish/m(3), 350 fish/m(3) and 450 fish/m(3)) and 4 replicas. The physical chemical parameters of water were monitored throughout the experiment. Increase in stocking density caused a decrease in the final weight of fish, weight gain, daily weight gain, standard length and survival, as well as an increase in feed conversion. However, higher densities seem to reduce the effect on weight variation. There was no influence of stocking density on final biomass, blood glucose and serum cortisol concentrations. Therefore, the increase of stocking density compromised development and survival of fish, but did not influence the physiological parameters of stress. Thus, treatment with 250 fish/m(3) was shown to be the most suitable for fish performance.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Brasilia, Fac Agron & Med Vet, Brasilia, DF, BrazilMinist Agr Pecuaria & Abastecimento, Gabinete Secretaria Aquicultura & Pesca, Brasilia, DF, BrazilUniv Estadual Paulista, Curso Engn Pesca, Campus Registro, Registro, SP, BrazilCNPq, INCT, IGSPB, Belo Horizonte, MG, BrazilUniv Estadual Paulista, Curso Engn Pesca, Campus Registro, Registro, SP, BrazilArquivo Brasileiro Medicina Veterinaria ZootecniaUniversidade de Brasília (UnB)Minist Agr Pecuaria & AbastecimentoUniversidade Estadual Paulista (Unesp)CNPqCosta, A. A. P.Roubach, R.Dallago, B. S. L.Bueno, G. W. [UNESP]McManus, C.Bernal, F. E. M.2018-11-26T17:21:07Z2018-11-26T17:21:07Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article243-251application/pdfhttp://dx.doi.org/10.1590/1678-4162-8939Arquivo Brasileiro De Medicina Veterinaria E Zootecnia. Minas Gerais: Arquivo Brasileiro Medicina Veterinaria Zootecnia, v. 69, n. 1, p. 243-251, 2017.0102-0935http://hdl.handle.net/11449/16260910.1590/1678-4162-8939S0102-09352017000100243WOS:000397258900032S0102-09352017000100243.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengArquivo Brasileiro De Medicina Veterinaria E Zootecnia0,248info:eu-repo/semantics/openAccess2024-05-03T13:20:09Zoai:repositorio.unesp.br:11449/162609Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:33:46.695821Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages |
title |
Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages |
spellingShingle |
Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages Costa, A. A. P. animal welfare aquaculture biomass cortisol stress |
title_short |
Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages |
title_full |
Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages |
title_fullStr |
Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages |
title_full_unstemmed |
Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages |
title_sort |
Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages |
author |
Costa, A. A. P. |
author_facet |
Costa, A. A. P. Roubach, R. Dallago, B. S. L. Bueno, G. W. [UNESP] McManus, C. Bernal, F. E. M. |
author_role |
author |
author2 |
Roubach, R. Dallago, B. S. L. Bueno, G. W. [UNESP] McManus, C. Bernal, F. E. M. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de Brasília (UnB) Minist Agr Pecuaria & Abastecimento Universidade Estadual Paulista (Unesp) CNPq |
dc.contributor.author.fl_str_mv |
Costa, A. A. P. Roubach, R. Dallago, B. S. L. Bueno, G. W. [UNESP] McManus, C. Bernal, F. E. M. |
dc.subject.por.fl_str_mv |
animal welfare aquaculture biomass cortisol stress |
topic |
animal welfare aquaculture biomass cortisol stress |
description |
Intensification of tilapia production can cause negative implications on performance and welfare of fishes. Thus, it is essential to determine a correct density for optimal production. This study aimed to evaluate performance and animal welfare of juvenile Nile tilapia with an initial weight average of 30g (+/- 2.70) reared using three different stocking densities in floating net-cages. Fish were fed three times a day with feed containing 32% crude protein during 74 days. The experimental design was completely randomized with 3 treatments (250 fish/m(3), 350 fish/m(3) and 450 fish/m(3)) and 4 replicas. The physical chemical parameters of water were monitored throughout the experiment. Increase in stocking density caused a decrease in the final weight of fish, weight gain, daily weight gain, standard length and survival, as well as an increase in feed conversion. However, higher densities seem to reduce the effect on weight variation. There was no influence of stocking density on final biomass, blood glucose and serum cortisol concentrations. Therefore, the increase of stocking density compromised development and survival of fish, but did not influence the physiological parameters of stress. Thus, treatment with 250 fish/m(3) was shown to be the most suitable for fish performance. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-11-26T17:21:07Z 2018-11-26T17:21:07Z |
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/10.1590/1678-4162-8939 Arquivo Brasileiro De Medicina Veterinaria E Zootecnia. Minas Gerais: Arquivo Brasileiro Medicina Veterinaria Zootecnia, v. 69, n. 1, p. 243-251, 2017. 0102-0935 http://hdl.handle.net/11449/162609 10.1590/1678-4162-8939 S0102-09352017000100243 WOS:000397258900032 S0102-09352017000100243.pdf |
url |
http://dx.doi.org/10.1590/1678-4162-8939 http://hdl.handle.net/11449/162609 |
identifier_str_mv |
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia. Minas Gerais: Arquivo Brasileiro Medicina Veterinaria Zootecnia, v. 69, n. 1, p. 243-251, 2017. 0102-0935 10.1590/1678-4162-8939 S0102-09352017000100243 WOS:000397258900032 S0102-09352017000100243.pdf |
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 |
243-251 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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1808128827005599745 |