Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.

A feeding experiment was conducted on red porgy alevins to investigate the influence of dietary supplementation with shrimp on pigmentation and lipid composition of carcass (muscle and skin) and eyes. To this purpose, red porgy alevins with an initial mean weight of 2.8±1.3 g were divided into six g...

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Authors: Cejas, Juana Rosa, Almansa, Eduardo, Tejera, N., Jerez, Salvador, Bolaños, A., Lorenzo, A.
Format: article
Publication Date:2003
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/313123
Online Access:http://hdl.handle.net/10261/313123
Access Level:Open access
Keyword:Acuicultura
Centro Oceanográfico de Canarias
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spelling Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.Cejas, Juana RosaAlmansa, EduardoTejera, N.Jerez, SalvadorBolaños, A.Lorenzo, A.AcuiculturaCentro Oceanográfico de CanariasA feeding experiment was conducted on red porgy alevins to investigate the influence of dietary supplementation with shrimp on pigmentation and lipid composition of carcass (muscle and skin) and eyes. To this purpose, red porgy alevins with an initial mean weight of 2.8±1.3 g were divided into six groups. Three groups were fed gilthead seabream commercial pellet (P, 100% pellet), whereas the other three were fed with the commercial pellet and shrimp Pleisonika sp. (PS, 88% pellet:12% shrimp) to provide the diet with a source of carotenoids. After 4 months of feeding, the results showed that PS-fish groups displayed a pink-coloured skin similar to that of the wild fish, whereas P-fish groups showed a dark-grey-coloured skin. Furthermore, a higher total content of carotenoids was found in carcass and eyes from PS-fish groups with respect to P-fish groups. No significant differences in growth, survival or other gross external signs were found between treatments. Total lipid (TL), triacylglycerol (TG), phosphatidylcholine (PC) and phosphatidylethanolamine (PE) of red porgy carcass exhibited a specific fatty acid profile. However, the general patterns of the fatty acid distribution in lipids of carcass and eyes from both groups of fish (P and PS) were similar, and only slight differences were found mainly in carcass for some of the fatty acids. We conclude that the natural carotenoids supplied by the shrimp were effectively assimilated by the red porgy and allowed the cultured fish to acquire a skin coloration similar to that of wild fish.Sí202320232003info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/313123reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Canariasinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3131232026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.
title Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.
spellingShingle Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.
Cejas, Juana Rosa
Acuicultura
Centro Oceanográfico de Canarias
title_short Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.
title_full Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.
title_fullStr Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.
title_full_unstemmed Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.
title_sort Effect of dietary supplementation with shrimp on skin pigmentation and lipid composition of red porgy (Pagrus pagrus) alevins.
dc.creator.none.fl_str_mv Cejas, Juana Rosa
Almansa, Eduardo
Tejera, N.
Jerez, Salvador
Bolaños, A.
Lorenzo, A.
author Cejas, Juana Rosa
author_facet Cejas, Juana Rosa
Almansa, Eduardo
Tejera, N.
Jerez, Salvador
Bolaños, A.
Lorenzo, A.
author_role author
author2 Almansa, Eduardo
Tejera, N.
Jerez, Salvador
Bolaños, A.
Lorenzo, A.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Acuicultura
Centro Oceanográfico de Canarias
topic Acuicultura
Centro Oceanográfico de Canarias
description A feeding experiment was conducted on red porgy alevins to investigate the influence of dietary supplementation with shrimp on pigmentation and lipid composition of carcass (muscle and skin) and eyes. To this purpose, red porgy alevins with an initial mean weight of 2.8±1.3 g were divided into six groups. Three groups were fed gilthead seabream commercial pellet (P, 100% pellet), whereas the other three were fed with the commercial pellet and shrimp Pleisonika sp. (PS, 88% pellet:12% shrimp) to provide the diet with a source of carotenoids. After 4 months of feeding, the results showed that PS-fish groups displayed a pink-coloured skin similar to that of the wild fish, whereas P-fish groups showed a dark-grey-coloured skin. Furthermore, a higher total content of carotenoids was found in carcass and eyes from PS-fish groups with respect to P-fish groups. No significant differences in growth, survival or other gross external signs were found between treatments. Total lipid (TL), triacylglycerol (TG), phosphatidylcholine (PC) and phosphatidylethanolamine (PE) of red porgy carcass exhibited a specific fatty acid profile. However, the general patterns of the fatty acid distribution in lipids of carcass and eyes from both groups of fish (P and PS) were similar, and only slight differences were found mainly in carcass for some of the fatty acids. We conclude that the natural carotenoids supplied by the shrimp were effectively assimilated by the red porgy and allowed the cultured fish to acquire a skin coloration similar to that of wild fish.
publishDate 2003
dc.date.none.fl_str_mv 2003
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/313123
url http://hdl.handle.net/10261/313123
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Canarias
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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