Heritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weight
Abstract Nile 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 (U crit, in cm s−1) is a potential indi...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-90418-w |
| _version_ | 1829464753374756864 |
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| author | Samuel Bekele Mengistu Arjan P. Palstra Han A. Mulder John A. H. Benzie Trong Quoc Trinh Chantal Roozeboom Hans Komen |
| author_facet | Samuel Bekele Mengistu Arjan P. Palstra Han A. Mulder John A. H. Benzie Trong Quoc Trinh Chantal Roozeboom Hans Komen |
| author_sort | Samuel Bekele Mengistu |
| collection | DOAJ |
| description | Abstract Nile 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 (U crit, in cm s−1) is a potential indicator for O2UE. Our objectives were to estimate variance components for U crit and fish size at swim testing early in life, and genetic correlations (r g ) between U crit with harvest weight (HW) and daily growth coefficient (DGC) later after grow-out in a non-aerated pond. Substantial heritability was found for absolute U crit (0.48). The estimated r g between absolute U crit and fish size at testing were all strong and positive (range 0.72–0.83). The estimated r g between absolute U crit and HW, and absolute U crit and DGC were − 0.21 and − 0.63 respectively, indicating that fish with higher absolute U crit had lower growth in the non-aerated pond as compared to fish with lower absolute U crit. These results suggest a juvenile trade-off between swimming and growth performance where fish with high U crit early in life show slower growth later under conditions of limited oxygen availability. We conclude that U crit in Nile tilapia is heritable and can be used to predict growth performance. |
| first_indexed | 2024-12-13T16:42:38Z |
| format | Article |
| id | doaj.art-fd0d38d151aa4e0b8954835143debffa |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-13T16:42:38Z |
| publishDate | 2021-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-fd0d38d151aa4e0b8954835143debffa2022-12-21T23:38:15ZengNature PortfolioScientific Reports2045-23222021-05-0111111010.1038/s41598-021-90418-wHeritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weightSamuel Bekele Mengistu0Arjan P. Palstra1Han A. Mulder2John A. H. Benzie3Trong Quoc Trinh4Chantal Roozeboom5Hans Komen6Animal Breeding and Genomics, Wageningen University & ResearchAnimal Breeding and Genomics, Wageningen University & ResearchAnimal Breeding and Genomics, Wageningen University & ResearchWorldFishWorldFishAnimal Breeding and Genomics, Wageningen University & ResearchAnimal Breeding and Genomics, Wageningen University & ResearchAbstract Nile 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 (U crit, in cm s−1) is a potential indicator for O2UE. Our objectives were to estimate variance components for U crit and fish size at swim testing early in life, and genetic correlations (r g ) between U crit with harvest weight (HW) and daily growth coefficient (DGC) later after grow-out in a non-aerated pond. Substantial heritability was found for absolute U crit (0.48). The estimated r g between absolute U crit and fish size at testing were all strong and positive (range 0.72–0.83). The estimated r g between absolute U crit and HW, and absolute U crit and DGC were − 0.21 and − 0.63 respectively, indicating that fish with higher absolute U crit had lower growth in the non-aerated pond as compared to fish with lower absolute U crit. These results suggest a juvenile trade-off between swimming and growth performance where fish with high U crit early in life show slower growth later under conditions of limited oxygen availability. We conclude that U crit in Nile tilapia is heritable and can be used to predict growth performance.https://doi.org/10.1038/s41598-021-90418-w |
| spellingShingle | Samuel Bekele Mengistu Arjan P. Palstra Han A. Mulder John A. H. Benzie Trong Quoc Trinh Chantal Roozeboom Hans Komen Heritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weight Scientific Reports |
| title | Heritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weight |
| title_full | Heritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weight |
| title_fullStr | Heritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weight |
| title_full_unstemmed | Heritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weight |
| title_short | Heritable variation in swimming performance in Nile tilapia (Oreochromis niloticus) and negative genetic correlations with growth and harvest weight |
| title_sort | heritable variation in swimming performance in nile tilapia oreochromis niloticus and negative genetic correlations with growth and harvest weight |
| url | https://doi.org/10.1038/s41598-021-90418-w |
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