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dc.creatorMengistu, S.en_US
dc.creatorPalstra, A.en_US
dc.creatorMulder, H.A.en_US
dc.creatorBenzie, J.en_US
dc.creatorTrinh, T.Q.en_US
dc.creatorRoozeboom, C.en_US
dc.creatorKomen, H.en_US
dc.date.accessioned2021-07-13T10:05:00Z
dc.date.available2021-07-13T10:05:00Z
dc.identifier.citationMengistu, S. B. Palstra, A. P. Mulder, H. A. et al. Heritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weight. Sci Rep 11, 11018 (2021). https://doi.org/10.1038/s41598-021-90418-wen_US
dc.identifier.issn2045-2322en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12348/4790
dc.description.abstractNile tilapia is predominantly produced in smallholder ponds without aeration. We hypothesize that Nile tilapia with high oxygen uptake efficiency (O2UE) may perform better under these conditions than Nile tilapia with low O2UE. Critical swimming speed (Ucrit, in cm s−1) is a potential indicator for O2UE. Our objectives were to estimate variance components for Ucrit and fish size at swim testing early in life, and genetic correlations (rg) between Ucrit with harvest weight (HW) and daily growth coefficient (DGC) later after grow-out in a non-aerated pond. Substantial heritability was found for absolute Ucrit (0.48). The estimated rg between absolute Ucrit and fish size at testing were all strong and positive (range 0.72–0.83). The estimated rg between absolute Ucrit and HW, and absolute Ucrit and DGC were − 0.21 and − 0.63 respectively, indicating that fish with higher absolute Ucrit had lower growth in the non-aerated pond as compared to fish with lower absolute Ucrit. These results suggest a juvenile trade-off between swimming and growth performance where fish with high Ucrit early in life show slower growth later under conditions of limited oxygen availability. We conclude that Ucrit in Nile tilapia is heritable and can be used to predict growth performance.en_US
dc.formatPDFen_US
dc.languageenen_US
dc.publisherNATURE RESEARCHen_US
dc.rightsCC-BY-4.0en_US
dc.sourceScientific Reports;11,(2021)en_US
dc.subjectFishen_US
dc.titleHeritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weighten_US
dc.typeJournal Articleen_US
cg.contributor.crpFISHen_US
cg.coverage.regionGlobalen_US
cg.subject.agrovocgeneticsen_US
cg.subject.agrovocphysiologyen_US
cg.contributor.affiliationWageningen University & Research Centreen_US
cg.contributor.affiliationWorldFishen_US
cg.contributor.affiliationHawassa University, College of Agricultureen_US
cg.contributor.affiliationUniversity College Corken_US
cg.identifier.statusOpen accessen_US
cg.identifier.ISIindexedISI indexeden_US
cg.contribution.worldfishauthorBenzie, J.en_US
cg.contribution.worldfishauthorTrinh, T.Q.en_US
cg.description.themeResilient small-scale fisheriesen_US
dc.identifier.doihttps://dx.doi.org/10.1038/s41598-021-90418-wen_US
cg.creator.idJohn Benzie: 0000-0001-9599-8683en_US


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