Accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur-bearing animals
Body fat composition of the mink (Mustela vison), polecat (Mustela putorius), and the raccoon dog (Nyctereutes procyonoides) was studied. The animals were fed a wet diet, supplemented with 5 % lard (LA) or fish oil (FO) for 5-6 months. At pelting, five animals per dietary group were sampled. Dietary...
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| Format: | Article |
| Language: | English |
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Scientific Agricultural Society of Finland
1992-09-01
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| Series: | Agricultural and Food Science |
| Online Access: | https://journal.fi/afs/article/view/72461 |
| _version_ | 1819154926510538752 |
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| author | Kirsti Rouvinen Jaakko Mäkelä Tuomo Kiiskinen Seppo Nummela |
| author_facet | Kirsti Rouvinen Jaakko Mäkelä Tuomo Kiiskinen Seppo Nummela |
| author_sort | Kirsti Rouvinen |
| collection | DOAJ |
| description | Body fat composition of the mink (Mustela vison), polecat (Mustela putorius), and the raccoon dog (Nyctereutes procyonoides) was studied. The animals were fed a wet diet, supplemented with 5 % lard (LA) or fish oil (FO) for 5-6 months. At pelting, five animals per dietary group were sampled. Dietary levels of cetoleic (C22:1ω11), eicosapentaenoic (EPA, C20:5ω3), and docosahexaenoic (DHA, C22:6ω3) acids were 0.4, 0.3, and 0.5% in the fat of the LA diet, and 7.6, 4.2 and 4.3% in the FO diet, respectively. In the FO diet, EPA and DHA accumulated especially in the liver and heart, while cetoleic acid showed the highest affinity to the heart muscle and subcutaneous fat. The highest levels of EPA were found in raccoon dogs and polecats fed the FO diet. The mean EPA levels ranged from 6.7-9.3% in the liver fat and 7.2-8.0% in the heart muscle fat. In the mink, the corresponding values were 2.7% and 3.9%, respectively. DHA levels were the highest in the liver fat of the polecats, being 18.5% in the FO diet. In addition, the liver in raccoon dogs fed the FO diet (13.8%) differed significantly from themink (9.4%). The differences in the accumulation of these long-chained marine fatty acids were apparently caused by species differences in the efficiency of their peroxisomal β-oxidation. |
| first_indexed | 2024-12-22T15:28:50Z |
| format | Article |
| id | doaj.art-7a615c94fdb04feeb09f5f56d34175dd |
| institution | Directory Open Access Journal |
| issn | 1459-6067 1795-1895 |
| language | English |
| last_indexed | 2024-12-22T15:28:50Z |
| publishDate | 1992-09-01 |
| publisher | Scientific Agricultural Society of Finland |
| record_format | Article |
| series | Agricultural and Food Science |
| spelling | doaj.art-7a615c94fdb04feeb09f5f56d34175dd2022-12-21T18:21:25ZengScientific Agricultural Society of FinlandAgricultural and Food Science1459-60671795-18951992-09-0115Accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur-bearing animalsKirsti Rouvinen0Jaakko Mäkelä1Tuomo Kiiskinen2Seppo Nummela3Agricultural Research Centre of Finland, Fur Farming Research Station, SF-69100 Kannus, FinlandFinnish Fur Breeders’ Association,, P.0.Box 5, SF-01601 Vantaa, FinlandAgricultural Research Centre of Finland, Institute of Animal Production, SF-31600 Jokioinen, FinlandAgricultural Research Centre of Finland, Central Laboratory, SF-31600 Jokioinen, FinlandBody fat composition of the mink (Mustela vison), polecat (Mustela putorius), and the raccoon dog (Nyctereutes procyonoides) was studied. The animals were fed a wet diet, supplemented with 5 % lard (LA) or fish oil (FO) for 5-6 months. At pelting, five animals per dietary group were sampled. Dietary levels of cetoleic (C22:1ω11), eicosapentaenoic (EPA, C20:5ω3), and docosahexaenoic (DHA, C22:6ω3) acids were 0.4, 0.3, and 0.5% in the fat of the LA diet, and 7.6, 4.2 and 4.3% in the FO diet, respectively. In the FO diet, EPA and DHA accumulated especially in the liver and heart, while cetoleic acid showed the highest affinity to the heart muscle and subcutaneous fat. The highest levels of EPA were found in raccoon dogs and polecats fed the FO diet. The mean EPA levels ranged from 6.7-9.3% in the liver fat and 7.2-8.0% in the heart muscle fat. In the mink, the corresponding values were 2.7% and 3.9%, respectively. DHA levels were the highest in the liver fat of the polecats, being 18.5% in the FO diet. In addition, the liver in raccoon dogs fed the FO diet (13.8%) differed significantly from themink (9.4%). The differences in the accumulation of these long-chained marine fatty acids were apparently caused by species differences in the efficiency of their peroxisomal β-oxidation.https://journal.fi/afs/article/view/72461 |
| spellingShingle | Kirsti Rouvinen Jaakko Mäkelä Tuomo Kiiskinen Seppo Nummela Accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur-bearing animals Agricultural and Food Science |
| title | Accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur-bearing animals |
| title_full | Accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur-bearing animals |
| title_fullStr | Accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur-bearing animals |
| title_full_unstemmed | Accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur-bearing animals |
| title_short | Accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur-bearing animals |
| title_sort | accumulation of dietary fish fatty acids in the body fat reserves of some carnivorous fur bearing animals |
| url | https://journal.fi/afs/article/view/72461 |
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