Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning
The Pacific oyster (Crassostrea gigas) culture has been expanding, thereby leading to a greater importance of hatcheries. Broodstock conditioning is very important in the hatchery process, in which diet composition may have a strong influence on the offspring production and quality. Therefore, the c...
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ftzbmed:oai:frl.publisso.de:frl:6426256 2023-10-09T21:50:53+02:00 Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning Cardoso, Carlos Gomes, Romina Rato, Ana Joaquim, Sandra Machado, Jorge Gonçalves, José Fernando Vaz-Pires, Paulo Magnoni, Leonardo Matias, Domitília Coelho, Inês Delgado, Inês Castanheira, Isabel Matos, Joana Ozório, Rodrigo Bandarra, Narcisa Afonso, Cláudia 2019 https://repository.publisso.de/resource/frl:6426256 https://doi.org/10.1002/fsn3.1044 eng eng https://repository.publisso.de/resource/frl:6426256 https://doi.org/10.1002/fsn3.1044 https://creativecommons.org/licenses/by/4.0/ Food Science & Nutrition, 7(8):2494-2504 seaweed Pacific oyster dietary effects elemental composition bioaccessibility microalgae Zeitschriftenartikel 2019 ftzbmed https://doi.org/10.1002/fsn3.1044 2023-09-10T22:08:29Z The Pacific oyster (Crassostrea gigas) culture has been expanding, thereby leading to a greater importance of hatcheries. Broodstock conditioning is very important in the hatchery process, in which diet composition may have a strong influence on the offspring production and quality. Therefore, the current study evaluated elemental composition and bioaccessibility of oysters fed different ratios of dietary seaweed (SW) and microalgae. The dietary conditioning consisted of direct replacement of microalgae by SW at four substitution levels (0%, 25%, 50%, and 100% diet). It was observed that oysters fed 100% SW had the highest levels of Be, Cu, Zn, Sr, and Cd. The most important trend was a concentration decline of most elements with progressively lower levels of SW substitution for microalgae in the feeds. No Cd or Pb hazard (contents below 1.0 mg/kg for Cd and 1.5 mg/kg for Pb) was found in oyster meat. Regarding elemental bioaccessibility, values were similar, near 100% in the cases of Cu, Br, and I. Only for Mn and Pb, bioaccessibility percentages deviated more from 100%. Indeed, the value for Pb was 50% ± 7% (initial group), and for Mn, all values were equal or lower than 29% ± 2% (final group of oysters fed microalgae). It was observed that Mn, Cd, and Pb bioaccessibility increased with a growing share of microalgal biomass in the feed. Therefore, this study showed that SW incorporation into the feed influences elemental composition and bioaccessibility of the oysters. Article in Journal/Newspaper Crassostrea gigas Pacific oyster PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Pacific Food Science & Nutrition 7 8 2495 2504 |
institution |
Open Polar |
collection |
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
seaweed Pacific oyster dietary effects elemental composition bioaccessibility microalgae |
spellingShingle |
seaweed Pacific oyster dietary effects elemental composition bioaccessibility microalgae Cardoso, Carlos Gomes, Romina Rato, Ana Joaquim, Sandra Machado, Jorge Gonçalves, José Fernando Vaz-Pires, Paulo Magnoni, Leonardo Matias, Domitília Coelho, Inês Delgado, Inês Castanheira, Isabel Matos, Joana Ozório, Rodrigo Bandarra, Narcisa Afonso, Cláudia Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning |
topic_facet |
seaweed Pacific oyster dietary effects elemental composition bioaccessibility microalgae |
description |
The Pacific oyster (Crassostrea gigas) culture has been expanding, thereby leading to a greater importance of hatcheries. Broodstock conditioning is very important in the hatchery process, in which diet composition may have a strong influence on the offspring production and quality. Therefore, the current study evaluated elemental composition and bioaccessibility of oysters fed different ratios of dietary seaweed (SW) and microalgae. The dietary conditioning consisted of direct replacement of microalgae by SW at four substitution levels (0%, 25%, 50%, and 100% diet). It was observed that oysters fed 100% SW had the highest levels of Be, Cu, Zn, Sr, and Cd. The most important trend was a concentration decline of most elements with progressively lower levels of SW substitution for microalgae in the feeds. No Cd or Pb hazard (contents below 1.0 mg/kg for Cd and 1.5 mg/kg for Pb) was found in oyster meat. Regarding elemental bioaccessibility, values were similar, near 100% in the cases of Cu, Br, and I. Only for Mn and Pb, bioaccessibility percentages deviated more from 100%. Indeed, the value for Pb was 50% ± 7% (initial group), and for Mn, all values were equal or lower than 29% ± 2% (final group of oysters fed microalgae). It was observed that Mn, Cd, and Pb bioaccessibility increased with a growing share of microalgal biomass in the feed. Therefore, this study showed that SW incorporation into the feed influences elemental composition and bioaccessibility of the oysters. |
format |
Article in Journal/Newspaper |
author |
Cardoso, Carlos Gomes, Romina Rato, Ana Joaquim, Sandra Machado, Jorge Gonçalves, José Fernando Vaz-Pires, Paulo Magnoni, Leonardo Matias, Domitília Coelho, Inês Delgado, Inês Castanheira, Isabel Matos, Joana Ozório, Rodrigo Bandarra, Narcisa Afonso, Cláudia |
author_facet |
Cardoso, Carlos Gomes, Romina Rato, Ana Joaquim, Sandra Machado, Jorge Gonçalves, José Fernando Vaz-Pires, Paulo Magnoni, Leonardo Matias, Domitília Coelho, Inês Delgado, Inês Castanheira, Isabel Matos, Joana Ozório, Rodrigo Bandarra, Narcisa Afonso, Cláudia |
author_sort |
Cardoso, Carlos |
title |
Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning |
title_short |
Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning |
title_full |
Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning |
title_fullStr |
Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning |
title_full_unstemmed |
Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning |
title_sort |
elemental composition and bioaccessibility of farmed oysters (crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning |
publishDate |
2019 |
url |
https://repository.publisso.de/resource/frl:6426256 https://doi.org/10.1002/fsn3.1044 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Food Science & Nutrition, 7(8):2494-2504 |
op_relation |
https://repository.publisso.de/resource/frl:6426256 https://doi.org/10.1002/fsn3.1044 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/fsn3.1044 |
container_title |
Food Science & Nutrition |
container_volume |
7 |
container_issue |
8 |
container_start_page |
2495 |
op_container_end_page |
2504 |
_version_ |
1779313965363363840 |