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. 2011 Jun 29;6(6):e21653. doi: 10.1371/journal.pone.0021653

Figure 4. Carotenoid supplementation and foraging performance.

Figure 4

Mean ± S.E. change in the number of food pellets eaten by finches in the red-filtered light (solid bars) and the full light (open bars) following eight weeks on a low carotenoid, astaxanthin- (asta) supplemented, or zeaxanthin- (zea) supplemented diet.