Fatty acid profiles of yolk lipids of five species of wild ducks (Anatidae) differing in dietary preference
Abstract The fatty acid compositions of yolk lipids of eggs collected in the wild from five species of ducks (Anatidae) showing a range of dietary preferences, the king eider Somateria spectabilis , the lesser scaup Aythya affinis , the mallard Anas platyrhynchos , the green‐winged teal Anas crecca...
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crwiley:10.1017/s0952836902001115 2024-06-02T08:09:52+00:00 Fatty acid profiles of yolk lipids of five species of wild ducks (Anatidae) differing in dietary preference Speake, Brian K. Surai, Peter F. Bortolotti, Gary R. 2002 http://dx.doi.org/10.1017/s0952836902001115 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1017%2FS0952836902001115 https://onlinelibrary.wiley.com/doi/pdf/10.1017/S0952836902001115 https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1017/S0952836902001115 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Zoology volume 257, issue 4, page 533-538 ISSN 0952-8369 1469-7998 journal-article 2002 crwiley https://doi.org/10.1017/s0952836902001115 2024-05-03T10:59:09Z Abstract The fatty acid compositions of yolk lipids of eggs collected in the wild from five species of ducks (Anatidae) showing a range of dietary preferences, the king eider Somateria spectabilis , the lesser scaup Aythya affinis , the mallard Anas platyrhynchos , the green‐winged teal Anas crecca and the gadwall Anas streperi , are reported. For all five species, the fatty acid profiles conformed to a similar pattern, characterized by relatively balanced proportions (w/w) of arachidonic (6.7–9.1%) and docosahexaenoic (5.9–7.0%) acids in yolk phospholipid. This contrasts markedly with the yolk phospholipid of current commercially‐reared ducks where the proportion of arachidonic acid can be 10 times greater than that of docosahexaenoic acid. It was most notable that the similarities in yolk fatty acid profiles among the different species of wild ducks were achieved despite the considerable interspecies variation in dietary modes. It seems that, in this instance, genetic factors deriving from a common phylogeny may be more important than dietary differences in determining the fatty acid composition of yolk. Article in Journal/Newspaper King Eider Somateria spectabilis Wiley Online Library Journal of Zoology 257 4 533 538 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The fatty acid compositions of yolk lipids of eggs collected in the wild from five species of ducks (Anatidae) showing a range of dietary preferences, the king eider Somateria spectabilis , the lesser scaup Aythya affinis , the mallard Anas platyrhynchos , the green‐winged teal Anas crecca and the gadwall Anas streperi , are reported. For all five species, the fatty acid profiles conformed to a similar pattern, characterized by relatively balanced proportions (w/w) of arachidonic (6.7–9.1%) and docosahexaenoic (5.9–7.0%) acids in yolk phospholipid. This contrasts markedly with the yolk phospholipid of current commercially‐reared ducks where the proportion of arachidonic acid can be 10 times greater than that of docosahexaenoic acid. It was most notable that the similarities in yolk fatty acid profiles among the different species of wild ducks were achieved despite the considerable interspecies variation in dietary modes. It seems that, in this instance, genetic factors deriving from a common phylogeny may be more important than dietary differences in determining the fatty acid composition of yolk. |
format |
Article in Journal/Newspaper |
author |
Speake, Brian K. Surai, Peter F. Bortolotti, Gary R. |
spellingShingle |
Speake, Brian K. Surai, Peter F. Bortolotti, Gary R. Fatty acid profiles of yolk lipids of five species of wild ducks (Anatidae) differing in dietary preference |
author_facet |
Speake, Brian K. Surai, Peter F. Bortolotti, Gary R. |
author_sort |
Speake, Brian K. |
title |
Fatty acid profiles of yolk lipids of five species of wild ducks (Anatidae) differing in dietary preference |
title_short |
Fatty acid profiles of yolk lipids of five species of wild ducks (Anatidae) differing in dietary preference |
title_full |
Fatty acid profiles of yolk lipids of five species of wild ducks (Anatidae) differing in dietary preference |
title_fullStr |
Fatty acid profiles of yolk lipids of five species of wild ducks (Anatidae) differing in dietary preference |
title_full_unstemmed |
Fatty acid profiles of yolk lipids of five species of wild ducks (Anatidae) differing in dietary preference |
title_sort |
fatty acid profiles of yolk lipids of five species of wild ducks (anatidae) differing in dietary preference |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1017/s0952836902001115 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1017%2FS0952836902001115 https://onlinelibrary.wiley.com/doi/pdf/10.1017/S0952836902001115 https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1017/S0952836902001115 |
genre |
King Eider Somateria spectabilis |
genre_facet |
King Eider Somateria spectabilis |
op_source |
Journal of Zoology volume 257, issue 4, page 533-538 ISSN 0952-8369 1469-7998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1017/s0952836902001115 |
container_title |
Journal of Zoology |
container_volume |
257 |
container_issue |
4 |
container_start_page |
533 |
op_container_end_page |
538 |
_version_ |
1800755649013874688 |