Research note: carotenoids in combs of capercaillie (Tetrao urogallus) fed defined diets

The carotenoids in the supraocular combs of male capercaillie Tetrao urogallus offered two different, specified diets were examined quantitatively and qualitatively. Birds offered the diet richest in carotenoids (zeaxanthin and lutein) experienced the highest carotenoid concentrations (36 micrograms...

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Bibliographic Details
Published in:Poultry science 1993-04, Vol.72 (4), p.747-751
Main Authors: Egeland, E.S. (University of Trondheim, Trondheim, Norway), Parker, H, Liaaen-Jensen, S
Format: Article
Language:English
Subjects:
CAROTENOIDE
CAROTENOIDES
COLOR
COULEUR
FARINE POUR ANIMAUX
GALLIFORMES
GRAMINEAS
GRAMINEE
HARINA PARA PIENSOS
TEGUMENTO
TEGUMENTS ET PHANERES
XANTHOPHYLLE
XANTOFILAS
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Summary:The carotenoids in the supraocular combs of male capercaillie Tetrao urogallus offered two different, specified diets were examined quantitatively and qualitatively. Birds offered the diet richest in carotenoids (zeaxanthin and lutein) experienced the highest carotenoid concentrations (36 micrograms per bird). (3S,3'S)-Astaxanthin diester, accompanied by lesser amounts of its monoester and the free diol, were the major carotenoids, compatible with a metabolic conversion of (3R,3'R)-zeaxanthin by the bird
ISSN:0032-5791
1525-3171
DOI:10.3382/ps.0720747