Sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infection
Abstract Background Farmed fish food with reduced fish-derived products are gaining growing interest due to the ecological impact of fish-derived protein utilization and the necessity to increase aquaculture sustainability. Although different terrestrial plant proteins could replace fishmeal protein...
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doaj-ba3e137c8fe14a44a98abc775ab0caa12021-07-11T11:36:16ZengBMCAnimal Microbiome2524-46712021-07-013111310.1186/s42523-021-00107-2Sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infectionDavid Pérez-Pascual0Ana Elena Pérez-Cobas1Dimitri Rigaudeau2Tatiana Rochat3Jean-François Bernardet4Sandrine Skiba-Cassy5Yann Marchand6Eric Duchaud7Jean-Marc Ghigo8Unité de Génétique des Biofilms, Institut Pasteur, UMR CNRS 2001Biologie des Bactéries Intracellulaires Institut Pasteur, UMR CNRS 3525, 75015Unité Infectiologie Expérimentale Rongeurs et Poissons, INRAE, Université Paris-SaclayUniversité Paris-Saclay, INRAE, UVSQ, VIMUniversité Paris-Saclay, INRAE, UVSQ, VIMINRAE, Univ Pau & Pays Adour, E2S UPPA, NUMEALe GouessantUniversité Paris-Saclay, INRAE, UVSQ, VIMUnité de Génétique des Biofilms, Institut Pasteur, UMR CNRS 2001Abstract Background Farmed fish food with reduced fish-derived products are gaining growing interest due to the ecological impact of fish-derived protein utilization and the necessity to increase aquaculture sustainability. Although different terrestrial plant proteins could replace fishmeal proteins, their use is associated with adverse effects. Here, we investigated how diets composed of terrestrial vegetal sources supplemented with proteins originating from insect, yeast or terrestrial animal by-products affect rainbow trout (Onchorynchus mykiss) gut microbiota composition, growth performance and resistance to bacterial infection by the fish pathogen Flavobacterium psychrophilum responsible for frequent outbreaks in aquaculture settings. Results We showed that the tested regimes significantly increased gut bacterial richness compared to full vegetal or commercial-like diets, and that vegetal diet supplemented with insect and yeast proteins improves growth performance compared to full vegetal diet without altering rainbow trout susceptibility to F. psychrophilum infection. Conclusion Our results demonstrate that the use of insect and yeast protein complements to vegetal fish feeds maintain microbiota functions, growth performance and fish health, therefore identifying promising alternative diets to improve aquaculture’s sustainability.https://doi.org/10.1186/s42523-021-00107-2Rainbow troutGut microbiotaSustainable aquaculture dietFlavobacterium psychrophilum |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
David Pérez-Pascual Ana Elena Pérez-Cobas Dimitri Rigaudeau Tatiana Rochat Jean-François Bernardet Sandrine Skiba-Cassy Yann Marchand Eric Duchaud Jean-Marc Ghigo |
spellingShingle |
David Pérez-Pascual Ana Elena Pérez-Cobas Dimitri Rigaudeau Tatiana Rochat Jean-François Bernardet Sandrine Skiba-Cassy Yann Marchand Eric Duchaud Jean-Marc Ghigo Sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infection Animal Microbiome Rainbow trout Gut microbiota Sustainable aquaculture diet Flavobacterium psychrophilum |
author_facet |
David Pérez-Pascual Ana Elena Pérez-Cobas Dimitri Rigaudeau Tatiana Rochat Jean-François Bernardet Sandrine Skiba-Cassy Yann Marchand Eric Duchaud Jean-Marc Ghigo |
author_sort |
David Pérez-Pascual |
title |
Sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infection |
title_short |
Sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infection |
title_full |
Sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infection |
title_fullStr |
Sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infection |
title_full_unstemmed |
Sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infection |
title_sort |
sustainable plant-based diets promote rainbow trout gut microbiota richness and do not alter resistance to bacterial infection |
publisher |
BMC |
series |
Animal Microbiome |
issn |
2524-4671 |
publishDate |
2021-07-01 |
description |
Abstract Background Farmed fish food with reduced fish-derived products are gaining growing interest due to the ecological impact of fish-derived protein utilization and the necessity to increase aquaculture sustainability. Although different terrestrial plant proteins could replace fishmeal proteins, their use is associated with adverse effects. Here, we investigated how diets composed of terrestrial vegetal sources supplemented with proteins originating from insect, yeast or terrestrial animal by-products affect rainbow trout (Onchorynchus mykiss) gut microbiota composition, growth performance and resistance to bacterial infection by the fish pathogen Flavobacterium psychrophilum responsible for frequent outbreaks in aquaculture settings. Results We showed that the tested regimes significantly increased gut bacterial richness compared to full vegetal or commercial-like diets, and that vegetal diet supplemented with insect and yeast proteins improves growth performance compared to full vegetal diet without altering rainbow trout susceptibility to F. psychrophilum infection. Conclusion Our results demonstrate that the use of insect and yeast protein complements to vegetal fish feeds maintain microbiota functions, growth performance and fish health, therefore identifying promising alternative diets to improve aquaculture’s sustainability. |
topic |
Rainbow trout Gut microbiota Sustainable aquaculture diet Flavobacterium psychrophilum |
url |
https://doi.org/10.1186/s42523-021-00107-2 |
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