Figure 1From: Fertility in a high-altitude environment is compromised by luteal dysfunction: the relative roles of hypoxia and oxidative stressOxidative stress biomarkers in cycling sheep at a high altitude. Malondialdehyde (panel A), carbonyl groups (panel B), and the total antioxidant capacity (panel C) were measured in cycling sheep at a high altitude that were either unsupplemented (HH: high-altitude natives; LH: low-altitude natives) or supplemented daily (HHV: high-altitude natives; LHV: low-altitude natives) with vitamins C and E. Groups LL and LLV correspond to the control cycling sheep at a low altitude without and with vitamin supplementation, respectively. The different letters above the columns indicate significant differences among the groups (P<0.05, Duncan`s test).Back to article page