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dc.contributor.authorCastro-Ruiz, Diana
dc.contributor.authorAndree, Karl B.
dc.contributor.authorSolovyev, Mikhail M.
dc.contributor.authorFernández-Méndez, Christian
dc.contributor.authorGarcía-Dávila, Carmen
dc.contributor.authorCahu, Chantal
dc.contributor.authorGisbert, Enric
dc.contributor.authorDarias, Maria J.
dc.contributor.otherProducció Animalca
dc.date.accessioned2021-03-04T09:20:51Z
dc.date.available2021-03-04T09:20:51Z
dc.date.issued2021-02-02
dc.identifier.citationCastro-Ruiz, Diana, Karl B. Andree, Mikhail M. Solovyev, Christian Fernández-Méndez, Carmen García-Dávila, Chantal Cahu, Enric Gisbert, and Maria J. Darias. 2021. "The Digestive Function Of Pseudoplatystoma Punctifer Early Juveniles Is Differentially Modulated By Dietary Protein, Lipid And Carbohydrate Content And Their Ratios". Animals 11 (2): 369. doi:10.3390/ani11020369.ca
dc.identifier.issn2076-2615ca
dc.identifier.urihttp://hdl.handle.net/20.500.12327/1176
dc.description.abstractPseudoplatystoma punctifer is an Amazonian catfish highly appreciated for its high flesh quality, size, and commercial value. Its aquaculture is pursued to satisfy the demands of an increasing population in the region. However, knowledge of the nutritional needs during the early life stages is necessary for improving growth and reducing the incidence of cannibalism, factors that limit the success of its commercial farming. This study aimed at evaluating the influence of four diets containing different protein and lipid levels (30:15, 30:10, 45:15, or 45:10 in %) in the digestive physiology and performance of early juveniles. The results showed that the dietary protein:lipid as well as carbohydrate levels and ratios influenced differently the whole-body proximate composition, the digestive physiology and development, and hence growth and survival. The 45:15 diet promoted the best growth, survival, and the most rapid development of the digestive system, as shown at histological (higher number of hepatocytes, goblet cells in the anterior intestine and enterocytes in all intestinal portions, and longer folds in the posterior intestine), molecular (highest amylase, lipoprotein lipase, phospholipase, trypsinogen, and pepsinogen gene expression), and biochemical (highest lipase and pepsin activities and higher alkaline phosphatase:leucine alanine peptidase activity ratio) levels. Lipids were favored over carbohydrates as source of energy, with lipids promoting a protein-sparing effect at adequate energy:protein ratio. Carbohydrate content higher than 25% was excessive for this species, leading to unbalanced lipid metabolism and fat deposition in the liver.ca
dc.format.extent27ca
dc.language.isoengca
dc.publisherMDPIca
dc.relation.ispartofAnimalsca
dc.rightsAttribution 4.0 Internationalca
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleThe Digestive Function of Pseudoplatystoma punctifer Early Juveniles Is Differentially Modulated by Dietary Protein, Lipid and Carbohydrate Content and Their Ratiosca
dc.typeinfo:eu-repo/semantics/articleca
dc.description.versioninfo:eu-repo/semantics/publishedVersionca
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapca
dc.relation.projectIDMICIU/Programa Estatal de I+D+I orientada a los retos de la sociedad/117RT0521/ES/Estrategias de desarrollo y mejora de la producción de larvas de peces en Iberoamerica/LARVAplusca
dc.subject.udc637ca
dc.identifier.doihttps://doi.org/10.3390/ani11020369ca
dc.contributor.groupAqüiculturaca


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