Alternative Protein Sources in the Diet Modulate Microbiota and Functionality in the Distal Intestine of Atlantic Salmon (Salmo salar)
ABSTRACT The present study aimed to investigate whether alternative dietary protein sources modulate the microbial communities in the distal intestine (DI) of Atlantic salmon, and whether alterations in microbiota profiles are reflected in modifications in host intestinal function and health status....
Published in: | Applied and Environmental Microbiology |
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American Society for Microbiology
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Online Access: | http://dx.doi.org/10.1128/aem.02615-16 https://journals.asm.org/doi/pdf/10.1128/AEM.02615-16 |
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crasmicro:10.1128/aem.02615-16 2024-09-15T17:56:09+00:00 Alternative Protein Sources in the Diet Modulate Microbiota and Functionality in the Distal Intestine of Atlantic Salmon (Salmo salar) Gajardo, Karina Jaramillo-Torres, Alexander Kortner, Trond M. Merrifield, Daniel L. Tinsley, John Bakke, Anne Marie Krogdahl, Åshild Björkroth, Johanna 2017 http://dx.doi.org/10.1128/aem.02615-16 https://journals.asm.org/doi/pdf/10.1128/AEM.02615-16 en eng American Society for Microbiology http://creativecommons.org/licenses/by/4.0/ https://journals.asm.org/non-commercial-tdm-license Applied and Environmental Microbiology volume 83, issue 5 ISSN 0099-2240 1098-5336 journal-article 2017 crasmicro https://doi.org/10.1128/aem.02615-16 2024-08-26T04:06:47Z ABSTRACT The present study aimed to investigate whether alternative dietary protein sources modulate the microbial communities in the distal intestine (DI) of Atlantic salmon, and whether alterations in microbiota profiles are reflected in modifications in host intestinal function and health status. A 48-day feeding trial was conducted, in which groups of fish received one of five diets: a reference diet in which fishmeal (diet FM) was the only protein source and four experimental diets with commercially relevant compositions containing alternative ingredients as partial replacements of fishmeal, i.e., poultry meal (diet PM), a mix of soybean meal and wheat gluten (diet SBMWG), a mix of soy protein concentrate and poultry meal (diet SPCPM), and guar meal and wheat gluten (diet GMWG). Samples were taken of DI digesta and mucosa for microbial profiling using high-throughput sequencing and from DI whole tissue for immunohistochemistry and expression profiling of marker genes for gut health. Regardless of diet, there were significant differences between the microbial populations in the digesta and the mucosa in the salmon DI. Microbial richness was higher in the digesta than the mucosa. The digesta-associated bacterial communities were more affected by the diet than the mucosa-associated microbiota. Interestingly, both legume-based diets (SBMWG and GMWG) presented high relative abundance of lactic acid bacteria in addition to alteration in the expression of a salmon gene related to cell proliferation ( pcna ). It was, however, not possible to ascertain the cause-effect relationship between changes in bacterial communities and the host's intestinal responses to the diets. IMPORTANCE The intestine of cultivated Atlantic salmon shows symptoms of compromised function, which are most likely caused by imbalances related to the use of new feed ingredients. Intestinal microbiota profiling may become in the future a valuable endpoint measurement in order to assess fish intestinal health status and effects of diet. The ... Article in Journal/Newspaper Atlantic salmon Salmo salar ASM Journals (American Society for Microbiology) Applied and Environmental Microbiology 83 5 |
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Open Polar |
collection |
ASM Journals (American Society for Microbiology) |
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crasmicro |
language |
English |
description |
ABSTRACT The present study aimed to investigate whether alternative dietary protein sources modulate the microbial communities in the distal intestine (DI) of Atlantic salmon, and whether alterations in microbiota profiles are reflected in modifications in host intestinal function and health status. A 48-day feeding trial was conducted, in which groups of fish received one of five diets: a reference diet in which fishmeal (diet FM) was the only protein source and four experimental diets with commercially relevant compositions containing alternative ingredients as partial replacements of fishmeal, i.e., poultry meal (diet PM), a mix of soybean meal and wheat gluten (diet SBMWG), a mix of soy protein concentrate and poultry meal (diet SPCPM), and guar meal and wheat gluten (diet GMWG). Samples were taken of DI digesta and mucosa for microbial profiling using high-throughput sequencing and from DI whole tissue for immunohistochemistry and expression profiling of marker genes for gut health. Regardless of diet, there were significant differences between the microbial populations in the digesta and the mucosa in the salmon DI. Microbial richness was higher in the digesta than the mucosa. The digesta-associated bacterial communities were more affected by the diet than the mucosa-associated microbiota. Interestingly, both legume-based diets (SBMWG and GMWG) presented high relative abundance of lactic acid bacteria in addition to alteration in the expression of a salmon gene related to cell proliferation ( pcna ). It was, however, not possible to ascertain the cause-effect relationship between changes in bacterial communities and the host's intestinal responses to the diets. IMPORTANCE The intestine of cultivated Atlantic salmon shows symptoms of compromised function, which are most likely caused by imbalances related to the use of new feed ingredients. Intestinal microbiota profiling may become in the future a valuable endpoint measurement in order to assess fish intestinal health status and effects of diet. The ... |
author2 |
Björkroth, Johanna |
format |
Article in Journal/Newspaper |
author |
Gajardo, Karina Jaramillo-Torres, Alexander Kortner, Trond M. Merrifield, Daniel L. Tinsley, John Bakke, Anne Marie Krogdahl, Åshild |
spellingShingle |
Gajardo, Karina Jaramillo-Torres, Alexander Kortner, Trond M. Merrifield, Daniel L. Tinsley, John Bakke, Anne Marie Krogdahl, Åshild Alternative Protein Sources in the Diet Modulate Microbiota and Functionality in the Distal Intestine of Atlantic Salmon (Salmo salar) |
author_facet |
Gajardo, Karina Jaramillo-Torres, Alexander Kortner, Trond M. Merrifield, Daniel L. Tinsley, John Bakke, Anne Marie Krogdahl, Åshild |
author_sort |
Gajardo, Karina |
title |
Alternative Protein Sources in the Diet Modulate Microbiota and Functionality in the Distal Intestine of Atlantic Salmon (Salmo salar) |
title_short |
Alternative Protein Sources in the Diet Modulate Microbiota and Functionality in the Distal Intestine of Atlantic Salmon (Salmo salar) |
title_full |
Alternative Protein Sources in the Diet Modulate Microbiota and Functionality in the Distal Intestine of Atlantic Salmon (Salmo salar) |
title_fullStr |
Alternative Protein Sources in the Diet Modulate Microbiota and Functionality in the Distal Intestine of Atlantic Salmon (Salmo salar) |
title_full_unstemmed |
Alternative Protein Sources in the Diet Modulate Microbiota and Functionality in the Distal Intestine of Atlantic Salmon (Salmo salar) |
title_sort |
alternative protein sources in the diet modulate microbiota and functionality in the distal intestine of atlantic salmon (salmo salar) |
publisher |
American Society for Microbiology |
publishDate |
2017 |
url |
http://dx.doi.org/10.1128/aem.02615-16 https://journals.asm.org/doi/pdf/10.1128/AEM.02615-16 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Applied and Environmental Microbiology volume 83, issue 5 ISSN 0099-2240 1098-5336 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aem.02615-16 |
container_title |
Applied and Environmental Microbiology |
container_volume |
83 |
container_issue |
5 |
_version_ |
1810432355075096576 |