Main Article Content
Oxidative stress is present in buffaloes with diaphragmatic hernia not only because of endogenous antioxidant deficiency but also because of reperfusion injury owing to intraoperative animal posture. This study was planned in 12 buffaloes with diaphragmatic hernia which was corrected surgically either with or without positive pressure ventilation. The extent of oxidative stress was estimated by studying MDA and SOD levels in blood. Both MDA and SOD increased at different stages of operation and did not differ significantly in animals with or without positive pressure ventilation.