Effects of Feeding Vitamin E on Blood Biochemical Indicators and Antioxidant Capacity of Transport-stressed Dairy Cows
The aim of this study was to investigate the effect of vitamin E feeding on transport stress in dairy cows.In this experiment,10 healthy cows with age(17±1.5 months)and weight(485.5±48.3 kg)were randomly selected as research subjects,and the weight and body temperature of the cows were recorded before and after transportation.Collect venous blood from cows to detect blood indicators,including blood biochemical indicators,inflammatory factors(IL-1β,TNF-α and IL-6)and oxidative stress-related indicators(MDA and SOD).To comprehensively evaluate the effects of feeding vitamin E on blood biochemical indicators and antioxidant capacity of transport-stressed dairy cows.The results showed that transport stress could lead to a significant weight loss of cows(P<0.05),and vitamin E supplementation could reduce the weight loss of cows and alleviate the effect of transport stress on cow body weight.Feeding vitamin E can alleviate the impact of transportation stress on the weight of dairy cows.After feeding vitamin E,the levels of creatinine in the blood of dairy cows increased significantly(P<0.05),alanine aminotransferase,aspartate aminotransferase,albumin,total bilirubin,direct bilirubin,indirect bilirubin,cholinesterase,blood levels of urea and lactate dehydrogenase were significantly reduced(P<0.05).After feeding vitamin E,the serum IL-1β,TNF-α,IL-6 and MDA of dairy cows were significantly reduced(P<0.05),while the SOD activity was significantly increased(P<0.05).The above results show that feeding vitamin E can alleviate the transportation stress of dairy cows and improve their antioxidant capacity.The results of this study are expected to provide a theoretical basis for the method of alleviating the stress of dairy cows during transportation.
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