Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt
A comparative nutritional study with post-smolt Atlantic salmon (Salmo salar L.) was performed over six weeks to investigate similarities between three suppliers of synthetic His at two dietary levels in a formulated extruded pellet for salmon, and how they affected feed utilization, fish performanc...
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The University of Bergen
2022
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Online Access: | https://hdl.handle.net/11250/2761774 |
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ftunivbergen:oai:bora.uib.no:11250/2761774 2023-05-15T15:30:22+02:00 Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt Karlsen, Knut Martin 2022-06-01 application/pdf https://hdl.handle.net/11250/2761774 eng eng The University of Bergen https://hdl.handle.net/11250/2761774 Copyright the Author. All rights reserved Atlantic salmon: Efficacy: Histidine: N-Acetyl-histidine: Cataracts: Dietary requirements 759906 Master thesis 2022 ftunivbergen 2023-03-14T17:39:29Z A comparative nutritional study with post-smolt Atlantic salmon (Salmo salar L.) was performed over six weeks to investigate similarities between three suppliers of synthetic His at two dietary levels in a formulated extruded pellet for salmon, and how they affected feed utilization, fish performance, cataract development, digestibility, and biological efficacy. His source or dietary level of His did not affect feed utilization. Digestibility was similar between all experimental groups and the control group. No difference were found in organ indexes for His source, but the dietary level of His showed reduced growth in organ indexes for high supplementation level versus medium and control. Differences existed between experimental groups and the control group for fish performance, but these were assumed to be non-related to nutrition due to their inconsistency. His supplementation reduced cataract severity, while no difference was found between His sources. Tissue levels of His, anserine and NAH concentrations were similar between His sources. Masteroppgave i fiskehelse FISK399 MAMN-FISK Master Thesis Atlantic salmon Salmo salar University of Bergen: Bergen Open Research Archive (BORA-UiB) |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Atlantic salmon: Efficacy: Histidine: N-Acetyl-histidine: Cataracts: Dietary requirements 759906 |
spellingShingle |
Atlantic salmon: Efficacy: Histidine: N-Acetyl-histidine: Cataracts: Dietary requirements 759906 Karlsen, Knut Martin Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt |
topic_facet |
Atlantic salmon: Efficacy: Histidine: N-Acetyl-histidine: Cataracts: Dietary requirements 759906 |
description |
A comparative nutritional study with post-smolt Atlantic salmon (Salmo salar L.) was performed over six weeks to investigate similarities between three suppliers of synthetic His at two dietary levels in a formulated extruded pellet for salmon, and how they affected feed utilization, fish performance, cataract development, digestibility, and biological efficacy. His source or dietary level of His did not affect feed utilization. Digestibility was similar between all experimental groups and the control group. No difference were found in organ indexes for His source, but the dietary level of His showed reduced growth in organ indexes for high supplementation level versus medium and control. Differences existed between experimental groups and the control group for fish performance, but these were assumed to be non-related to nutrition due to their inconsistency. His supplementation reduced cataract severity, while no difference was found between His sources. Tissue levels of His, anserine and NAH concentrations were similar between His sources. Masteroppgave i fiskehelse FISK399 MAMN-FISK |
format |
Master Thesis |
author |
Karlsen, Knut Martin |
author_facet |
Karlsen, Knut Martin |
author_sort |
Karlsen, Knut Martin |
title |
Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt |
title_short |
Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt |
title_full |
Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt |
title_fullStr |
Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt |
title_full_unstemmed |
Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt |
title_sort |
biological availability of different commercially available histidine products in feed for atlantic salmon smolt |
publisher |
The University of Bergen |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/2761774 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
https://hdl.handle.net/11250/2761774 |
op_rights |
Copyright the Author. All rights reserved |
_version_ |
1766360813567737856 |