Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets
The purpose of this study was to determine the influence of krill meal (KM) inclusion at various levels (0%, 2.5%, 5%) in plant-based and animal-based feeds, that were fishmeal (FM) and fish oil (FO) free, on Atlantic salmon growth. A FM/FO feed containing 0% KM was the control. Using a 2 × 3 factor...
Published in: | Fishes |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
MDPI AG
2023
|
Subjects: | |
Online Access: | https://doi.org/10.3390/fishes8120590 https://doaj.org/article/1b363fcfec234378863cbd2f730bbd68 |
id |
ftdoajarticles:oai:doaj.org/article:1b363fcfec234378863cbd2f730bbd68 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:1b363fcfec234378863cbd2f730bbd68 2024-01-21T10:04:37+01:00 Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets Frederick T. Barrows Kelly B. Campbell T. Gibson Gaylord Rodrigo C. M. Sanchez Sergio A. Castillo Ewen McLean 2023-11-01T00:00:00Z https://doi.org/10.3390/fishes8120590 https://doaj.org/article/1b363fcfec234378863cbd2f730bbd68 EN eng MDPI AG https://www.mdpi.com/2410-3888/8/12/590 https://doaj.org/toc/2410-3888 doi:10.3390/fishes8120590 2410-3888 https://doaj.org/article/1b363fcfec234378863cbd2f730bbd68 Fishes, Vol 8, Iss 12, p 590 (2023) Salmo salar poultry by-product algal oil soybean concentrate corn concentrate krill replacement Biology (General) QH301-705.5 Genetics QH426-470 article 2023 ftdoajarticles https://doi.org/10.3390/fishes8120590 2023-12-24T01:37:22Z The purpose of this study was to determine the influence of krill meal (KM) inclusion at various levels (0%, 2.5%, 5%) in plant-based and animal-based feeds, that were fishmeal (FM) and fish oil (FO) free, on Atlantic salmon growth. A FM/FO feed containing 0% KM was the control. Using a 2 × 3 factorial approach, diets were randomly assigned to one of 28 0.5 m 3 flow-through tanks (n = 4 tanks per diet) initially stocked with 60 fish (148.4 ± 12.9 g; 23.6 ± 0.8 cm; condition factor ( K ) = 1.16 ± 0.08) each. Salmon were fed for 90 days using automatic feeders ad libitum. On day 45, stocking densities were reduced to 45 fish per tank by the random removal of 15 individuals to remove any potential of density affecting growth through the trial end. Water temperature, oxygen saturation, pH, and salinity throughout the trial were 11.8 °C, 103.5%, 7.38, and 32.0 g L −1 , respectively. Fish fed plant-based feed without KM were lighter ( p < 0.05) than all other groups at day 45 and 90, but those fed a plant-based feed with KM had comparable growth and feed intake compared to that of fish fed the control diet. Irrespective of the presence of KM, animal-based feeds achieved comparable weight growth ( p > 0.05) to the control and 5% KM plant-based groups, with KM increasing feed intake ( p < 0.05). Between day 45 and 90, feed conversion ratios increased in all groups except the control and 0% KM plant-based group, while specific growth rates (SGRs) decreased for all except the 0% KM plant-based diet. Between-group differences ( p < 0.05) were also noted for the thermal growth coefficient. No differences were recorded in visceral or intestinal weight, and whole-body lipid levels were identical, proportional for all groups. Although differences ( p < 0.05) were apparent in the concentrations of individual fillet fatty acids between groups, a 75 g serving size of any treatment would be sufficient to exceed daily intake recommendations for EPA + DHA. This trial determined that benefit, in terms of feed intake ... Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles Fishes 8 12 590 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Salmo salar poultry by-product algal oil soybean concentrate corn concentrate krill replacement Biology (General) QH301-705.5 Genetics QH426-470 |
spellingShingle |
Salmo salar poultry by-product algal oil soybean concentrate corn concentrate krill replacement Biology (General) QH301-705.5 Genetics QH426-470 Frederick T. Barrows Kelly B. Campbell T. Gibson Gaylord Rodrigo C. M. Sanchez Sergio A. Castillo Ewen McLean Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets |
topic_facet |
Salmo salar poultry by-product algal oil soybean concentrate corn concentrate krill replacement Biology (General) QH301-705.5 Genetics QH426-470 |
description |
The purpose of this study was to determine the influence of krill meal (KM) inclusion at various levels (0%, 2.5%, 5%) in plant-based and animal-based feeds, that were fishmeal (FM) and fish oil (FO) free, on Atlantic salmon growth. A FM/FO feed containing 0% KM was the control. Using a 2 × 3 factorial approach, diets were randomly assigned to one of 28 0.5 m 3 flow-through tanks (n = 4 tanks per diet) initially stocked with 60 fish (148.4 ± 12.9 g; 23.6 ± 0.8 cm; condition factor ( K ) = 1.16 ± 0.08) each. Salmon were fed for 90 days using automatic feeders ad libitum. On day 45, stocking densities were reduced to 45 fish per tank by the random removal of 15 individuals to remove any potential of density affecting growth through the trial end. Water temperature, oxygen saturation, pH, and salinity throughout the trial were 11.8 °C, 103.5%, 7.38, and 32.0 g L −1 , respectively. Fish fed plant-based feed without KM were lighter ( p < 0.05) than all other groups at day 45 and 90, but those fed a plant-based feed with KM had comparable growth and feed intake compared to that of fish fed the control diet. Irrespective of the presence of KM, animal-based feeds achieved comparable weight growth ( p > 0.05) to the control and 5% KM plant-based groups, with KM increasing feed intake ( p < 0.05). Between day 45 and 90, feed conversion ratios increased in all groups except the control and 0% KM plant-based group, while specific growth rates (SGRs) decreased for all except the 0% KM plant-based diet. Between-group differences ( p < 0.05) were also noted for the thermal growth coefficient. No differences were recorded in visceral or intestinal weight, and whole-body lipid levels were identical, proportional for all groups. Although differences ( p < 0.05) were apparent in the concentrations of individual fillet fatty acids between groups, a 75 g serving size of any treatment would be sufficient to exceed daily intake recommendations for EPA + DHA. This trial determined that benefit, in terms of feed intake ... |
format |
Article in Journal/Newspaper |
author |
Frederick T. Barrows Kelly B. Campbell T. Gibson Gaylord Rodrigo C. M. Sanchez Sergio A. Castillo Ewen McLean |
author_facet |
Frederick T. Barrows Kelly B. Campbell T. Gibson Gaylord Rodrigo C. M. Sanchez Sergio A. Castillo Ewen McLean |
author_sort |
Frederick T. Barrows |
title |
Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets |
title_short |
Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets |
title_full |
Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets |
title_fullStr |
Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets |
title_full_unstemmed |
Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets |
title_sort |
influence of krill meal on the performance of post-smolt atlantic salmon that are fed plant-based and animal-based fishmeal and fish oil-free diets |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/fishes8120590 https://doaj.org/article/1b363fcfec234378863cbd2f730bbd68 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Fishes, Vol 8, Iss 12, p 590 (2023) |
op_relation |
https://www.mdpi.com/2410-3888/8/12/590 https://doaj.org/toc/2410-3888 doi:10.3390/fishes8120590 2410-3888 https://doaj.org/article/1b363fcfec234378863cbd2f730bbd68 |
op_doi |
https://doi.org/10.3390/fishes8120590 |
container_title |
Fishes |
container_volume |
8 |
container_issue |
12 |
container_start_page |
590 |
_version_ |
1788694991490514944 |