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Effect of three diets on the growth and fatty acid profile of the common ragworm Hediste diversicolor (O.F. Müller, 1776)

2016Journal article Restricted access
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dc.contributor.authorSantos, António
dc.contributor.authorGranada, Luana
dc.contributor.authorBaptista, Teresa
dc.contributor.authorAnjos, Catarina
dc.contributor.authorSimões, Tiago
dc.contributor.authorTecelão, Carla
dc.contributor.authorFidalgo E Costa, Pedro
dc.contributor.authorCosta, José Lino
dc.contributor.authorPombo, Ana
dc.date.accessioned2019-06-25T11:19:14Z
dc.date.available2019-06-25T11:19:14Z
dc.date.issued2016
dc.description.abstractThe polychaete Hediste diversicolor has a high physiological tolerance to extreme environmental factors, being easily farmed and reproduced in different types of conditions. Both in the field and under laboratory conditions, this worm can feed on different types of food. In order to highlight the potential of H. diversicolor for aquaculture, specific growth rate (SGR), daily growth rate (DGR), survival rate and fatty acid profile of juvenile worms, fed with three different diets, were assessed. The experiments were conducted using juvenile polychaete from a controlled reproduction with wild adults. H. diversicolor individuals were fed with two commercial diets, seabream dry feed (Aquagold) and semi-wet pellets for reared sole (Moist Sole), and with a non-processed diet consisting on mackerel's fillets (Trachurus trachurus). Juveniles fed with Aquagold had the highest final individual weight (0.89 ± 0.10 g). The SGR was higher in H. diversicolor fed with Aquagold and Moist Sole, (6.49 ± 0.30% d−1 and 6.54 ± 0.06% d−1, respectively. The highest DGR was observed for juveniles fed with Aquagold (0.146 ± 0.02 g d−1). The survival rate of ragworms under different treatments ranged from 96 to 100%. Regarding the protein content, the Moist Sole diet provided the highest percentage of protein in the reared worms (8.87%). Results showed that the total fat content of the diets was reflected in the fat content of the reared worms. The Moist Sole diet treatment had the highest fat content (2.25%) and individuals fed with seabream dry feed showed similar results (2.18%), while the lowest percentage was observed for the mackerel diet (0.85%). According to the fatty acid profile, the major fatty acids found in the juveniles fed with the three different diets were palmitic (C 16:0), with a higher value in the individuals fed with mackerel's fillets. Oleic (C 18:1 n9), eicosapentaenoic (C 20:5 n3), docosahexaenoic (C 22:6 n3) and stearic (C 18:0) acids presented high values in H. diversicolor fed with all the experimental diets. Statement of Relevance: The common ragworm Hediste diversicolor is a potential high quality fatty acids source for reared fish and shrimp. Previous studies suggested that diet could be a relevant factor affecting the fatty acid composition of this polychaete (Luis and Passos, 1995). This study aimed to assess the effect of different diets on growth and survival of common ragworms juveniles (H. diversicolor), as well as the fatty acid profile and protein content in their tissues, aiming to find an appropriate diet to be used in commercial aquaculture.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.aquaculture.2016.08.022pt_PT
dc.identifier.issn0044-8486
dc.identifier.urihttp://hdl.handle.net/10451/38834
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectAquaculturept_PT
dc.subjectPolychaetept_PT
dc.subjectHediste diversicolor dietspt_PT
dc.subjectSpecific growth ratept_PT
dc.subjectFatty acid profilept_PT
dc.titleEffect of three diets on the growth and fatty acid profile of the common ragworm Hediste diversicolor (O.F. Müller, 1776)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage42pt_PT
oaire.citation.startPage37pt_PT
oaire.citation.titleAquaculturept_PT
oaire.citation.volume465pt_PT
person.familyNameGranada Almeida
person.familyNameBaptista
person.familyNameSimões
person.familyNameTecelão
person.familyNameFidalgo e Costa
person.familyNameCosta
person.familyNamePombo
person.givenNameLuana
person.givenNameTeresa
person.givenNameTiago
person.givenNameCarla
person.givenNamePedro
person.givenNameJosé Lino
person.givenNameAna
person.identifierU-5644-2018
person.identifier712192
person.identifier.ciencia-id431A-F712-709B
person.identifier.ciencia-idA61F-25C1-034A
person.identifier.ciencia-id0D1D-8D1A-A883
person.identifier.ciencia-id9B1D-4AC0-1B03
person.identifier.ciencia-id7519-E986-8350
person.identifier.ciencia-id0F1C-22B0-7990
person.identifier.orcid0000-0002-1382-9243
person.identifier.orcid0000-0003-1168-7461
person.identifier.orcid0000-0002-6107-9790
person.identifier.orcid0000-0003-2423-0495
person.identifier.orcid0000-0003-3957-934X
person.identifier.orcid0000-0002-3843-4635
person.identifier.orcid0000-0003-1397-9206
person.identifier.scopus-author-id56513933800
person.identifier.scopus-author-id7801371939
person.identifier.scopus-author-id6507958996
person.identifier.scopus-author-id7402461424
person.identifier.scopus-author-id56763918700
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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