Document Detail

Serum alpha- and gamma-tocopherols, retinol, retinyl palmitate, and carotenoid concentrations in captive and free-ranging bottlenose dolphins (Tursiops truncatus).
MedLine Citation:
PMID:  10665367     Owner:  NLM     Status:  MEDLINE    
Concentrations of retinol, retinyl palmitate, beta-carotene, alpha-carotene, cryptoxanthin, lutein, lycopene, alpha-tocopherol, and gamma-tocopherol were measured in blood samples collected from 15 captive and 55 free-ranging bottlenose dolphins (Tursiops truncatus). From June 1991 to June 1994, blood samples were collected from captive animals residing at two locations; at Seven Seas (Brookfield Zoo, Brookfield, IL) and Hawk's Cay (Marathon Key, FL). Blood samples were collected from free-ranging animals from June 1991 to June 1996. Retinol levels were not significantly different between captive dolphin groups. However, Seven Seas animals had higher (P < 0.01) serum retinol concentrations compared to free-ranging animals (0.061 vs 0.041 microgram/ml). Retinyl palmitate was not detected in the serum of captive or free-ranging dolphins. Alpha-tocopherol levels were significantly (P < 0.05) higher for Seven Seas dolphins (16.4 micrograms/ml) than for Hawk's Cay (13.0 micrograms/ml) and free-ranging dolphins (12.5 micrograms/ml). Gamma-tocopherol concentrations were similar among captive and free-ranging dolphins. Free-ranging dolphins showed levels of circulating carotenoids (lutein and beta-carotene) while the captive animals did not. Additional carotenoids (lycopene, alpha-carotene and cryptoxanthin) were analyzed but not detected in any samples. Serum vitamin differences between captive and free-ranging dolphins may reflect the natural diet or indicate some potential biological or nutritional status significance.
S D Crissey; R Wells
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology     Volume:  124     ISSN:  1096-4959     ISO Abbreviation:  Comp. Biochem. Physiol. B, Biochem. Mol. Biol.     Publication Date:  1999 Dec 
Date Detail:
Created Date:  2000-03-23     Completed Date:  2000-03-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9516061     Medline TA:  Comp Biochem Physiol B Biochem Mol Biol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  391-6     Citation Subset:  IM    
Daniel F. & Ada L. Rice Conservation Biology and Research Center, Chicago Zoological Society, Brookfield, IL 60513, USA.
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MeSH Terms
Animals, Wild
Animals, Zoo*
Carotenoids / blood*
Dolphins / blood*
Lutein / blood
Vitamin A / analogs & derivatives*,  blood*
Vitamin E / blood*
beta Carotene / blood
Reg. No./Substance:
11103-57-4/Vitamin A; 127-40-2/Lutein; 1406-18-4/Vitamin E; 36-88-4/Carotenoids; 7235-40-7/beta Carotene; 79-81-2/retinol palmitate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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