Physical feed quality and starch content causes a biological response in Atlantic salmon (Salmo salar L)
The aim of this study was to investigate the effect of starch content and pellet physical quality on the biological response in Atlantic salmon. Salmon feeds with a large variation in physical quality were produced by the adjustment of dietary starch inclusion (92 g kg−1 or 64 g kg−1), preconditione...
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ftdoajarticles:oai:doaj.org/article:1021457de90348559cb91438b8822986 2023-05-15T15:30:32+02:00 Physical feed quality and starch content causes a biological response in Atlantic salmon (Salmo salar L) Tor Andreas Samuelsen Marie Hillestad Hans Jákup Jacobsen Tor Johannes Hjertnes Hanne Jorun Sixten 2021-11-01T00:00:00Z https://doi.org/10.1016/j.aqrep.2021.100791 https://doaj.org/article/1021457de90348559cb91438b8822986 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2352513421002076 https://doaj.org/toc/2352-5134 2352-5134 doi:10.1016/j.aqrep.2021.100791 https://doaj.org/article/1021457de90348559cb91438b8822986 Aquaculture Reports, Vol 21, Iss , Pp 100791- (2021) Atlantic salmon Drying Feed processing Growth Physical feed quality Starch level Aquaculture. Fisheries. Angling SH1-691 article 2021 ftdoajarticles https://doi.org/10.1016/j.aqrep.2021.100791 2022-12-31T15:39:31Z The aim of this study was to investigate the effect of starch content and pellet physical quality on the biological response in Atlantic salmon. Salmon feeds with a large variation in physical quality were produced by the adjustment of dietary starch inclusion (92 g kg−1 or 64 g kg−1), preconditioner oil (0.0 or 11.0 kg h−1), extruder moisture addition (13.5 or 27 kg h−1) and drying temperature (38 °C or 70 °C). The variables impacted physical quality for the 12 feed codes and with hardness S (standing) and Durability measured in the range of 39–212 N and 39–94 %, respectively. Gently dried feed (38 °C) was harder and more durable than conventionally dried (70 °C). This could be explained by the phase transition theory and drying in the mobile rubbery phase above the glass transition temperature (Tg) for the gently dried feed codes. All feed codes were evaluated in Atlantic salmon performance and digestibility trials. There was a significant difference between the codes for weight gain (%; P < 0.001), specific and thermal growth rate (P < 0.01) and protein efficiency ratio (P < 0.01). Growth was negatively associated with increased starch content, hardness and durability parameters and reduced solubility, fat content and gross energy. The most important physical properties affecting growth performance were Hardness S, Durability and Doris dust, parameters that may represent feed hydration- and dissolution rates. This study documents that the impact of pellet physical quality should be considered when evaluating the results from biological fish trials. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles Aquaculture Reports 21 100791 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Atlantic salmon Drying Feed processing Growth Physical feed quality Starch level Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
Atlantic salmon Drying Feed processing Growth Physical feed quality Starch level Aquaculture. Fisheries. Angling SH1-691 Tor Andreas Samuelsen Marie Hillestad Hans Jákup Jacobsen Tor Johannes Hjertnes Hanne Jorun Sixten Physical feed quality and starch content causes a biological response in Atlantic salmon (Salmo salar L) |
topic_facet |
Atlantic salmon Drying Feed processing Growth Physical feed quality Starch level Aquaculture. Fisheries. Angling SH1-691 |
description |
The aim of this study was to investigate the effect of starch content and pellet physical quality on the biological response in Atlantic salmon. Salmon feeds with a large variation in physical quality were produced by the adjustment of dietary starch inclusion (92 g kg−1 or 64 g kg−1), preconditioner oil (0.0 or 11.0 kg h−1), extruder moisture addition (13.5 or 27 kg h−1) and drying temperature (38 °C or 70 °C). The variables impacted physical quality for the 12 feed codes and with hardness S (standing) and Durability measured in the range of 39–212 N and 39–94 %, respectively. Gently dried feed (38 °C) was harder and more durable than conventionally dried (70 °C). This could be explained by the phase transition theory and drying in the mobile rubbery phase above the glass transition temperature (Tg) for the gently dried feed codes. All feed codes were evaluated in Atlantic salmon performance and digestibility trials. There was a significant difference between the codes for weight gain (%; P < 0.001), specific and thermal growth rate (P < 0.01) and protein efficiency ratio (P < 0.01). Growth was negatively associated with increased starch content, hardness and durability parameters and reduced solubility, fat content and gross energy. The most important physical properties affecting growth performance were Hardness S, Durability and Doris dust, parameters that may represent feed hydration- and dissolution rates. This study documents that the impact of pellet physical quality should be considered when evaluating the results from biological fish trials. |
format |
Article in Journal/Newspaper |
author |
Tor Andreas Samuelsen Marie Hillestad Hans Jákup Jacobsen Tor Johannes Hjertnes Hanne Jorun Sixten |
author_facet |
Tor Andreas Samuelsen Marie Hillestad Hans Jákup Jacobsen Tor Johannes Hjertnes Hanne Jorun Sixten |
author_sort |
Tor Andreas Samuelsen |
title |
Physical feed quality and starch content causes a biological response in Atlantic salmon (Salmo salar L) |
title_short |
Physical feed quality and starch content causes a biological response in Atlantic salmon (Salmo salar L) |
title_full |
Physical feed quality and starch content causes a biological response in Atlantic salmon (Salmo salar L) |
title_fullStr |
Physical feed quality and starch content causes a biological response in Atlantic salmon (Salmo salar L) |
title_full_unstemmed |
Physical feed quality and starch content causes a biological response in Atlantic salmon (Salmo salar L) |
title_sort |
physical feed quality and starch content causes a biological response in atlantic salmon (salmo salar l) |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doi.org/10.1016/j.aqrep.2021.100791 https://doaj.org/article/1021457de90348559cb91438b8822986 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Aquaculture Reports, Vol 21, Iss , Pp 100791- (2021) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2352513421002076 https://doaj.org/toc/2352-5134 2352-5134 doi:10.1016/j.aqrep.2021.100791 https://doaj.org/article/1021457de90348559cb91438b8822986 |
op_doi |
https://doi.org/10.1016/j.aqrep.2021.100791 |
container_title |
Aquaculture Reports |
container_volume |
21 |
container_start_page |
100791 |
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1766360982819438592 |