The Effects of Anti-Oxidative System Initiated by Ketosis in Holstein Dairy Cow

In attempt to study the effects of Oxidative system initiated by Ketosis in Holstein dairy cow, the cows were randomly divided into two groups according to the ketone body powder method, groupⅠwas the control, groupⅡwas ketosis group.GSH-Px activity,T-SOD activity and MDA Contents in serum were determined.The results showed that GSH-Px,T -SOD activity in groupⅠare significant higher than that in group Ⅱ, and the contents of MDA in groupⅡare significant higher than that in groupⅠ. Therefore ketosis in dairy affected anti-oxidative system, these results have very significance to reveal mechanism of ketosis in dairy cows.