Vis enkel innførsel

dc.contributor.authorPiccinetti, Chiara Carla
dc.contributor.authorGrasso, Lorenzo
dc.contributor.authorMaradonna, Francesca
dc.contributor.authorRadaelli, Giuseppe
dc.contributor.authorBallarin, Cristina
dc.contributor.authorChemello, Giulia
dc.contributor.authorEvjemo, Jan Ove
dc.contributor.authorCarnevali, Oliana
dc.contributor.authorOlivotto, Ike
dc.date.accessioned2018-06-28T12:58:37Z
dc.date.available2018-06-28T12:58:37Z
dc.date.created2017-08-07T11:14:58Z
dc.date.issued2017
dc.identifier.citationAquaculture Research. 2017, 48 (5), 2567-2580.nb_NO
dc.identifier.issn1355-557X
dc.identifier.urihttp://hdl.handle.net/11250/2503642
dc.description.abstractBallan wrasse (Labrus bergylta) is a specialized cleaner fish used in salmon farms as a biological treatment against sea lice. Its commercial rearing is at present mostly experimental. A number of key aspects, including the molecular and physiological mechanisms that promote its growth and development, are still largely unexplored. In this study histological, biometric, biochemical and molecular approaches are combined for the first time to investigate the changes in growth (insulin-like growth factor 1 and 2 and myostatin) and stress (heat shock protein 70 and cortisol) markers that occur during ballan wrasse larval development by relating them to larval stages and feed changes. The real-time PCR data demonstrated that igf1 transcripts rose from 1 day post-hatching (dph) and were no longer detectable 38 dph, whereas igf2 and myostatin transcripts were low and stable until 28 dph, then rose in late larval stages. The biometric and histological data matched the molecular findings, documenting rapid growth and development of the larval digestive tract and assimilation ability. Cortisol was lowest at hatching, it rose slightly at first feeding, and then increased during larval development; a similar trend was detected for hsp70 gene expression. The low cortisol levels found at the earliest larval stages reflect a poor stress-coping ability, a feature that may actually protect larvae from the elevated metabolic demands involved by stress responses and promote faster growth and survival. The present data can be applied to improve the rearing performances of this important cleaner species and reduce captures from the wild.nb_NO
dc.language.isoengnb_NO
dc.publisherWileynb_NO
dc.titleGrowth and stress factors in ballan wrasse (Labrus bergylta) larval developmentnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber2567-2580nb_NO
dc.source.volume48nb_NO
dc.source.journalAquaculture Researchnb_NO
dc.source.issue5nb_NO
dc.identifier.doi10.1111/are.13093
dc.identifier.cristin1484492
dc.description.localcodeThis article will not be available due to copyright restrictions (c) 2016 by Wileynb_NO
cristin.unitcode194,66,10,0
cristin.unitnameInstitutt for biologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel