Ploidy influences on metabolic substrate deposition of rainbow trout

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dc.creatorAline Dal`Olio Gomes
dc.creatorVanessa Aparecida Rocha Oliveira Vieira
dc.creatorYara Aiko Tabata
dc.creatorNeuza Sumico Takahashi
dc.creatorRenata Guimarães Moreira
dc.creatorCristiéle da Silva Ribeiro
dc.date2020
dc.date.accessioned2026-07-07T03:58:37Z
dc.descriptionTriploid fish are usually sterile. Thus, the energy and nutrients intended for sexual maturation may be available to enhance flesh quality and physical growth. The present study aimed to investigate differences in the metabolic substrates, lipids and proteins, between storage tissues from diploid and triploid female rainbow trout. Monthly, metabolic substrates were quantified in liver, muscle, and ovaries, which were collected during the first reproductive cycle. In general, it was possible to identify a seasonal and similar deposition of metabolites in different tissues of 2n and 3n females, mainly at early stages of gonadal maturation. However, from the stages 5-6, the ovaries showed great differences between ploidies, with higher concentration of lipids and protein in 2n females. This result reflects the incorporation of vitellogenin in oocytes, which is a process that does not occur in 3n females. It was possible to observe seasonal hepato-somatic index changes in 2n females, with higher values observed in the post-ovulatory stage, and the triploid animals showed lower values compared to 2n, with no seasonal difference. Viscero-somatic index can reflect the mobilization of substrates, with higher values found for 2n females in stage 5-6, which is the period of active mobilization of tissue substrates.
dc.formatapplication/pdf
dc.identifier1806-2636
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303162575001
dc.identifierhttps://www.redalyc.org/journal/3031/303162575001/
dc.identifierhttps://www.redalyc.org/journal/3031/303162575001/html/
dc.identifierhttps://www.redalyc.org/journal/3031/303162575001/303162575001.epub
dc.identifierhttps://www.redalyc.org/journal/3031/303162575001/movil
dc.identifier10.4025/actascianimsci.v42i1.44580
dc.identifier.urihttp://hdl.handle.net/123456789/449252
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3031
dc.rightsActa Scientiarum. Animal Sciences
dc.sourceActa Scientiarum. Animal Sciences (Brasil) Vol.42
dc.subjectAgrociencias
dc.titlePloidy influences on metabolic substrate deposition of rainbow trout
dc.typeartículo científico

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