Consistent changes in the intestinal microbiota of Atlantic salmon fed insect meal diets
Abstract 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...
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ftdatacite:10.6084/m9.figshare.c.5786632 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 https://dx.doi.org/10.6084/m9.figshare.c.5786632 https://springernature.figshare.com/collections/Consistent_changes_in_the_intestinal_microbiota_of_Atlantic_salmon_fed_insect_meal_diets/5786632 unknown figshare https://dx.doi.org/10.1186/s42523-021-00159-4 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Genetics FOS Biological sciences article Collection 2022 ftdatacite https://doi.org/10.6084/m9.figshare.c.5786632 https://doi.org/10.1186/s42523-021-00159-4 2022-02-09T11:52:22Z Abstract 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. Article in Journal/Newspaper Atlantic salmon Salmo salar DataCite Metadata Store (German National Library of Science and Technology) |
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Genetics FOS Biological sciences |
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Genetics FOS Biological sciences 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 |
topic_facet |
Genetics FOS Biological sciences |
description |
Abstract 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. |
format |
Article in Journal/Newspaper |
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 |
figshare |
publishDate |
2022 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.5786632 https://springernature.figshare.com/collections/Consistent_changes_in_the_intestinal_microbiota_of_Atlantic_salmon_fed_insect_meal_diets/5786632 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
https://dx.doi.org/10.1186/s42523-021-00159-4 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.5786632 https://doi.org/10.1186/s42523-021-00159-4 |
_version_ |
1766362279004078080 |