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Lactobacillus strains isolated from oysters improve the production of Crassostrea gigas larvae

dc.contributorCONACYT: Project no. 254648en-US
dc.contributorGraduate fellowship 593764.en-US
dc.creatorSavin-Amador, Macario
dc.creatorRojas-Contreras, Maurilia
dc.creatorArce-Amézquita, Pablo Misael
dc.creatorRangel-Dávalos, Carlos
dc.creatorVázquez-Juárez, Ricardo
dc.date2021-08-31
dc.date.accessioned2021-09-07T13:34:52Z
dc.date.available2021-09-07T13:34:52Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol49-issue4-fulltext-2672
dc.identifier10.3856/vol49-issue4-fulltext-2672
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/175869
dc.descriptionOne of the main problems in laboratories of oyster seed production occurs in the stage of settlement or fixation and metamorphosis of the larvae. The organisms develop drastic morphological and physiological changes at this stage, exposing them to attack by pathogenic microorganisms. Numerous studies indicate that before larval settlement to a substrate, they require bacteria to stimulate and induce the process. In this study, Japanese oyster (Crassostrea gigas) larvae were fed with combinations of microalgae and bacteria previously selected for their probiotic potential; their impact on survival, growth, and settlement was evaluated. Larvae D of 12 days old were provided by a private company and transported to the laboratory under controlled conditions. Probiotic bacteria Lactobacillus plantarum 69Cr, L. fermentum 101Cc, and L. casei 43Cg were reactivated on MRS and applied at a concentration of 1×104 CFU mL-1. Microalgae Isochrysis galbana and Chaetoceros calcitrans were grown in F2 medium and supplied at a concentration of 3×104 cells mL-1. Results showed, in all treatments, a survival range of 39-53%, growth of 300-310 μm, and 34-56.5% settlement. However, the best bacteria combined with I. galbana and C. calcitrans was L. plantarum 69Cr with a 54% survival, 310 μm growth, and 56.5% settlement. It is concluded that the combination of L. plantarum 69Cr with I. galbana and C. calcitrans has the potential to be used in the production of Japanese oyster larvae.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol49-issue4-fulltext-2672/1446
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol49-issue4-fulltext-2672/2092
dc.rightsCopyright (c) 2021 Latin American Journal of Aquatic Researchen-US
dc.sourceLatin American Journal of Aquatic Research; Vol 49, No 4 (2021); 551-564en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 49, No 4 (2021); 551-564es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectCrassostrea gigas; larvae; Lactobacillus plantarum; settlement; probiotic; aquacultureen-US
dc.titleLactobacillus strains isolated from oysters improve the production of Crassostrea gigas larvaeen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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