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Dietary nitrogen and fish welfare

2012-02Journal article Restricted access
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dc.contributor.authorConceição, L. E. C.
dc.contributor.authorAragão, C.
dc.contributor.authorDias, J.
dc.contributor.authorCostas, B.
dc.contributor.authorTerova, G.
dc.contributor.authorMartins, C.
dc.contributor.authorTort, L.
dc.date.accessioned2014-07-02T10:46:28Z
dc.date.available2014-07-02T10:46:28Z
dc.date.issued2012-02
dc.date.updated2014-06-27T14:26:01Z
dc.description.abstractLittle research has been done in optimizing the nitrogenous fraction of the fish diets in order to minimize welfare problems. The purpose of this review is to give an overview on how amino acid (AA) metabolism may be affected when fish are under stress and the possible effects on fish welfare when sub-optimal dietary nitrogen formulations are used to feed fish. In addition, it intends to evaluate the current possibilities, and future prospects, of using improved dietary nitrogen formulations to help fish coping with predictable stressful periods. Both metabolomic and genomic evidence show that stressful husbandry conditions affect AA metabolism in fish and may bring an increase in the requirement of indispensable AA. Supplementation in arginine and leucine, but also eventually in lysine, methionine, threonine and glutamine, may have an important role in enhancing the innate immune system. Tryptophan, as precursor for serotonin, modulates aggressive behaviour and feed intake in fish. Bioactive peptides may bring important advances in immunocompetence, disease control and other aspects of welfare of cultured fish. Fishmeal replacement may reduce immune competence, and the full nutritional potential of plant-protein ingredients is attained only after the removal or inactivation of some antinutritional factors. This review shows that AA metabolism is affected when fish are under stress, and this together with sub-optimal dietary nitrogen formulations may affect fish welfare. Furthermore, improved dietary nitrogen formulations may help fish coping with predictable stressful events.por
dc.identifier.citationConceição, L.E.C.; Aragão, C.; Dias, J.; Costas, B.; Terova, G.; Martins, C.; Tort, L.Dietary nitrogen and fish welfare, Fish Physiology and Biochemistry, 38, 1, 119-141, 2012.por
dc.identifier.doihttp://dx.doi.org/ 10.1007/s10695-011-9592-y
dc.identifier.issn0920-1742
dc.identifier.urihttp://hdl.handle.net/10400.1/4611
dc.language.isoporpor
dc.peerreviewedyespor
dc.publisherSpringer Verlagpor
dc.relation.publisherversionhttp://link.springer.com/article/10.1007%2Fs10695-011-9592-ypor
dc.subjectFish welfarepor
dc.subjectProtein nutritionpor
dc.subjectAmino acid requirementspor
dc.subjectTryptophanpor
dc.subjectBioactive peptidespor
dc.subjectAntinutritional factorspor
dc.titleDietary nitrogen and fish welfarepor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage141por
oaire.citation.issue1por
oaire.citation.startPage119por
oaire.citation.titleFish Physiology and Biochemistrypor
oaire.citation.volume38por
person.familyNameAragão
person.givenNameCláudia
person.identifier174173
person.identifier.ciencia-idD01E-0726-9F3E
person.identifier.orcid0000-0002-9217-0183
person.identifier.ridK-2310-2012
person.identifier.scopus-author-id55903315700
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationbc649967-3b39-41dc-8fab-b60c24e65286
relation.isAuthorOfPublication.latestForDiscoverybc649967-3b39-41dc-8fab-b60c24e65286

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