Vitamin E in cranes: Reference ranges and nutrient interactions
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Abstract
Fat soluble vitamins E and A (quantified as α-tocopherol and all-trans retinol, respectively) were measured in plasma samples from 274 captive cranes from four institutions and five free-ranging birds. Ages ranged from 4 mo to 80 yr, and all 15 crane species were represented. Captive cranes had a mean ± standard error (SE) of 6.57 ± 0.82 μg/ml α-tocopherol; migrating greater sandhill cranes (Grus canadenis tabida) had a plasma concentration of 3.71 ± 0.22 μg/ml. Sex and age differences were not significant, but crane species that evolved in temperate habitats had higher circulating levels of α-tocopherol than tropical or subtropical species. Mean ± SE retinol values were 0.69 ± 0.05 μg/ml in captive cranes, and 0.66 ± 0.08 μg/ml in free-ranging cranes; values did not differ significantly by sex, age, or species. Dietary vitamin E concentrations were significantly correlated with plasma α-tocopherol levels in a logarithmic relationship. Dietary selenium at 0.5 mg/kg was associated with decreased circulating a-tocopherol concentrations.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Vitamin E in cranes: Reference ranges and nutrient interactions |
| Series title | Journal of Wildlife Diseases |
| DOI | 10.7589/0090-3558-29.1.98 |
| Volume | 29 |
| Issue | 1 |
| Year Published | 1993 |
| Language | English |
| Publisher | Wildlife Disease Association |
| Contributing office(s) | National Wildlife Health Center |
| Description | 5 p. |
| First page | 98 |
| Last page | 102 |
| Country | United States |
| State | Georgia, Maryland, New York, Wisconsin |
| Other Geospatial | Bronx Zoo, International Crane Foundation, Patuxent Wildlife Center, St Catherine's Island, |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |