Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas)
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: | https://hdl.handle.net/10216/120510 |
Resumo: | The current study evaluated the microalgae replacement by dry macroalgae (Ulva rigida) in the reproductive success and biochemical composition of the Pacific oyster (Crassostrea gigas) during broodstock conditioning. Five nutritional regimes were tested: 100% macroalgae (diet 1), 50% macroalgae+50% microalgae (diet 2), 25% macroalgae+75% microalgae (diet 3) and 100% microalgae (diet 4). An unfed group was used as a negative control. The microalgae blend was composed of 33% Isochrysis galbana and 67% diatoms (75% Skeletonema costatum+25% Chaetoceros calcitrans). Gonadal maturation was reflected in the physiological condition of the individuals. All treatments, except diet 1, showed an increase in condition index and were fully matured at the end of the trial, with the best physiological condition observed in oysters fed diet 3 and diet 4. Protein and total lipid content increased during the conditioning period, whereas glycogen content decreased. Oysters conditioned with diet 3 had higher protein and total lipid content and lower glycogen content than the other treatments. In addition, diet 3 showed the highest percentage of viable veliger larvae. The current study demonstrated that it is possible to replace 25% of microalgae with macroalgae in the broodstock conditioning, minimizing the operative cost in bivalve hatcheries. © 2018. Published by The Company of Biologists |
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Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas)animal experimentanimal tissueArticlebiochemical compositioncarbohydrate intakeChaetocerosChaetoceros calcitranscontrolled studyCrassostrea gigasdietfat intakefemalefertilizationgametogenesisglycogen analysisgonad developmenthatcheryhistologyIsochrysis galbanamaturationmicroalganonhumanprotein contentprotein intakereproductive successSkeletonemaSkeletonema costatumspawningUlvaUlva rigidaveligerThe current study evaluated the microalgae replacement by dry macroalgae (Ulva rigida) in the reproductive success and biochemical composition of the Pacific oyster (Crassostrea gigas) during broodstock conditioning. Five nutritional regimes were tested: 100% macroalgae (diet 1), 50% macroalgae+50% microalgae (diet 2), 25% macroalgae+75% microalgae (diet 3) and 100% microalgae (diet 4). An unfed group was used as a negative control. The microalgae blend was composed of 33% Isochrysis galbana and 67% diatoms (75% Skeletonema costatum+25% Chaetoceros calcitrans). Gonadal maturation was reflected in the physiological condition of the individuals. All treatments, except diet 1, showed an increase in condition index and were fully matured at the end of the trial, with the best physiological condition observed in oysters fed diet 3 and diet 4. Protein and total lipid content increased during the conditioning period, whereas glycogen content decreased. Oysters conditioned with diet 3 had higher protein and total lipid content and lower glycogen content than the other treatments. In addition, diet 3 showed the highest percentage of viable veliger larvae. The current study demonstrated that it is possible to replace 25% of microalgae with macroalgae in the broodstock conditioning, minimizing the operative cost in bivalve hatcheries. © 2018. Published by The Company of BiologistsCompany of Biologists20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/120510eng2046639010.1242/bio.035923Rato A.Joaquim S.Tavares T.G.Martins Z.E.Guedes A.C.Pereira L.F.Machado J.Matias A.M.Gonçalves J.F.M.Vaz-Pires P.Magnoni L.J.Ozório R.O.A.Matias D.info: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:RCAAP2023-11-29T15:52:44Zoai:repositorio-aberto.up.pt:10216/120510Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:34:26.917795Repositório 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 |
Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas) |
title |
Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas) |
spellingShingle |
Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas) Rato A. animal experiment animal tissue Article biochemical composition carbohydrate intake Chaetoceros Chaetoceros calcitrans controlled study Crassostrea gigas diet fat intake female fertilization gametogenesis glycogen analysis gonad development hatchery histology Isochrysis galbana maturation microalga nonhuman protein content protein intake reproductive success Skeletonema Skeletonema costatum spawning Ulva Ulva rigida veliger |
title_short |
Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas) |
title_full |
Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas) |
title_fullStr |
Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas) |
title_full_unstemmed |
Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas) |
title_sort |
Viability of dietary substitution of live microalgae with dry Ulva rigida in broodstock conditioning of the Pacific oyster (Crassostrea gigas) |
author |
Rato A. |
author_facet |
Rato A. Joaquim S. Tavares T.G. Martins Z.E. Guedes A.C. Pereira L.F. Machado J. Matias A.M. Gonçalves J.F.M. Vaz-Pires P. Magnoni L.J. Ozório R.O.A. Matias D. |
author_role |
author |
author2 |
Joaquim S. Tavares T.G. Martins Z.E. Guedes A.C. Pereira L.F. Machado J. Matias A.M. Gonçalves J.F.M. Vaz-Pires P. Magnoni L.J. Ozório R.O.A. Matias D. |
author2_role |
author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Rato A. Joaquim S. Tavares T.G. Martins Z.E. Guedes A.C. Pereira L.F. Machado J. Matias A.M. Gonçalves J.F.M. Vaz-Pires P. Magnoni L.J. Ozório R.O.A. Matias D. |
dc.subject.por.fl_str_mv |
animal experiment animal tissue Article biochemical composition carbohydrate intake Chaetoceros Chaetoceros calcitrans controlled study Crassostrea gigas diet fat intake female fertilization gametogenesis glycogen analysis gonad development hatchery histology Isochrysis galbana maturation microalga nonhuman protein content protein intake reproductive success Skeletonema Skeletonema costatum spawning Ulva Ulva rigida veliger |
topic |
animal experiment animal tissue Article biochemical composition carbohydrate intake Chaetoceros Chaetoceros calcitrans controlled study Crassostrea gigas diet fat intake female fertilization gametogenesis glycogen analysis gonad development hatchery histology Isochrysis galbana maturation microalga nonhuman protein content protein intake reproductive success Skeletonema Skeletonema costatum spawning Ulva Ulva rigida veliger |
description |
The current study evaluated the microalgae replacement by dry macroalgae (Ulva rigida) in the reproductive success and biochemical composition of the Pacific oyster (Crassostrea gigas) during broodstock conditioning. Five nutritional regimes were tested: 100% macroalgae (diet 1), 50% macroalgae+50% microalgae (diet 2), 25% macroalgae+75% microalgae (diet 3) and 100% microalgae (diet 4). An unfed group was used as a negative control. The microalgae blend was composed of 33% Isochrysis galbana and 67% diatoms (75% Skeletonema costatum+25% Chaetoceros calcitrans). Gonadal maturation was reflected in the physiological condition of the individuals. All treatments, except diet 1, showed an increase in condition index and were fully matured at the end of the trial, with the best physiological condition observed in oysters fed diet 3 and diet 4. Protein and total lipid content increased during the conditioning period, whereas glycogen content decreased. Oysters conditioned with diet 3 had higher protein and total lipid content and lower glycogen content than the other treatments. In addition, diet 3 showed the highest percentage of viable veliger larvae. The current study demonstrated that it is possible to replace 25% of microalgae with macroalgae in the broodstock conditioning, minimizing the operative cost in bivalve hatcheries. © 2018. Published by The Company of Biologists |
publishDate |
2018 |
dc.date.none.fl_str_mv |
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 |
https://hdl.handle.net/10216/120510 |
url |
https://hdl.handle.net/10216/120510 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
20466390 10.1242/bio.035923 |
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 |
Company of Biologists |
publisher.none.fl_str_mv |
Company of Biologists |
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) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136253221797889 |