Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality
Three feeds with different physical pellet quality but the same formulation were fed to Atlantic salmon for 97 days. Pellet quality was measured as bulk density, durability, fat leakage, hardness, water stability and porosity. The largest difference among the feeds was measured in hardness (201, 236...
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ftdoajarticles:oai:doaj.org/article:ba3460b5d91b4102b065b79f4178d2e3 2023-05-15T15:30:44+02:00 Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality Turid Synnøve Aas Hanne Jorun Sixten Marie Hillestad Trine Ytrestøyl Harald Sveier Torbjørn Åsgård 2020-08-01T00:00:00Z https://doaj.org/article/ba3460b5d91b4102b065b79f4178d2e3 EN eng BdFISH http://journal.bdfish.org/index.php/fisheries/article/view/133 https://doaj.org/toc/2311-729X https://doaj.org/toc/2311-3111 2311-729X 2311-3111 https://doaj.org/article/ba3460b5d91b4102b065b79f4178d2e3 Journal of Fisheries, Vol 8, Iss 2 (2020) Apparent digestibility Atlantic salmon drinking rate feed intake mineral utilisation physical feed quality Aquaculture. Fisheries. Angling SH1-691 article 2020 ftdoajarticles 2022-12-31T08:13:12Z Three feeds with different physical pellet quality but the same formulation were fed to Atlantic salmon for 97 days. Pellet quality was measured as bulk density, durability, fat leakage, hardness, water stability and porosity. The largest difference among the feeds was measured in hardness (201, 236 and 86 Newton for Diet 1, Diet 2 and Diet 3 respectively). The relative feed intake was highest in salmon fed Diet 2 and Diet 3 with no effects of pellet hardness. Growth and feed efficiency ratio were similar among all fish. The apparent digestibility of energy, dry matter, nitrogen and lipid was similar for all feeds, whereas the apparent digestibility of phosphorus and zinc was the lowest in Diet 3. Retention of energy, lipid and nitrogen was also similar for all feeds. Salmon fed Diet 1 and Diet 3 retained more phosphorus than those fed Diet 2. An increased retention of the digested zinc was found in salmon fed Diet 3. This study concludes that physical pellet quality affects feed intake and improve utilisation of feed in salmon if optimised properly. Moreover, pellet hardness can be optimised in commercial scale without compromising feed intake as it has no influence on feed intake. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Apparent digestibility Atlantic salmon drinking rate feed intake mineral utilisation physical feed quality Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
Apparent digestibility Atlantic salmon drinking rate feed intake mineral utilisation physical feed quality Aquaculture. Fisheries. Angling SH1-691 Turid Synnøve Aas Hanne Jorun Sixten Marie Hillestad Trine Ytrestøyl Harald Sveier Torbjørn Åsgård Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality |
topic_facet |
Apparent digestibility Atlantic salmon drinking rate feed intake mineral utilisation physical feed quality Aquaculture. Fisheries. Angling SH1-691 |
description |
Three feeds with different physical pellet quality but the same formulation were fed to Atlantic salmon for 97 days. Pellet quality was measured as bulk density, durability, fat leakage, hardness, water stability and porosity. The largest difference among the feeds was measured in hardness (201, 236 and 86 Newton for Diet 1, Diet 2 and Diet 3 respectively). The relative feed intake was highest in salmon fed Diet 2 and Diet 3 with no effects of pellet hardness. Growth and feed efficiency ratio were similar among all fish. The apparent digestibility of energy, dry matter, nitrogen and lipid was similar for all feeds, whereas the apparent digestibility of phosphorus and zinc was the lowest in Diet 3. Retention of energy, lipid and nitrogen was also similar for all feeds. Salmon fed Diet 1 and Diet 3 retained more phosphorus than those fed Diet 2. An increased retention of the digested zinc was found in salmon fed Diet 3. This study concludes that physical pellet quality affects feed intake and improve utilisation of feed in salmon if optimised properly. Moreover, pellet hardness can be optimised in commercial scale without compromising feed intake as it has no influence on feed intake. |
format |
Article in Journal/Newspaper |
author |
Turid Synnøve Aas Hanne Jorun Sixten Marie Hillestad Trine Ytrestøyl Harald Sveier Torbjørn Åsgård |
author_facet |
Turid Synnøve Aas Hanne Jorun Sixten Marie Hillestad Trine Ytrestøyl Harald Sveier Torbjørn Åsgård |
author_sort |
Turid Synnøve Aas |
title |
Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality |
title_short |
Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality |
title_full |
Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality |
title_fullStr |
Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality |
title_full_unstemmed |
Feed intake, nutrient digestibility and nutrient retention in Atlantic salmon (Salmo salar L.) fed diets with different physical pellet quality |
title_sort |
feed intake, nutrient digestibility and nutrient retention in atlantic salmon (salmo salar l.) fed diets with different physical pellet quality |
publisher |
BdFISH |
publishDate |
2020 |
url |
https://doaj.org/article/ba3460b5d91b4102b065b79f4178d2e3 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fisheries, Vol 8, Iss 2 (2020) |
op_relation |
http://journal.bdfish.org/index.php/fisheries/article/view/133 https://doaj.org/toc/2311-729X https://doaj.org/toc/2311-3111 2311-729X 2311-3111 https://doaj.org/article/ba3460b5d91b4102b065b79f4178d2e3 |
_version_ |
1766361195757961216 |