Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.)
Precision feeding aims to provide the correct amount of feed to farmed animals for optimal growth and performance and to avoid feed waste. However, knowledge underlying the meal-to-meal variability in voluntary feed intake of farmed species is still limited. This study examined the relationship betw...
Published in: | Frontiers in Marine Science |
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Online Access: | https://hdl.handle.net/11250/3062119 https://doi.org/10.3389/fmars.2023.1127519 |
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ftunivbergen:oai:bora.uib.no:11250/3062119 2023-05-15T15:31:24+02:00 Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) Da Silva Gomes, Ana Cristina Zimmermann, Fabian Hevrøy, Ernst Morten Søyland, Marcus Hansen, Tom Nilsen, Tom Ole Rønnestad, Ivar 2023 application/pdf https://hdl.handle.net/11250/3062119 https://doi.org/10.3389/fmars.2023.1127519 eng eng Frontiers urn:issn:2296-7745 https://hdl.handle.net/11250/3062119 https://doi.org/10.3389/fmars.2023.1127519 cristin:2131835 Frontiers in Marine Science. 2023, 10, 1127519. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2023 The Author(s) 1127519 Frontiers in Marine Science 10 Journal article 2023 ftunivbergen https://doi.org/10.3389/fmars.2023.1127519 2023-04-05T23:05:49Z Precision feeding aims to provide the correct amount of feed to farmed animals for optimal growth and performance and to avoid feed waste. However, knowledge underlying the meal-to-meal variability in voluntary feed intake of farmed species is still limited. This study examined the relationship between meals, feed deprivation time and the feed (pellets) consumed by Atlantic salmon post smolts. The data was collected from individual fish handfed to satiety without social interaction in three independent short-term (6-12 days) experiments. The fixed variables of our model (feed deprivation time (i.e., time between meals), number of pellets provided, day, previous meal size, and fish growth) explained most of the feed intake (number of pellets ingested) (R2 0.68). Results show that fish ingested more pellets over the course of the trials as they grew, resulting in a positive correlation between feed intake and fish growth (final minus initial fish weight). The time between meals and prior meal size (the number of pellets ingested in the previous meal) significantly affected feed intake in the following meal. Our results suggest that it is possible to optimise meal size by considering the size of the previous meal and the time since it was given. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar University of Bergen: Bergen Open Research Archive (BORA-UiB) Frontiers in Marine Science 10 |
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University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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language |
English |
description |
Precision feeding aims to provide the correct amount of feed to farmed animals for optimal growth and performance and to avoid feed waste. However, knowledge underlying the meal-to-meal variability in voluntary feed intake of farmed species is still limited. This study examined the relationship between meals, feed deprivation time and the feed (pellets) consumed by Atlantic salmon post smolts. The data was collected from individual fish handfed to satiety without social interaction in three independent short-term (6-12 days) experiments. The fixed variables of our model (feed deprivation time (i.e., time between meals), number of pellets provided, day, previous meal size, and fish growth) explained most of the feed intake (number of pellets ingested) (R2 0.68). Results show that fish ingested more pellets over the course of the trials as they grew, resulting in a positive correlation between feed intake and fish growth (final minus initial fish weight). The time between meals and prior meal size (the number of pellets ingested in the previous meal) significantly affected feed intake in the following meal. Our results suggest that it is possible to optimise meal size by considering the size of the previous meal and the time since it was given. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Da Silva Gomes, Ana Cristina Zimmermann, Fabian Hevrøy, Ernst Morten Søyland, Marcus Hansen, Tom Nilsen, Tom Ole Rønnestad, Ivar |
spellingShingle |
Da Silva Gomes, Ana Cristina Zimmermann, Fabian Hevrøy, Ernst Morten Søyland, Marcus Hansen, Tom Nilsen, Tom Ole Rønnestad, Ivar Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) |
author_facet |
Da Silva Gomes, Ana Cristina Zimmermann, Fabian Hevrøy, Ernst Morten Søyland, Marcus Hansen, Tom Nilsen, Tom Ole Rønnestad, Ivar |
author_sort |
Da Silva Gomes, Ana Cristina |
title |
Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) |
title_short |
Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) |
title_full |
Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) |
title_fullStr |
Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) |
title_full_unstemmed |
Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) |
title_sort |
statistical modelling of voluntary feed intake in individual atlantic salmon (salmo salar l.) |
publisher |
Frontiers |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3062119 https://doi.org/10.3389/fmars.2023.1127519 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
1127519 Frontiers in Marine Science 10 |
op_relation |
urn:issn:2296-7745 https://hdl.handle.net/11250/3062119 https://doi.org/10.3389/fmars.2023.1127519 cristin:2131835 Frontiers in Marine Science. 2023, 10, 1127519. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2023 The Author(s) |
op_doi |
https://doi.org/10.3389/fmars.2023.1127519 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1766361897556246528 |