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: | http://dx.doi.org/10.3389/fmars.2023.1127519 https://www.frontiersin.org/articles/10.3389/fmars.2023.1127519/full |
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crfrontiers:10.3389/fmars.2023.1127519 2024-03-31T07:51:40+00:00 Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) Gomes, Ana S. Zimmermann, Fabian Hevrøy, Ernst M. Søyland, Marcus A. L. Hansen, Tom J. Nilsen, Tom Ole Rønnestad, Ivar FP7 Ideas: European Research Council Norges Forskningsråd 2023 http://dx.doi.org/10.3389/fmars.2023.1127519 https://www.frontiersin.org/articles/10.3389/fmars.2023.1127519/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography journal-article 2023 crfrontiers https://doi.org/10.3389/fmars.2023.1127519 2024-03-05T00:17:14Z 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) (R 2 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. Article in Journal/Newspaper Atlantic salmon Salmo salar Frontiers (Publisher) Frontiers in Marine Science 10 |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography Gomes, Ana S. Zimmermann, Fabian Hevrøy, Ernst M. Søyland, Marcus A. L. Hansen, Tom J. Nilsen, Tom Ole Rønnestad, Ivar Statistical modelling of voluntary feed intake in individual Atlantic salmon (Salmo salar L.) |
topic_facet |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
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) (R 2 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. |
author2 |
FP7 Ideas: European Research Council Norges Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Gomes, Ana S. Zimmermann, Fabian Hevrøy, Ernst M. Søyland, Marcus A. L. Hansen, Tom J. Nilsen, Tom Ole Rønnestad, Ivar |
author_facet |
Gomes, Ana S. Zimmermann, Fabian Hevrøy, Ernst M. Søyland, Marcus A. L. Hansen, Tom J. Nilsen, Tom Ole Rønnestad, Ivar |
author_sort |
Gomes, Ana S. |
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 Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmars.2023.1127519 https://www.frontiersin.org/articles/10.3389/fmars.2023.1127519/full |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.1127519 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1795030370348957696 |