Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/10930 |
Resumo: | The common octopus (Octopus vulgaris) has aroused great interest in recent years as a new species for aquaculture. The current research is focused on developing a formulated feed, although a proper diet management has also promoted rearing success of other commercial cultured species. It is documented that wild animals eat depending on prey availability and most experience fasting in nature. Hence, O. vulgaris subadults were subjected to two different feeding schemes, with a similar semi-moist diet, including either 2 (2FDb, control) or 3 (3FDb) non-consecutive days of fasting per week. Growth, feed efficiency (FE), digestibility and condition were assessed after 56 days of rearing. Both feeding schemes promoted similar growth and digestibility (P>0.05), 100% of survival and higher food-intake after fasting. Interestingly, feed efficiency (FE) was enhanced with the 3 fasting days scheme (58.6% vs. 48.3% for 2FDb scheme; P<0.05). Results might indicate that O. vulgaris has the ability to compensate fasting days through an increase in food intake on the subsequent day or a better use of its reserves. Moreover, a reduction on feeding days might promote a decrease in production costs at commercial scale. |
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Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feedOctopus vulgarisFeeding protocolFastingGrowthFeed efficiencyFormulated dietPerformanceThe common octopus (Octopus vulgaris) has aroused great interest in recent years as a new species for aquaculture. The current research is focused on developing a formulated feed, although a proper diet management has also promoted rearing success of other commercial cultured species. It is documented that wild animals eat depending on prey availability and most experience fasting in nature. Hence, O. vulgaris subadults were subjected to two different feeding schemes, with a similar semi-moist diet, including either 2 (2FDb, control) or 3 (3FDb) non-consecutive days of fasting per week. Growth, feed efficiency (FE), digestibility and condition were assessed after 56 days of rearing. Both feeding schemes promoted similar growth and digestibility (P>0.05), 100% of survival and higher food-intake after fasting. Interestingly, feed efficiency (FE) was enhanced with the 3 fasting days scheme (58.6% vs. 48.3% for 2FDb scheme; P<0.05). Results might indicate that O. vulgaris has the ability to compensate fasting days through an increase in food intake on the subsequent day or a better use of its reserves. Moreover, a reduction on feeding days might promote a decrease in production costs at commercial scale.INIA-Project RTA2012-00072-00-00SCIENCEDOMAIN InternationalSapientiaRodríguez-González, TâniaValverde, JesúsSykes, António V.García García, Benjamín2018-11-09T21:13:55Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/10930eng2348-039410.9734/AIR/2018/39175info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:22:38Zoai:sapientia.ualg.pt:10400.1/10930Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:02:29.776942Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed |
title |
Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed |
spellingShingle |
Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed Rodríguez-González, Tânia Octopus vulgaris Feeding protocol Fasting Growth Feed efficiency Formulated diet Performance |
title_short |
Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed |
title_full |
Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed |
title_fullStr |
Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed |
title_full_unstemmed |
Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed |
title_sort |
Common octopus (Octopus vulgaris) performance when including fasting on feeding schemes: preliminary data regarding a formulated feed |
author |
Rodríguez-González, Tânia |
author_facet |
Rodríguez-González, Tânia Valverde, Jesús Sykes, António V. García García, Benjamín |
author_role |
author |
author2 |
Valverde, Jesús Sykes, António V. García García, Benjamín |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Rodríguez-González, Tânia Valverde, Jesús Sykes, António V. García García, Benjamín |
dc.subject.por.fl_str_mv |
Octopus vulgaris Feeding protocol Fasting Growth Feed efficiency Formulated diet Performance |
topic |
Octopus vulgaris Feeding protocol Fasting Growth Feed efficiency Formulated diet Performance |
description |
The common octopus (Octopus vulgaris) has aroused great interest in recent years as a new species for aquaculture. The current research is focused on developing a formulated feed, although a proper diet management has also promoted rearing success of other commercial cultured species. It is documented that wild animals eat depending on prey availability and most experience fasting in nature. Hence, O. vulgaris subadults were subjected to two different feeding schemes, with a similar semi-moist diet, including either 2 (2FDb, control) or 3 (3FDb) non-consecutive days of fasting per week. Growth, feed efficiency (FE), digestibility and condition were assessed after 56 days of rearing. Both feeding schemes promoted similar growth and digestibility (P>0.05), 100% of survival and higher food-intake after fasting. Interestingly, feed efficiency (FE) was enhanced with the 3 fasting days scheme (58.6% vs. 48.3% for 2FDb scheme; P<0.05). Results might indicate that O. vulgaris has the ability to compensate fasting days through an increase in food intake on the subsequent day or a better use of its reserves. Moreover, a reduction on feeding days might promote a decrease in production costs at commercial scale. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-09T21:13:55Z 2018 2018-01-01T00:00:00Z |
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://hdl.handle.net/10400.1/10930 |
url |
http://hdl.handle.net/10400.1/10930 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2348-0394 10.9734/AIR/2018/39175 |
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 |
SCIENCEDOMAIN International |
publisher.none.fl_str_mv |
SCIENCEDOMAIN International |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133258566336512 |