Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Animal Sciences (Online) |
Texto Completo: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22787 |
Resumo: | Developing a rearing technology requires the determination of the optimum stocking density. This study aimed to determine the best stocking density for Brycon orthotaenia juveniles grown in net cages, during the rearing phase. The research was conducted at the Experimental Farm of EPAMIG, in Felixlândia, Minas Gerais State, in the Três Marias Reservoir. 9,000 fingerlings were distributed into 12 net cages, 2 m3each, according to a completely randomized design with three replications and four different stocking densities (150, 300, 450, 600 fish m-3). Random samples were taken from each net cage, at the onset of the experiment and at 60 rearing days, to assess production parameters, specific growth rate and uniformity. We verified a positive linear relationship (p < 0.05) for final biomass (r2 = 0.88), weight gain (r2 = 0.87), productivity (r2 = 0.86), apparent feed conversion (r2 = 0.96) and economic viability (r2 = 0.96). For survival (r2 = 0.98), the relationship was negative (p < 0.05). There were no significant differences between treatments (p > 0.05) for growth parameters, uniformity and final weight. It can be concluded that the density of 300 fish m-3 is the most suitable, because it provides higher net revenue, survival, and a good feed conversion. |
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Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cagesaquacultureintensive systemsurvivalprofitabilitySão Francisco rivero FranciscoDeveloping a rearing technology requires the determination of the optimum stocking density. This study aimed to determine the best stocking density for Brycon orthotaenia juveniles grown in net cages, during the rearing phase. The research was conducted at the Experimental Farm of EPAMIG, in Felixlândia, Minas Gerais State, in the Três Marias Reservoir. 9,000 fingerlings were distributed into 12 net cages, 2 m3each, according to a completely randomized design with three replications and four different stocking densities (150, 300, 450, 600 fish m-3). Random samples were taken from each net cage, at the onset of the experiment and at 60 rearing days, to assess production parameters, specific growth rate and uniformity. We verified a positive linear relationship (p < 0.05) for final biomass (r2 = 0.88), weight gain (r2 = 0.87), productivity (r2 = 0.86), apparent feed conversion (r2 = 0.96) and economic viability (r2 = 0.96). For survival (r2 = 0.98), the relationship was negative (p < 0.05). There were no significant differences between treatments (p > 0.05) for growth parameters, uniformity and final weight. It can be concluded that the density of 300 fish m-3 is the most suitable, because it provides higher net revenue, survival, and a good feed conversion. Editora da Universidade Estadual de Maringá2014-07-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpesquisa de campoapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2278710.4025/actascianimsci.v36i3.22787Acta Scientiarum. Animal Sciences; Vol 36 No 3 (2014); 253-258Acta Scientiarum. Animal Sciences; v. 36 n. 3 (2014); 253-2581807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22787/pdf_35Lago, Aline de AssisFreitas, Rilke Tadeu Fonseca dePimenta, Maria Emília de Sousa GomesMattos, Bruno Olivetti deReis Neto, Rafael VilhenaCosta, Adriano Carvalhoinfo:eu-repo/semantics/openAccess2014-07-23T08:49:43Zoai:periodicos.uem.br/ojs:article/22787Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/oaiactaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com1807-86721806-2636opendoar:2014-07-23T08:49:43Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages |
title |
Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages |
spellingShingle |
Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages Lago, Aline de Assis aquaculture intensive system survival profitability São Francisco rivero Francisco |
title_short |
Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages |
title_full |
Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages |
title_fullStr |
Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages |
title_full_unstemmed |
Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages |
title_sort |
Stocking densities of juvenile Brycon orthotaenia: production parameters and economic benefits in net cages |
author |
Lago, Aline de Assis |
author_facet |
Lago, Aline de Assis Freitas, Rilke Tadeu Fonseca de Pimenta, Maria Emília de Sousa Gomes Mattos, Bruno Olivetti de Reis Neto, Rafael Vilhena Costa, Adriano Carvalho |
author_role |
author |
author2 |
Freitas, Rilke Tadeu Fonseca de Pimenta, Maria Emília de Sousa Gomes Mattos, Bruno Olivetti de Reis Neto, Rafael Vilhena Costa, Adriano Carvalho |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Lago, Aline de Assis Freitas, Rilke Tadeu Fonseca de Pimenta, Maria Emília de Sousa Gomes Mattos, Bruno Olivetti de Reis Neto, Rafael Vilhena Costa, Adriano Carvalho |
dc.subject.por.fl_str_mv |
aquaculture intensive system survival profitability São Francisco rivero Francisco |
topic |
aquaculture intensive system survival profitability São Francisco rivero Francisco |
description |
Developing a rearing technology requires the determination of the optimum stocking density. This study aimed to determine the best stocking density for Brycon orthotaenia juveniles grown in net cages, during the rearing phase. The research was conducted at the Experimental Farm of EPAMIG, in Felixlândia, Minas Gerais State, in the Três Marias Reservoir. 9,000 fingerlings were distributed into 12 net cages, 2 m3each, according to a completely randomized design with three replications and four different stocking densities (150, 300, 450, 600 fish m-3). Random samples were taken from each net cage, at the onset of the experiment and at 60 rearing days, to assess production parameters, specific growth rate and uniformity. We verified a positive linear relationship (p < 0.05) for final biomass (r2 = 0.88), weight gain (r2 = 0.87), productivity (r2 = 0.86), apparent feed conversion (r2 = 0.96) and economic viability (r2 = 0.96). For survival (r2 = 0.98), the relationship was negative (p < 0.05). There were no significant differences between treatments (p > 0.05) for growth parameters, uniformity and final weight. It can be concluded that the density of 300 fish m-3 is the most suitable, because it provides higher net revenue, survival, and a good feed conversion. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07-23 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion pesquisa de campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22787 10.4025/actascianimsci.v36i3.22787 |
url |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22787 |
identifier_str_mv |
10.4025/actascianimsci.v36i3.22787 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22787/pdf_35 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Editora da Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Editora da Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Animal Sciences; Vol 36 No 3 (2014); 253-258 Acta Scientiarum. Animal Sciences; v. 36 n. 3 (2014); 253-258 1807-8672 1806-2636 reponame:Acta Scientiarum. Animal Sciences (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Animal Sciences (Online) |
collection |
Acta Scientiarum. Animal Sciences (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com |
_version_ |
1799315360895205376 |