Growth and Fatty Acid Composition of Two Strains of Arctic Char Fed Diets Formulated with Low Fish Oil Inclusion in a Recirculating Aquaculture System
Abstract Arctic Char Salvelinus alpinus is a highly desirable species for aquaculture due to their fast growth, culture conditions, and reputation as a sustainably produced fish as a result of closed containment culture. A study was conducted to evaluate performance and highly unsaturated fatty acid...
Published in: | North American Journal of Aquaculture |
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Online Access: | http://dx.doi.org/10.1080/15222055.2016.1159627 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/15222055.2016.1159627 |
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crwiley:10.1080/15222055.2016.1159627 2024-06-02T08:01:39+00:00 Growth and Fatty Acid Composition of Two Strains of Arctic Char Fed Diets Formulated with Low Fish Oil Inclusion in a Recirculating Aquaculture System Burr, Gary S. Wolters, William R. Barrows, Frederic T. 2016 http://dx.doi.org/10.1080/15222055.2016.1159627 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/15222055.2016.1159627 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor North American Journal of Aquaculture volume 78, issue 3, page 270-278 ISSN 1522-2055 1548-8454 journal-article 2016 crwiley https://doi.org/10.1080/15222055.2016.1159627 2024-05-03T11:31:43Z Abstract Arctic Char Salvelinus alpinus is a highly desirable species for aquaculture due to their fast growth, culture conditions, and reputation as a sustainably produced fish as a result of closed containment culture. A study was conducted to evaluate performance and highly unsaturated fatty acid retention in two Arctic Char stocks—one commercial stock and one from the U.S. Department of Agriculture (USDA)—fed one of three diets containing different lipids (27% total): 11% fish oil and 11% soy–canola (diet 1, reference diet), 5% fish oil and 18% canola oil (diet 2), and 5% fish oil and 17% poultry oil (diet 3). Protein sources did not vary among the diets, and the lipid sources for the reference diet were similar to those included in commercial grower diets. After 250 d, fish from the USDA stock (1,736 ± 28 g [mean ± SE]) had significantly higher average weight, approximately 510 g greater, compared with the commercial stock (1,226 ± 19 g). Average weight gain was not significantly different among the diets but tended to be higher in diet 2 ( P = 0.09), and the USDA stock (~1,409 ± 27 g gained) had higher average weight gain compared with the commercial stock (~924 ± 18 g gained). Specific growth rate (SGR) was significantly different among the diets; fish fed diet 2 had the highest growth rate (0.62%/d compared with 0.59%/d and 0.58%/d for the other two diets) and the USDA stock had a significantly higher SGR compared with the commercial stock (0.65 ± 0.01%/d compared with 0.54 ± 0.01%/d). Fillet yield did not vary among diets or stocks. The average fillet yield was 67.4% of the gutted weight and 62.2% of the total weight. Selected fatty acid profiles did vary by stock and all fatty acid profiles showed dietary effects. The USDA stock had superior growth, and diet had the greatest influence on the fatty acid profile of the fillets. Article in Journal/Newspaper Arctic Salvelinus alpinus Wiley Online Library Arctic North American Journal of Aquaculture 78 3 270 278 |
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Wiley Online Library |
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language |
English |
description |
Abstract Arctic Char Salvelinus alpinus is a highly desirable species for aquaculture due to their fast growth, culture conditions, and reputation as a sustainably produced fish as a result of closed containment culture. A study was conducted to evaluate performance and highly unsaturated fatty acid retention in two Arctic Char stocks—one commercial stock and one from the U.S. Department of Agriculture (USDA)—fed one of three diets containing different lipids (27% total): 11% fish oil and 11% soy–canola (diet 1, reference diet), 5% fish oil and 18% canola oil (diet 2), and 5% fish oil and 17% poultry oil (diet 3). Protein sources did not vary among the diets, and the lipid sources for the reference diet were similar to those included in commercial grower diets. After 250 d, fish from the USDA stock (1,736 ± 28 g [mean ± SE]) had significantly higher average weight, approximately 510 g greater, compared with the commercial stock (1,226 ± 19 g). Average weight gain was not significantly different among the diets but tended to be higher in diet 2 ( P = 0.09), and the USDA stock (~1,409 ± 27 g gained) had higher average weight gain compared with the commercial stock (~924 ± 18 g gained). Specific growth rate (SGR) was significantly different among the diets; fish fed diet 2 had the highest growth rate (0.62%/d compared with 0.59%/d and 0.58%/d for the other two diets) and the USDA stock had a significantly higher SGR compared with the commercial stock (0.65 ± 0.01%/d compared with 0.54 ± 0.01%/d). Fillet yield did not vary among diets or stocks. The average fillet yield was 67.4% of the gutted weight and 62.2% of the total weight. Selected fatty acid profiles did vary by stock and all fatty acid profiles showed dietary effects. The USDA stock had superior growth, and diet had the greatest influence on the fatty acid profile of the fillets. |
format |
Article in Journal/Newspaper |
author |
Burr, Gary S. Wolters, William R. Barrows, Frederic T. |
spellingShingle |
Burr, Gary S. Wolters, William R. Barrows, Frederic T. Growth and Fatty Acid Composition of Two Strains of Arctic Char Fed Diets Formulated with Low Fish Oil Inclusion in a Recirculating Aquaculture System |
author_facet |
Burr, Gary S. Wolters, William R. Barrows, Frederic T. |
author_sort |
Burr, Gary S. |
title |
Growth and Fatty Acid Composition of Two Strains of Arctic Char Fed Diets Formulated with Low Fish Oil Inclusion in a Recirculating Aquaculture System |
title_short |
Growth and Fatty Acid Composition of Two Strains of Arctic Char Fed Diets Formulated with Low Fish Oil Inclusion in a Recirculating Aquaculture System |
title_full |
Growth and Fatty Acid Composition of Two Strains of Arctic Char Fed Diets Formulated with Low Fish Oil Inclusion in a Recirculating Aquaculture System |
title_fullStr |
Growth and Fatty Acid Composition of Two Strains of Arctic Char Fed Diets Formulated with Low Fish Oil Inclusion in a Recirculating Aquaculture System |
title_full_unstemmed |
Growth and Fatty Acid Composition of Two Strains of Arctic Char Fed Diets Formulated with Low Fish Oil Inclusion in a Recirculating Aquaculture System |
title_sort |
growth and fatty acid composition of two strains of arctic char fed diets formulated with low fish oil inclusion in a recirculating aquaculture system |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1080/15222055.2016.1159627 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/15222055.2016.1159627 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Salvelinus alpinus |
genre_facet |
Arctic Salvelinus alpinus |
op_source |
North American Journal of Aquaculture volume 78, issue 3, page 270-278 ISSN 1522-2055 1548-8454 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1080/15222055.2016.1159627 |
container_title |
North American Journal of Aquaculture |
container_volume |
78 |
container_issue |
3 |
container_start_page |
270 |
op_container_end_page |
278 |
_version_ |
1800746050202370048 |