Impact of Putative Probiotics on Growth, Behavior, and the Gut Microbiome of Farmed Arctic Char (Salvelinus alpinus)
Beneficial bacteria promise to promote the health and productivity of farmed fish species. However, the impact on host physiology is largely strain-dependent, and studies on Arctic char ( Salvelinus alpinus ), a commercially farmed salmonid species, are lacking. In this study, 10 candidate probiotic...
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Online Access: | http://dx.doi.org/10.3389/fmicb.2022.912473 https://www.frontiersin.org/articles/10.3389/fmicb.2022.912473/full |
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crfrontiers:10.3389/fmicb.2022.912473 2024-05-19T07:35:19+00:00 Impact of Putative Probiotics on Growth, Behavior, and the Gut Microbiome of Farmed Arctic Char (Salvelinus alpinus) Knobloch, Stephen Skírnisdóttir, Sigurlaug Dubois, Marianne Kolypczuk, Laetitia Leroi, Françoise Leeper, Alexandra Passerini, Delphine Marteinsson, Viggó Þ. 2022 http://dx.doi.org/10.3389/fmicb.2022.912473 https://www.frontiersin.org/articles/10.3389/fmicb.2022.912473/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Microbiology volume 13 ISSN 1664-302X journal-article 2022 crfrontiers https://doi.org/10.3389/fmicb.2022.912473 2024-05-01T06:50:47Z Beneficial bacteria promise to promote the health and productivity of farmed fish species. However, the impact on host physiology is largely strain-dependent, and studies on Arctic char ( Salvelinus alpinus ), a commercially farmed salmonid species, are lacking. In this study, 10 candidate probiotic strains were subjected to in vitro assays, small-scale growth trials, and behavioral analysis with juvenile Arctic char to examine the impact of probiotic supplementation on fish growth, behavior and the gut microbiome. Most strains showed high tolerance to gastric juice and fish bile acid, as well as high auto-aggregation activity, which are important probiotic characteristics. However, they neither markedly altered the core gut microbiome, which was dominated by three bacterial species, nor detectably colonized the gut environment after the 4-week probiotic treatment. Despite a lack of long-term colonization, the presence of the bacterial strains showed either beneficial or detrimental effects on the host through growth rate enhancement or reduction, as well as changes in fish motility under confinement. This study offers insights into the effect of bacterial strains on a salmonid host and highlights three strains, Carnobacterium divergens V41, Pediococcus acidilactici ASG16, and Lactiplantibacillus plantarum ISCAR-07436, for future research into growth promotion of salmonid fish through probiotic supplementation. Article in Journal/Newspaper Arctic Salvelinus alpinus Frontiers (Publisher) Frontiers in Microbiology 13 |
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Beneficial bacteria promise to promote the health and productivity of farmed fish species. However, the impact on host physiology is largely strain-dependent, and studies on Arctic char ( Salvelinus alpinus ), a commercially farmed salmonid species, are lacking. In this study, 10 candidate probiotic strains were subjected to in vitro assays, small-scale growth trials, and behavioral analysis with juvenile Arctic char to examine the impact of probiotic supplementation on fish growth, behavior and the gut microbiome. Most strains showed high tolerance to gastric juice and fish bile acid, as well as high auto-aggregation activity, which are important probiotic characteristics. However, they neither markedly altered the core gut microbiome, which was dominated by three bacterial species, nor detectably colonized the gut environment after the 4-week probiotic treatment. Despite a lack of long-term colonization, the presence of the bacterial strains showed either beneficial or detrimental effects on the host through growth rate enhancement or reduction, as well as changes in fish motility under confinement. This study offers insights into the effect of bacterial strains on a salmonid host and highlights three strains, Carnobacterium divergens V41, Pediococcus acidilactici ASG16, and Lactiplantibacillus plantarum ISCAR-07436, for future research into growth promotion of salmonid fish through probiotic supplementation. |
format |
Article in Journal/Newspaper |
author |
Knobloch, Stephen Skírnisdóttir, Sigurlaug Dubois, Marianne Kolypczuk, Laetitia Leroi, Françoise Leeper, Alexandra Passerini, Delphine Marteinsson, Viggó Þ. |
spellingShingle |
Knobloch, Stephen Skírnisdóttir, Sigurlaug Dubois, Marianne Kolypczuk, Laetitia Leroi, Françoise Leeper, Alexandra Passerini, Delphine Marteinsson, Viggó Þ. Impact of Putative Probiotics on Growth, Behavior, and the Gut Microbiome of Farmed Arctic Char (Salvelinus alpinus) |
author_facet |
Knobloch, Stephen Skírnisdóttir, Sigurlaug Dubois, Marianne Kolypczuk, Laetitia Leroi, Françoise Leeper, Alexandra Passerini, Delphine Marteinsson, Viggó Þ. |
author_sort |
Knobloch, Stephen |
title |
Impact of Putative Probiotics on Growth, Behavior, and the Gut Microbiome of Farmed Arctic Char (Salvelinus alpinus) |
title_short |
Impact of Putative Probiotics on Growth, Behavior, and the Gut Microbiome of Farmed Arctic Char (Salvelinus alpinus) |
title_full |
Impact of Putative Probiotics on Growth, Behavior, and the Gut Microbiome of Farmed Arctic Char (Salvelinus alpinus) |
title_fullStr |
Impact of Putative Probiotics on Growth, Behavior, and the Gut Microbiome of Farmed Arctic Char (Salvelinus alpinus) |
title_full_unstemmed |
Impact of Putative Probiotics on Growth, Behavior, and the Gut Microbiome of Farmed Arctic Char (Salvelinus alpinus) |
title_sort |
impact of putative probiotics on growth, behavior, and the gut microbiome of farmed arctic char (salvelinus alpinus) |
publisher |
Frontiers Media SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/fmicb.2022.912473 https://www.frontiersin.org/articles/10.3389/fmicb.2022.912473/full |
genre |
Arctic Salvelinus alpinus |
genre_facet |
Arctic Salvelinus alpinus |
op_source |
Frontiers in Microbiology volume 13 ISSN 1664-302X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmicb.2022.912473 |
container_title |
Frontiers in Microbiology |
container_volume |
13 |
_version_ |
1799473919629983744 |