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Authordc.contributor.authorGainza, Oreste 
Authordc.contributor.authorRomero Ormazábal, Jaime 
Cita de ítemdc.identifier.citationScientific Reports 2020, 10(1):2719es_ES
Abstractdc.description.abstractThe white leg Litopenaeus vannamei shrimp is of importance to the eastern Pacific fisheries and aquaculture industry but suffer from diseases such as the recently emerged early mortality syndrome. Many bacterial pathogens have been identified but the L. vannamei microbiota is still poorly known. Using a next-generation sequencing (NGS) approach, this work evaluated the impact of the inclusion in the diet of mannan oligosaccharide, (MOS, 0.5% w/w), over the L. vannamei microbiota and production behavior of L. vannamei under intensive cultivation in Ecuador. The MOS supplementation lasted for 60 days, after which the shrimp in the ponds were harvested, and the production data were collected. MOS improved productivity outcomes by increasing shrimp survival by 30%. NGS revealed quantitative differences in the shrimp microbiota between MOS and control conditions. In the treatment with inclusion of dietary MOS, the predominant phylum was Actinobacteria (28%); while the control group was dominated by the phylum Proteobacteria (30%). MOS has also been linked to an increased prevalence of Lactococcus- and Verrucomicrobiaceae-like bacteria. Furthermore, under the treatment of MOS, the prevalence of potential opportunistic pathogens, like Vibrio, Aeromonas, Bergeyella and Shewanella, was negligible. This may be attributable to MOS blocking the adhesion of pathogens to the surfaces of the host tissues. Together, these findings point to the fact that the performance (survival) improvements of the dietary MOS may be linked to the impact on the microbiota, since bacterial lines with pathogenic potential towards shrimps were excluded in the gut.es_ES
Patrocinadordc.description.sponsorshipComisión Nacional de Investigación Científica y Tecnológica (CONICYT) CONICYT FONDECYT 1171129es_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.uri*
Sourcedc.sourceScientific Reportses_ES
Keywordsdc.subjectPacific white shrimpes_ES
Keywordsdc.subjectIntestinal microbiotaes_ES
Keywordsdc.subjectLitopenaeus vannameies_ES
Keywordsdc.subjectGut microbiotaes_ES
Keywordsdc.subjectPediococcus acidilacticies_ES
Keywordsdc.subjectDietary supplementationes_ES
Keywordsdc.subjectBacterial communitieses_ES
Keywordsdc.subjectGrowth performancees_ES
Keywordsdc.subjectBacillus subtilises_ES
Títulodc.titleEffect of mannan oligosaccharides on the microbiota and productivity parameters of Litopenaeus vannamei shrimp under intensive cultivation in Ecuadores_ES
Document typedc.typeArtículo de revistaes_ES
dcterms.accessRightsdcterms.accessRightsAcceso Abierto
Indexationuchile.indexArtículo de publicación ISIes_ES

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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile