These results suggest that OFR might have an injury effect on the endothelium of pulmonary artery in broiler and may play an important role in the mechanism of pulmonary hypertension syndrome.

• 这说明氧自由基对肉鸡肺动脉内皮细胞具有损伤作用，可能在肉鸡肺动脉高压综合征的发病过程中起重要作用。