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First published online March 16, 2007
Journal of Experimental Biology 210, 1238-1244 (2007)
Published by The Company of Biologists 2007
doi: 10.1242/jeb.002741
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Carotenoid availability does not limit the capability of nestling kestrels (Falco tinnunculus) to cope with oxidative stress

David Costantini1,2,*, Alberto Fanfani1 and Giacomo Dell'Omo3

1 Dipartimento di Biologia Animale e dell'Uomo, Università La Sapienza, Viale dell'Università 32, 00185 Roma, Italy
2 Dipartimento dell'Ambiente e Prevenzione Primaria, Unità di Chimica Tossicologica, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Roma, Italy
3 Ornis italica, Piazza Crati 15, 00199 Roma, Italy


Figure 1
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  		Fig. 1. Sketch of the timing of different parts of the experiment. Numbers indicate the day. At day 0, nestling kestrels were 7–8 days old.

 

Figure 2
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  		Fig. 2. The sample included 12 nests for a total of 61 nestling kestrels (open circles, controls, N=30; filled circles, supplemented, N=31). (A) Circulating carotenoids increased in supplemented nestlings, but returned to basal levels at the end of the experiment; (B) supplemental carotenoids did not affect the level of oxidative damage as measured by serum reactive oxygen metabolites (ROMs); (C) supplemental carotenoids did not increase the serum anti-oxidant capacity (OXY). Values are shown as mean ± s.e.m. Tukey post-hoc comparisons: *P<0.05; **P<0.01; ***P<0.001.

 




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