Impact of early-life rearing history on gut microbiome succession and performance of Nile tilapia

Abstract Background Fish gut microbial colonisation starts during larval stage and plays an important role in host’s growth and health. To what extent first colonisation could influence the gut microbiome succession and growth in later life remains unknown. In this study, Nile tilapia embryos were i...

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Autores principales:	Yale Deng, Fotini Kokou, Ep H. Eding, Marc C. J. Verdegem
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Biofloc system Flow-through system Nutrient digestibility Growth performance Legacy effect Microbial interactions Veterinary medicine SF600-1100 Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/c0617270030540aa93b4a9a65e530edb
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spelling	oai:doaj.org-article:c0617270030540aa93b4a9a65e530edb2021-11-28T12:26:26ZImpact of early-life rearing history on gut microbiome succession and performance of Nile tilapia10.1186/s42523-021-00145-w2524-4671https://doaj.org/article/c0617270030540aa93b4a9a65e530edb2021-11-01T00:00:00Zhttps://doi.org/10.1186/s42523-021-00145-whttps://doaj.org/toc/2524-4671Abstract Background Fish gut microbial colonisation starts during larval stage and plays an important role in host’s growth and health. To what extent first colonisation could influence the gut microbiome succession and growth in later life remains unknown. In this study, Nile tilapia embryos were incubated in two different environments, a flow-through system (FTS) and a biofloc system (BFS); hatched larvae were subsequently cultured in the systems for 14 days of feeding (dof). Fish were then transferred to one common recirculating aquaculture system (RAS1, common garden, 15–62 dof), followed by a growth trial in another RAS (RAS2, growth trial, 63–105 dof). In RAS2, fish were fed with two types of diet, differing in non-starch polysaccharide content. Our aim was to test the effect of rearing environment on the gut microbiome development, nutrient digestibility and growth performance of Nile tilapia during post-larvae stages. Results Larvae cultured in the BFS showed better growth and different gut microbiome, compared to FTS. After the common garden, the gut microbiome still showed differences in species composition, while body weight was similar. Long-term effects of early life rearing history on fish gut microbiome composition, nutrient digestibility, nitrogen and energy balances were not observed. Still, BFS-reared fish had more gut microbial interactions than FTS-reared fish. A temporal effect was observed in gut microbiome succession during fish development, although a distinct number of core microbiome remained present throughout the experimental period. Conclusion Our results indicated that the legacy effect of first microbial colonisation of the fish gut gradually disappeared during host development, with no differences in gut microbiome composition and growth performance observed in later life after culture in a common environment. However, early life exposure of larvae to biofloc consistently increased the microbial interactions in the gut of juvenile Nile tilapia and might possibly benefit gut health.Yale DengFotini KokouEp H. EdingMarc C. J. VerdegemBMCarticleBiofloc systemFlow-through systemNutrient digestibilityGrowth performanceLegacy effectMicrobial interactionsVeterinary medicineSF600-1100MicrobiologyQR1-502ENAnimal Microbiome, Vol 3, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biofloc system Flow-through system Nutrient digestibility Growth performance Legacy effect Microbial interactions Veterinary medicine SF600-1100 Microbiology QR1-502
spellingShingle	Biofloc system Flow-through system Nutrient digestibility Growth performance Legacy effect Microbial interactions Veterinary medicine SF600-1100 Microbiology QR1-502 Yale Deng Fotini Kokou Ep H. Eding Marc C. J. Verdegem Impact of early-life rearing history on gut microbiome succession and performance of Nile tilapia
description	Abstract Background Fish gut microbial colonisation starts during larval stage and plays an important role in host’s growth and health. To what extent first colonisation could influence the gut microbiome succession and growth in later life remains unknown. In this study, Nile tilapia embryos were incubated in two different environments, a flow-through system (FTS) and a biofloc system (BFS); hatched larvae were subsequently cultured in the systems for 14 days of feeding (dof). Fish were then transferred to one common recirculating aquaculture system (RAS1, common garden, 15–62 dof), followed by a growth trial in another RAS (RAS2, growth trial, 63–105 dof). In RAS2, fish were fed with two types of diet, differing in non-starch polysaccharide content. Our aim was to test the effect of rearing environment on the gut microbiome development, nutrient digestibility and growth performance of Nile tilapia during post-larvae stages. Results Larvae cultured in the BFS showed better growth and different gut microbiome, compared to FTS. After the common garden, the gut microbiome still showed differences in species composition, while body weight was similar. Long-term effects of early life rearing history on fish gut microbiome composition, nutrient digestibility, nitrogen and energy balances were not observed. Still, BFS-reared fish had more gut microbial interactions than FTS-reared fish. A temporal effect was observed in gut microbiome succession during fish development, although a distinct number of core microbiome remained present throughout the experimental period. Conclusion Our results indicated that the legacy effect of first microbial colonisation of the fish gut gradually disappeared during host development, with no differences in gut microbiome composition and growth performance observed in later life after culture in a common environment. However, early life exposure of larvae to biofloc consistently increased the microbial interactions in the gut of juvenile Nile tilapia and might possibly benefit gut health.
format	article
author	Yale Deng Fotini Kokou Ep H. Eding Marc C. J. Verdegem
author_facet	Yale Deng Fotini Kokou Ep H. Eding Marc C. J. Verdegem
author_sort	Yale Deng
title	Impact of early-life rearing history on gut microbiome succession and performance of Nile tilapia
title_short	Impact of early-life rearing history on gut microbiome succession and performance of Nile tilapia
title_full	Impact of early-life rearing history on gut microbiome succession and performance of Nile tilapia
title_fullStr	Impact of early-life rearing history on gut microbiome succession and performance of Nile tilapia
title_full_unstemmed	Impact of early-life rearing history on gut microbiome succession and performance of Nile tilapia
title_sort	impact of early-life rearing history on gut microbiome succession and performance of nile tilapia
publisher	BMC
publishDate	2021
url	https://doaj.org/article/c0617270030540aa93b4a9a65e530edb
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Impact of early-life rearing history on gut microbiome succession and performance of Nile tilapia

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