Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Engenharia Agrícola |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500019 |
Resumo: | This study aimed to apply mathematical models to the growth of Nile tilapia (Oreochromis niloticus) reared in net cages in the lower São Francisco basin and choose the model(s) that best represents the conditions of rearing for the region. Nonlinear models of Brody, Bertalanffy, Logistic, Gompertz, and Richards were tested. The models were adjusted to the series of weight for age according to the methods of Gauss, Newton, Gradiente and Marquardt. It was used the procedure "NLIN" of the System SAS® (2003) to obtain estimates of the parameters from the available data. The best adjustment of the data were performed by the Bertalanffy, Gompertz and Logistic models which are equivalent to explain the growth of the animals up to 270 days of rearing. From the commercial point of view, it is recommended that commercialization of tilapia from at least 600 g, which is estimated in the Bertalanffy, Gompertz and Logistic models for creating over 183, 181 and 184 days, and up to 1 Kg of mass , it is suggested the suspension of the rearing up to 244, 244 and 243 days, respectively. |
id |
SBEA-1_341496703acf8d3d9e835a0b7446c135 |
---|---|
oai_identifier_str |
oai:scielo:S0100-69162014000500019 |
network_acronym_str |
SBEA-1 |
network_name_str |
Engenharia Agrícola |
repository_id_str |
|
spelling |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco rivereconomyequationsOreochromis niloticusThis study aimed to apply mathematical models to the growth of Nile tilapia (Oreochromis niloticus) reared in net cages in the lower São Francisco basin and choose the model(s) that best represents the conditions of rearing for the region. Nonlinear models of Brody, Bertalanffy, Logistic, Gompertz, and Richards were tested. The models were adjusted to the series of weight for age according to the methods of Gauss, Newton, Gradiente and Marquardt. It was used the procedure "NLIN" of the System SAS® (2003) to obtain estimates of the parameters from the available data. The best adjustment of the data were performed by the Bertalanffy, Gompertz and Logistic models which are equivalent to explain the growth of the animals up to 270 days of rearing. From the commercial point of view, it is recommended that commercialization of tilapia from at least 600 g, which is estimated in the Bertalanffy, Gompertz and Logistic models for creating over 183, 181 and 184 days, and up to 1 Kg of mass , it is suggested the suspension of the rearing up to 244, 244 and 243 days, respectively.Associação Brasileira de Engenharia Agrícola2014-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500019Engenharia Agrícola v.34 n.5 2014reponame:Engenharia Agrícolainstname:Associação Brasileira de Engenharia Agrícola (SBEA)instacron:SBEA10.1590/S0100-69162014000500019info:eu-repo/semantics/openAccessSousa Júnior,José de A. deGarrido,Marlon da S.Carvalho,Paulo G. S. deRocha,Luciano G. daCampeche,Daniela F. B.eng2014-11-18T00:00:00Zoai:scielo:S0100-69162014000500019Revistahttp://www.engenhariaagricola.org.br/ORGhttps://old.scielo.br/oai/scielo-oai.phprevistasbea@sbea.org.br||sbea@sbea.org.br1809-44300100-6916opendoar:2014-11-18T00:00Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA)false |
dc.title.none.fl_str_mv |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river |
title |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river |
spellingShingle |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river Sousa Júnior,José de A. de economy equations Oreochromis niloticus |
title_short |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river |
title_full |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river |
title_fullStr |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river |
title_full_unstemmed |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river |
title_sort |
Mathematical modeling applied to the growth of tilapia in net cages in the sub middle of the São Francisco river |
author |
Sousa Júnior,José de A. de |
author_facet |
Sousa Júnior,José de A. de Garrido,Marlon da S. Carvalho,Paulo G. S. de Rocha,Luciano G. da Campeche,Daniela F. B. |
author_role |
author |
author2 |
Garrido,Marlon da S. Carvalho,Paulo G. S. de Rocha,Luciano G. da Campeche,Daniela F. B. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Sousa Júnior,José de A. de Garrido,Marlon da S. Carvalho,Paulo G. S. de Rocha,Luciano G. da Campeche,Daniela F. B. |
dc.subject.por.fl_str_mv |
economy equations Oreochromis niloticus |
topic |
economy equations Oreochromis niloticus |
description |
This study aimed to apply mathematical models to the growth of Nile tilapia (Oreochromis niloticus) reared in net cages in the lower São Francisco basin and choose the model(s) that best represents the conditions of rearing for the region. Nonlinear models of Brody, Bertalanffy, Logistic, Gompertz, and Richards were tested. The models were adjusted to the series of weight for age according to the methods of Gauss, Newton, Gradiente and Marquardt. It was used the procedure "NLIN" of the System SAS® (2003) to obtain estimates of the parameters from the available data. The best adjustment of the data were performed by the Bertalanffy, Gompertz and Logistic models which are equivalent to explain the growth of the animals up to 270 days of rearing. From the commercial point of view, it is recommended that commercialization of tilapia from at least 600 g, which is estimated in the Bertalanffy, Gompertz and Logistic models for creating over 183, 181 and 184 days, and up to 1 Kg of mass , it is suggested the suspension of the rearing up to 244, 244 and 243 days, respectively. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-69162014000500019 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Agrícola |
publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Agrícola |
dc.source.none.fl_str_mv |
Engenharia Agrícola v.34 n.5 2014 reponame:Engenharia Agrícola instname:Associação Brasileira de Engenharia Agrícola (SBEA) instacron:SBEA |
instname_str |
Associação Brasileira de Engenharia Agrícola (SBEA) |
instacron_str |
SBEA |
institution |
SBEA |
reponame_str |
Engenharia Agrícola |
collection |
Engenharia Agrícola |
repository.name.fl_str_mv |
Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA) |
repository.mail.fl_str_mv |
revistasbea@sbea.org.br||sbea@sbea.org.br |
_version_ |
1752126272012550144 |