Fatty acid composition of fat depots in wintering Canada geese
The Wilson Bulletin
By: J. E. Austin
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Abstract
I determined the fatty acid composition of subcutaneous, abdominal, visceral, and leg saddle depots in adult female Canada Geese (Branta canadensis) wintering in north-central Missouri during October 1984-March 1985. Mean levels of C14:0, C16:0, C16:1, C18:0, C18:1, C18:2, and C18:3 generally were highest in the subcutaneous and abdominal depots. The ratio of saturated to unsaturated fats was highest in the leg saddle depot and lowest in the abdominal depot. I also assessed the differences among sexes, seasons, and years in fatty acid composition of abdominal fat depots in adult geese collected during October-March, 1985-1987. Adult females had consistently higher levels of C14:0 in abdominal depots than males. Fatty acid composition of the abdominal depot differed among years but not by season. In the abdominal depot, C14:0, C16:0, C16:1, and C18:1 were higher in 1986-1987 compared with the previous two years, whereas C18:3 was highest in 1984-1985. Differences among years reflected changes in winter diet. Fatty acids of wintering geese were similar to those previously found in breeding Canada Geese.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Fatty acid composition of fat depots in wintering Canada geese |
| Series title | The Wilson Bulletin |
| Volume | 105 |
| Issue | 2 |
| Year Published | 1993 |
| Language | English |
| Contributing office(s) | Northern Prairie Wildlife Research Center |
| Description | 9 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Wilson Bulletin |
| First page | 339 |
| Last page | 347 |
| Google Analytic Metrics | Metrics page |