Influence of stocking density on growth performance and welfare of juvenile tilapia (Oreochromis niloticus) in cages

Detalhes bibliográficos
Autor(a) principal: Costa, A. A. P.
Data de Publicação: 2017
Outros Autores: Roubach, R., Dallago, B. S. L., Bueno, G. W. [UNESP], McManus, C., Bernal, F. E. M.
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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spelling 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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