Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets
BACKGROUND: Being part of fish's natural diets, insects have become a practical alternative feed ingredient for aquaculture. While nutritional values of insects have been extensively studied in various fish species, their impact on the fish microbiota remains to be fully explored. In an 8-week...
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ftpubmed:oai:pubmedcentral.nih.gov:8750867 2023-05-15T15:31:45+02:00 Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets Li, Yanxian Gajardo, Karina Jaramillo-Torres, Alexander Kortner, Trond M. Krogdahl, Åshild 2022-01-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8750867/ http://www.ncbi.nlm.nih.gov/pubmed/35012688 https://doi.org/10.1186/s42523-021-00159-4 en eng BioMed Central http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8750867/ http://www.ncbi.nlm.nih.gov/pubmed/35012688 http://dx.doi.org/10.1186/s42523-021-00159-4 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Anim Microbiome Research Article Text 2022 ftpubmed https://doi.org/10.1186/s42523-021-00159-4 2022-01-16T01:55:14Z BACKGROUND: Being part of fish's natural diets, insects have become a practical alternative feed ingredient for aquaculture. While nutritional values of insects have been extensively studied in various fish species, their impact on the fish microbiota remains to be fully explored. In an 8-week freshwater feeding trial, Atlantic salmon (Salmo salar) were fed either a commercially relevant reference diet or an insect meal diet wherein black soldier fly (Hermetia illucens) larvae meal comprised 60% of total ingredients. Microbiota of digesta and mucosa origin from the proximal and distal intestine were collected and profiled along with feed and water samples. RESULTS: The insect meal diet markedly modulated the salmon intestinal microbiota. Salmon fed the insect meal diet showed similar or lower alpha-diversity indices in the digesta but higher alpha-diversity indices in the mucosa. A group of bacterial genera, dominated by members of the Bacillaceae family, was enriched in salmon fed the insect meal diet, which confirms our previous findings in a seawater feeding trial. We also found that microbiota in the intestine closely resembled that of the feeds but was distinct from the water microbiota. Notably, bacterial genera associated with the diet effects were also present in the feeds. CONCLUSIONS: We conclude that salmon fed the insect meal diets show consistent changes in the intestinal microbiota. The next challenge is to evaluate the extent to which these alterations are attributable to feed microbiota and dietary nutrients, and what these changes mean for fish physiology and health. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s42523-021-00159-4. Text Atlantic salmon Salmo salar PubMed Central (PMC) Animal Microbiome 4 1 |
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Research Article |
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Research Article Li, Yanxian Gajardo, Karina Jaramillo-Torres, Alexander Kortner, Trond M. Krogdahl, Åshild Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets |
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Research Article |
description |
BACKGROUND: Being part of fish's natural diets, insects have become a practical alternative feed ingredient for aquaculture. While nutritional values of insects have been extensively studied in various fish species, their impact on the fish microbiota remains to be fully explored. In an 8-week freshwater feeding trial, Atlantic salmon (Salmo salar) were fed either a commercially relevant reference diet or an insect meal diet wherein black soldier fly (Hermetia illucens) larvae meal comprised 60% of total ingredients. Microbiota of digesta and mucosa origin from the proximal and distal intestine were collected and profiled along with feed and water samples. RESULTS: The insect meal diet markedly modulated the salmon intestinal microbiota. Salmon fed the insect meal diet showed similar or lower alpha-diversity indices in the digesta but higher alpha-diversity indices in the mucosa. A group of bacterial genera, dominated by members of the Bacillaceae family, was enriched in salmon fed the insect meal diet, which confirms our previous findings in a seawater feeding trial. We also found that microbiota in the intestine closely resembled that of the feeds but was distinct from the water microbiota. Notably, bacterial genera associated with the diet effects were also present in the feeds. CONCLUSIONS: We conclude that salmon fed the insect meal diets show consistent changes in the intestinal microbiota. The next challenge is to evaluate the extent to which these alterations are attributable to feed microbiota and dietary nutrients, and what these changes mean for fish physiology and health. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s42523-021-00159-4. |
format |
Text |
author |
Li, Yanxian Gajardo, Karina Jaramillo-Torres, Alexander Kortner, Trond M. Krogdahl, Åshild |
author_facet |
Li, Yanxian Gajardo, Karina Jaramillo-Torres, Alexander Kortner, Trond M. Krogdahl, Åshild |
author_sort |
Li, Yanxian |
title |
Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets |
title_short |
Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets |
title_full |
Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets |
title_fullStr |
Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets |
title_full_unstemmed |
Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets |
title_sort |
consistent changes in the intestinal microbiota of atlantic salmon fed insect meal diets |
publisher |
BioMed Central |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8750867/ http://www.ncbi.nlm.nih.gov/pubmed/35012688 https://doi.org/10.1186/s42523-021-00159-4 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Anim Microbiome |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8750867/ http://www.ncbi.nlm.nih.gov/pubmed/35012688 http://dx.doi.org/10.1186/s42523-021-00159-4 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1186/s42523-021-00159-4 |
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Animal Microbiome |
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