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dc.contributor.authorPlaza, Ignacioes_ES
dc.contributor.authorGarcía, José Luises_ES
dc.contributor.authorVillarroel, Morrises_ES
dc.date.accessioned2018-05-25T09:12:15Z-
dc.date.available2018-05-25T09:12:15Z-
dc.date.issued2018-03-
dc.identifier.citationSpanish Journal of Agricultural Research 16:1 (2018)es_ES
dc.identifier.issn1695-971X-
dc.identifier.urihttp://hdl.handle.net/10261/165100-
dc.description7p.-2 fig.-4 tab.es_ES
dc.description.abstractSeveral recent studies have shown that Arthrospira sp. supplementation of feeds has a beneficial effect on fish health and growth, but less is known about its possible effects on stress responsiveness. The present study was designed to evaluate using Arthrospira platensis as a feed supplement for Oreochromis niloticus fry, reared in recirculating aquaculture systems. Two isocaloric and isonitrogenous fishmeal-based diets were prepared with 0% and 1% A. platensis and fed to fry, approximately 10 mg live weight at the beginning of the experimental period (n=16 tanks, 8 tanks per treatment), at a feeding rate of 6% live weight, four meals a day for 50 d. The weight gain per tank, specific growth rate and feed conversion ratio were similar among treatments but A. platensis supplementation significantly increased survival (p<0.05). Stress responsiveness was measured in all fish from 12 tanks using a non-invasive two-choice test. All fish from one home tank (n=6 tanks per treatment), were placed into a shaded tank where oxygen levels were slowly reduced. A doorway was then opened to a second illuminated tank with normal oxygen levels and the number of fish that left the home tank were counted. The fish fed A. platensis stayed significantly (p=0.001) longer in the home tank (30.20 min ± 13.22) than controls (17.35 min ± 8.32), suggesting a lower stress responsiveness and a higher tolerance to hypoxia.es_ES
dc.description.sponsorshipCofunded by the Community of Madrid with structural funds from the European Union FEDER (INSPIRA1, Ref. S2013/ ABI2783).es_ES
dc.language.isoenges_ES
dc.publisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España)es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rightsopenAccesses_ES
dc.subjectFishes_ES
dc.subjectFeed additivees_ES
dc.subjectTwo-choicees_ES
dc.subjectBehavioures_ES
dc.subjectNon-invasivees_ES
dc.titleEffect of spirulina (Arthrospira platensis) supplementation on tilapia (Oreochromis niloticus) growth and stress responsiveness under hypoxiaes_ES
dc.typeartículoes_ES
dc.identifier.doihttp://dx.doi.org/10.5424/sjar/2018161-11698-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.5424/sjar/2018161-11698es_ES
dc.identifier.e-issn2171-9292-
dc.rights.licensehttps://creativecommons.org/licenses/by/4.0/es_ES
dc.contributor.funderComunidad de Madrides_ES
dc.contributor.funderEuropean Commissiones_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/100012818es_ES
dc.contributor.orcidGarcía, José Luis [0000-0002-9238-2485]es_ES
dc.contributor.orcidVillarroel, Morris [0000-0003-2542-3985]es_ES
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