Publikationsdatenbank

Concentrations of retinol, 3,4-didehydroretinol, and retinyl esters in plasma of free-ranging birds of prey (2012)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Müller, K

Raila, J

Altenkamp, R

Schmidt, D

Dietrich, R

Hurtienne, A

Wink, M

Krone, O

Brunnberg, L

Schweigert, F J

Quelle

Journal of animal physiology and animal nutrition : official journal of the European Society of Veterinary and Comparative Nutrition and the American Academy of Veterinary Nutrition

Bandzählung: 96

Heftzählung: 6

Seiten: 1044 – 1053

ISSN: 0931-2439

Sprache

Englisch

Verweise

DOI: 10.1111/j.1439-0396.2011.01219.x

Pubmed: 21895779

Kontakt

Klein- und Heimtierklinik

Oertzenweg 19 b
14163 Berlin
+49 30 838 62422
kleintierklinik@vetmed.fu-berlin.de

Abstract / Zusammenfassung

This study investigated vitamin A compounds in the plasma of healthy free-ranging Central European raptors with different feeding strategies. Plasma samples of nestlings of white-tailed sea eagle [white-tailed sea eagle (WTSE), Haliaeetus albicilla) (n = 32), osprey (Pandion haliaetus) (n = 39), northern goshawk (Accipiter gentilis) (n = 25), common buzzard (Buteo buteo) (n = 31), and honey buzzard (Pernis apivorus) (n = 18) and adults of WTSE (n = 10), osprey (n = 31), and northern goshawk (n = 45) were investigated with reversed-phase-high-performance liquid chromatography (RP-HPLC). In WTSE, northern goshawks and common buzzards retinol were the main plasma component of vitamin A, whilst in ospreys and honey buzzards, 3,4-didehydroretinol predominated. The median of the retinol plasma concentration in the nestlings group ranged from 0.12 to 3.80 μm and in the adult group from 0.15 to 6.13 μm. Median plasma concentrations of 3,4-didehydroretinol in nestlings ranged from 0.06 to 3.55 μm. In adults, northern goshawks had the lowest plasma concentration of 3,4-didehydroretinol followed by WTSE and ospreys. The plasma of all investigated species contained retinyl esters (palmitate, oleate, and stearate). The results show considerable species-specific differences in the vitamin A plasma concentrations that might be caused by different nutrition strategies.