Partition and metabolic fate of dietary glycerol in muscles and liver of juvenile tilapia

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dc.creatorDiego Vicente da Costa
dc.creatorJorge Dias
dc.creatorRita Colen
dc.creatorPriscila Vieira e Rosa
dc.creatorSofia Engrola
dc.date.accessioned2022-12-01T13:11:03Z
dc.date.accessioned2025-09-08T23:17:47Z
dc.date.available2022-12-01T13:11:03Z
dc.date.issued2017-02-07
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1080/1745039X.2017.1281579
dc.identifier.issn1745-039X
dc.identifier.urihttps://hdl.handle.net/1843/47616
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofArchives of Animal Nutrition
dc.rightsAcesso Restrito
dc.subjectTilápia (Peixe)
dc.subjectBiodisponibilidade
dc.subjectPeixes - Alimentação e rações
dc.subjectMetabolismo energético
dc.subjectGlicerina
dc.titlePartition and metabolic fate of dietary glycerol in muscles and liver of juvenile tilapia
dc.typeArtigo de periódico
local.citation.epage174
local.citation.issue2
local.citation.spage165
local.citation.volume71
local.description.resumoThis study investigated the effect of dietary glycerol on the metabolism of juvenile tilapia (Oreochromis mossambicus) and to determine its metabolic fate. The experimental diets contained 0% (Group CON), 5% (Group G5) and 15% glycerol (Group G15) and were fed for 40 d to apparent satiation, three times a day. For the metabolism trials, six fish from each treatment were randomly chosen and tube-fed with five pellets labelled with 14C-glycerol [14C(U)] in order to evaluate the absorption, catabolism, retention and partition of glycerol in muscle and liver. Group G5 presented the highest 14C-glycerol retention and the lowest catabolism, with no significant differences between Groups CON and G15. In Group CON, the highest percentage of 14C was incorporated in muscle lipids; with no significant differences between Groups G5 and G15. Furthermore, no treatment effects were found for hepatic 14C-lipid and for 14C in hepatic and muscle non-lipid extract. In the non-lipid and non-protein fraction, the highest radioactivity was measured in livers of Group G5, however no significant differences were found for this fraction between Groups CON and G15 in liver and for all treatments in muscle. The results of the present study can have practical implications in diet formulations for tilapia and for other aquaculture species with similar feeding pattern since juvenile tilapia are able to metabolise dietary glycerol into lipids, protein and/or carbohydrates and to use it as energy source.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://www.tandfonline.com/doi/abs/10.1080/1745039X.2017.1281579?journalCode=gaan20

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