The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Acta Scientiarum Biological Sciences |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8541 |
Resumo: | The aim of this study was to evaluate three stocking densities (20, 40 and 60 larvae L-1), and two daily prey concentrations (400 and 700 Artemia nauplii larvae-1) during the first seven days of active feeding (first phase). In the second phase was evaluate the effect of the different feeding regimes: fasting, dry diet (55% crude protein), Artemia sp. and mixed feeding (Artemia sp. plus dry diet), after 17 days of active feeding on Rhinelepis aspera larviculture. In the first phase, growth was affected only by prey concentration. In the second phase, the dry diet induced higher growth rates than fasting, but lower growth rates than the other treatments. The acceptance of the dry diet was evidenced by an increase in the growth rate from 4.6% day-1 in the first five days to 10.7% day-1 in the following five days of feeding. Survival was similar among dry diet, mixed feeding and Artemia nauplii treatments. R. aspera larvae can be reared during the first seven days of active feeding at a density of 60 larvae L-1, after which they can be fed with a commercial dry diet. |
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The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541“Cascudo preto”commercial dietfeedingornamental fishZoologiaThe aim of this study was to evaluate three stocking densities (20, 40 and 60 larvae L-1), and two daily prey concentrations (400 and 700 Artemia nauplii larvae-1) during the first seven days of active feeding (first phase). In the second phase was evaluate the effect of the different feeding regimes: fasting, dry diet (55% crude protein), Artemia sp. and mixed feeding (Artemia sp. plus dry diet), after 17 days of active feeding on Rhinelepis aspera larviculture. In the first phase, growth was affected only by prey concentration. In the second phase, the dry diet induced higher growth rates than fasting, but lower growth rates than the other treatments. The acceptance of the dry diet was evidenced by an increase in the growth rate from 4.6% day-1 in the first five days to 10.7% day-1 in the following five days of feeding. Survival was similar among dry diet, mixed feeding and Artemia nauplii treatments. R. aspera larvae can be reared during the first seven days of active feeding at a density of 60 larvae L-1, after which they can be fed with a commercial dry diet.Universidade Estadual De Maringá2011-10-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioníndice de desempenhoapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/854110.4025/actascibiolsci.v34i2.8541Acta Scientiarum. Biological Sciences; Vol 34 No 2 (2012); 133-139Acta Scientiarum. Biological Sciences; v. 34 n. 2 (2012); 133-1391807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8541/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8541/pdf_1Santos, José Cláudio Epaminondas dosPedreira, Marcelo MattosLuz, Ronald Kennedyinfo:eu-repo/semantics/openAccess2022-11-23T17:34:00Zoai:periodicos.uem.br/ojs:article/8541Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:34Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541 |
title |
The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541 |
spellingShingle |
The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541 Santos, José Cláudio Epaminondas dos “Cascudo preto” commercial diet feeding ornamental fish Zoologia |
title_short |
The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541 |
title_full |
The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541 |
title_fullStr |
The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541 |
title_full_unstemmed |
The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541 |
title_sort |
The effects of stocking density, prey concentration and feeding on Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Loricariidae) larviculture - doi: 10.4025/actascibiolsci.v34i2.8541 |
author |
Santos, José Cláudio Epaminondas dos |
author_facet |
Santos, José Cláudio Epaminondas dos Pedreira, Marcelo Mattos Luz, Ronald Kennedy |
author_role |
author |
author2 |
Pedreira, Marcelo Mattos Luz, Ronald Kennedy |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Santos, José Cláudio Epaminondas dos Pedreira, Marcelo Mattos Luz, Ronald Kennedy |
dc.subject.por.fl_str_mv |
“Cascudo preto” commercial diet feeding ornamental fish Zoologia |
topic |
“Cascudo preto” commercial diet feeding ornamental fish Zoologia |
description |
The aim of this study was to evaluate three stocking densities (20, 40 and 60 larvae L-1), and two daily prey concentrations (400 and 700 Artemia nauplii larvae-1) during the first seven days of active feeding (first phase). In the second phase was evaluate the effect of the different feeding regimes: fasting, dry diet (55% crude protein), Artemia sp. and mixed feeding (Artemia sp. plus dry diet), after 17 days of active feeding on Rhinelepis aspera larviculture. In the first phase, growth was affected only by prey concentration. In the second phase, the dry diet induced higher growth rates than fasting, but lower growth rates than the other treatments. The acceptance of the dry diet was evidenced by an increase in the growth rate from 4.6% day-1 in the first five days to 10.7% day-1 in the following five days of feeding. Survival was similar among dry diet, mixed feeding and Artemia nauplii treatments. R. aspera larvae can be reared during the first seven days of active feeding at a density of 60 larvae L-1, after which they can be fed with a commercial dry diet. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-10-21 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion índice de desempenho |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8541 10.4025/actascibiolsci.v34i2.8541 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8541 |
identifier_str_mv |
10.4025/actascibiolsci.v34i2.8541 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8541/pdf http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8541/pdf_1 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Biological Sciences; Vol 34 No 2 (2012); 133-139 Acta Scientiarum. Biological Sciences; v. 34 n. 2 (2012); 133-139 1807-863X 1679-9283 reponame:Acta Scientiarum Biological Sciences instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum Biological Sciences |
collection |
Acta Scientiarum Biological Sciences |
repository.name.fl_str_mv |
Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actabiol@uem.br |
_version_ |
1799317394973261824 |