Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Animal Sciences (Online) |
Texto Completo: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1227 |
Resumo: | Under natural conditions, many fish species, such as freshwater tropical reofilics, voluntarily restrict their food supply during the period before reproduction. Mature females fed with commercial food were divided in two groups four months before their reproduction period. One group was fed with 3% biomass/day of food, while for the other group food was restricted 50% of that amount. During two consecutive reproductive cycles females from both groups were induced to spawn, and the reproductive performance and visceral fat index were compared as well. Females from restricted treatment showed better results after hormonal injection and produced larger eggs after spawning, although the visceral fat index was significantly smaller (P < 0.05). The spawn weight, fertility and embryonic survivals were not different among groups during the two years |
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Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227Efeito da restrição alimentar sobre o desempenho reprodutivo das fêmeas de yamu Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227Brycon siebenthalaerestrição alimentaríndice de gordura visceralreprodução5.04.03.00-1 Nutrição e Alimentação AnimalUnder natural conditions, many fish species, such as freshwater tropical reofilics, voluntarily restrict their food supply during the period before reproduction. Mature females fed with commercial food were divided in two groups four months before their reproduction period. One group was fed with 3% biomass/day of food, while for the other group food was restricted 50% of that amount. During two consecutive reproductive cycles females from both groups were induced to spawn, and the reproductive performance and visceral fat index were compared as well. Females from restricted treatment showed better results after hormonal injection and produced larger eggs after spawning, although the visceral fat index was significantly smaller (P < 0.05). The spawn weight, fertility and embryonic survivals were not different among groups during the two yearsAlgumas espécies de peixes, tais como os reofílicos tropicais, apresentam uma restrição alimentar voluntária durante o período pré-reprodutivo, quando se encontram no ambiente natural. Fêmeas maduras alimentadas com ração comercial foram divididas em dois grupos quatro meses antes do período reprodutivo. Um grupo foi alimentado com o equivalente a 3% da biomassa/dia, enquanto o outro recebeu a metade desta quantia. Fêmeas originárias dos dois grupos foram induzidas à desova durante dois períodos reprodutivos simultâneos, quando foi comparada a performance reprodutiva e o índice de gordura visceral. Fêmeas provenientes do tratamento com restrição alimentar mostraram melhores resultados após o tratamento de indução hormonal, produzindo óvulos maiores na desova, enquanto que o índice de gordura visceral foi menor (P < 0,05). A fecundidade absoluta foi menor no grupo de fêmeas restritas no segundo ciclo reprodutivo. O peso da desova, a taxa de fertilidade e de sobrevivência dos embriões foi semelhante entre os dois gruposEditora da Universidade Estadual de Maringá2008-03-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/122710.4025/actascianimsci.v27i2.1227Acta Scientiarum. Animal Sciences; Vol 27 No 2 (2005); 235-239Acta Scientiarum. Animal Sciences; v. 27 n. 2 (2005); 235-2391807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1227/660Arias Castellanos, José AlfredoZaniboni-Filho, EvoyPardo-Carrasco, Sandra ClemenciaVasquez-Torres, WalterAtencio-Garcia, Victor Julioinfo:eu-repo/semantics/openAccess2024-05-17T13:03:22Zoai:periodicos.uem.br/ojs:article/1227Revistahttp://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:2024-05-17T13:03:22Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 Efeito da restrição alimentar sobre o desempenho reprodutivo das fêmeas de yamu Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 |
title |
Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 |
spellingShingle |
Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 Arias Castellanos, José Alfredo Brycon siebenthalae restrição alimentar índice de gordura visceral reprodução 5.04.03.00-1 Nutrição e Alimentação Animal |
title_short |
Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 |
title_full |
Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 |
title_fullStr |
Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 |
title_full_unstemmed |
Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 |
title_sort |
Effect of food restriction in spawning of yamú females Brycon siebenthalae (Osteichthyes, Characidae) - DOI: 10.4025/actascianimsci.v27i2.1227 |
author |
Arias Castellanos, José Alfredo |
author_facet |
Arias Castellanos, José Alfredo Zaniboni-Filho, Evoy Pardo-Carrasco, Sandra Clemencia Vasquez-Torres, Walter Atencio-Garcia, Victor Julio |
author_role |
author |
author2 |
Zaniboni-Filho, Evoy Pardo-Carrasco, Sandra Clemencia Vasquez-Torres, Walter Atencio-Garcia, Victor Julio |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Arias Castellanos, José Alfredo Zaniboni-Filho, Evoy Pardo-Carrasco, Sandra Clemencia Vasquez-Torres, Walter Atencio-Garcia, Victor Julio |
dc.subject.por.fl_str_mv |
Brycon siebenthalae restrição alimentar índice de gordura visceral reprodução 5.04.03.00-1 Nutrição e Alimentação Animal |
topic |
Brycon siebenthalae restrição alimentar índice de gordura visceral reprodução 5.04.03.00-1 Nutrição e Alimentação Animal |
description |
Under natural conditions, many fish species, such as freshwater tropical reofilics, voluntarily restrict their food supply during the period before reproduction. Mature females fed with commercial food were divided in two groups four months before their reproduction period. One group was fed with 3% biomass/day of food, while for the other group food was restricted 50% of that amount. During two consecutive reproductive cycles females from both groups were induced to spawn, and the reproductive performance and visceral fat index were compared as well. Females from restricted treatment showed better results after hormonal injection and produced larger eggs after spawning, although the visceral fat index was significantly smaller (P < 0.05). The spawn weight, fertility and embryonic survivals were not different among groups during the two years |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-03-20 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1227 10.4025/actascianimsci.v27i2.1227 |
url |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1227 |
identifier_str_mv |
10.4025/actascianimsci.v27i2.1227 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1227/660 |
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 27 No 2 (2005); 235-239 Acta Scientiarum. Animal Sciences; v. 27 n. 2 (2005); 235-239 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_ |
1799315356923199488 |