Algal and Vegetable Oils as Sustainable Fish Oil Substitutes in Rainbow Trout Diets: An Approach to Reduce Contaminant Exposure
The aim of this study was to replace 75% of total fish oil (FO) and alter digestible protein/digestible energy (DP/DE) in rainbow trout feeds to minimize potentially hazardous environmental contaminant exposure. Two diets differing in DP/DE ratios (18 and 25) were combined with soybean (SO), canola...
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| Language: | English |
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Wiley
2018-01-01
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| Series: | Journal of Food Quality |
| Online Access: | http://dx.doi.org/10.1155/2018/7949782 |
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| author | Amélie Bélanger-Lamonde Pallab K. Sarker Pierre Ayotte Janice L. Bailey Dominique P. Bureau P. Yvan Chouinard Éric Dewailly Alain Leblanc Jean-Philippe Weber Grant W. Vandenberg |
| author_facet | Amélie Bélanger-Lamonde Pallab K. Sarker Pierre Ayotte Janice L. Bailey Dominique P. Bureau P. Yvan Chouinard Éric Dewailly Alain Leblanc Jean-Philippe Weber Grant W. Vandenberg |
| author_sort | Amélie Bélanger-Lamonde |
| collection | DOAJ |
| description | The aim of this study was to replace 75% of total fish oil (FO) and alter digestible protein/digestible energy (DP/DE) in rainbow trout feeds to minimize potentially hazardous environmental contaminant exposure. Two diets differing in DP/DE ratios (18 and 25) were combined with soybean (SO), canola (CO), and a blend of canola oil and Schizochytrium sp. (COS). Dietary lipids and DP/DE ratios did not affect apparent digestibility, growth, and somatic parameters. The n-3/n-6 levels decreased significantly in the growth trial, especially for the SO groups. A short washout trial restored n-3/n-6 levels for the CO and COS groups, irrespective of the DP/DE ratio, but not for the SO groups. At all sampling events, contaminant concentrations in fish flesh were lower than limits set by regulatory agencies in Canada, the US, and Europe. Contaminants were lower in the oil replacement diets compared to FO for toxaphenes, organochlorine pesticides, and PCBs but not flame retardants during the growth phase. At the end of the washout phase, no differences were detected. Thus, this study revealed that replacing 75% of total fish oil in rainbow trout feed by CO and COS, combined with a 25 DP/DE ratio, with a washout period seems to be the most efficient approach in terms of maximizing the total FO replacement and contribute to reducing POPs exposure. |
| format | Article |
| id | doaj-art-ed419f433aa943d48e2bbe9ed23cd127 |
| institution | DOAJ |
| issn | 0146-9428 1745-4557 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Food Quality |
| spelling | doaj-art-ed419f433aa943d48e2bbe9ed23cd1272025-08-20T03:21:12ZengWileyJournal of Food Quality0146-94281745-45572018-01-01201810.1155/2018/79497827949782Algal and Vegetable Oils as Sustainable Fish Oil Substitutes in Rainbow Trout Diets: An Approach to Reduce Contaminant ExposureAmélie Bélanger-Lamonde0Pallab K. Sarker1Pierre Ayotte2Janice L. Bailey3Dominique P. Bureau4P. Yvan Chouinard5Éric Dewailly6Alain Leblanc7Jean-Philippe Weber8Grant W. Vandenberg9Département des Sciences Animales, Pavillon Paul-Comtois, Université Laval, Québec, QC, G1K 7P4, CanadaDépartement des Sciences Animales, Pavillon Paul-Comtois, Université Laval, Québec, QC, G1K 7P4, CanadaCentre de Toxicologie, Institut National de Santé Publique du Québec (INSPQ), Québec, QC, G1V 5B3, CanadaDépartement des Sciences Animales, Pavillon Paul-Comtois, Université Laval, Québec, QC, G1K 7P4, CanadaFish Nutrition Research Laboratory, Department of Animal and Poultry Science, University of Guelph, Guelph, ON, N1G 2W1, CanadaDépartement des Sciences Animales, Pavillon Paul-Comtois, Université Laval, Québec, QC, G1K 7P4, CanadaAxe Santé des Populations et Pratiques Optimales en Santé, Centre de Recherche du CHU de Québec, QC, G1V 5B3, CanadaCentre de Toxicologie, Institut National de Santé Publique du Québec (INSPQ), Québec, QC, G1V 5B3, CanadaCentre de Toxicologie, Institut National de Santé Publique du Québec (INSPQ), Québec, QC, G1V 5B3, CanadaDépartement des Sciences Animales, Pavillon Paul-Comtois, Université Laval, Québec, QC, G1K 7P4, CanadaThe aim of this study was to replace 75% of total fish oil (FO) and alter digestible protein/digestible energy (DP/DE) in rainbow trout feeds to minimize potentially hazardous environmental contaminant exposure. Two diets differing in DP/DE ratios (18 and 25) were combined with soybean (SO), canola (CO), and a blend of canola oil and Schizochytrium sp. (COS). Dietary lipids and DP/DE ratios did not affect apparent digestibility, growth, and somatic parameters. The n-3/n-6 levels decreased significantly in the growth trial, especially for the SO groups. A short washout trial restored n-3/n-6 levels for the CO and COS groups, irrespective of the DP/DE ratio, but not for the SO groups. At all sampling events, contaminant concentrations in fish flesh were lower than limits set by regulatory agencies in Canada, the US, and Europe. Contaminants were lower in the oil replacement diets compared to FO for toxaphenes, organochlorine pesticides, and PCBs but not flame retardants during the growth phase. At the end of the washout phase, no differences were detected. Thus, this study revealed that replacing 75% of total fish oil in rainbow trout feed by CO and COS, combined with a 25 DP/DE ratio, with a washout period seems to be the most efficient approach in terms of maximizing the total FO replacement and contribute to reducing POPs exposure.http://dx.doi.org/10.1155/2018/7949782 |
| spellingShingle | Amélie Bélanger-Lamonde Pallab K. Sarker Pierre Ayotte Janice L. Bailey Dominique P. Bureau P. Yvan Chouinard Éric Dewailly Alain Leblanc Jean-Philippe Weber Grant W. Vandenberg Algal and Vegetable Oils as Sustainable Fish Oil Substitutes in Rainbow Trout Diets: An Approach to Reduce Contaminant Exposure Journal of Food Quality |
| title | Algal and Vegetable Oils as Sustainable Fish Oil Substitutes in Rainbow Trout Diets: An Approach to Reduce Contaminant Exposure |
| title_full | Algal and Vegetable Oils as Sustainable Fish Oil Substitutes in Rainbow Trout Diets: An Approach to Reduce Contaminant Exposure |
| title_fullStr | Algal and Vegetable Oils as Sustainable Fish Oil Substitutes in Rainbow Trout Diets: An Approach to Reduce Contaminant Exposure |
| title_full_unstemmed | Algal and Vegetable Oils as Sustainable Fish Oil Substitutes in Rainbow Trout Diets: An Approach to Reduce Contaminant Exposure |
| title_short | Algal and Vegetable Oils as Sustainable Fish Oil Substitutes in Rainbow Trout Diets: An Approach to Reduce Contaminant Exposure |
| title_sort | algal and vegetable oils as sustainable fish oil substitutes in rainbow trout diets an approach to reduce contaminant exposure |
| url | http://dx.doi.org/10.1155/2018/7949782 |
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