Fig. 5From: The effects of sun exposure on carotenoid accumulation and oxidative stress in the retina of the House Finch (Haemorhous mexicanus)Mean ± SE natural-log-transformed retina lipid peroxidation (MDA equivalents) levels in retinas of low- and high-sun exposed house finches in a experiment 1 and b experiment 2. c Lipid peroxidation levels of house finches receiving the low carotenoid base diet (base) or a zeaxanthin supplement (supp)Back to article page