Effect of Astragalus Polysaccharides on Short-distance Transport Stress in Beef Cattle |
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| Authors: | LIU Yan-xin SUN Yu LI Ye-liang ZHAI Lei HAO Wan-qing GAO Teng-yun |
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| Institution: | 1. Henan University of Traditional Chinese Medicine, Zhengzhou 450008, China;
2. College of Animal Husbandry and Veterinary Medicine Engineering, Henan Agricultural University, Zhengzhou 450002, China |
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| Abstract: | To study the effect of Astragalus polysaccharide on short-distance transport stress in beef cattle,15 healthy and 12-month-old Simmental crossbred beef cattle were selected and randomly divided into control group,transport stress group and Astragalus polysaccharide test group with 5 cattles in each group.The cattles in Astragalus polysaccharide test group were fed with 10 g/d per head Astragalus polysaccharide during the experimental period.The cattles both in transport stress group and Astragalus polysaccharide test group were transported for 3 h at the speed of 60 km/h, and blood samples were collected and used for measuring some biochemical parameters. The daily gain and morbidity were measured simultaneously. The results showed that,in transport stress group,serum Na+ increased significantly in 1 d after transportation comparing to before transportation (P<0.05). serum Na+, K+, Ca2+ and Cl- showed no significant difference during the experimental period in control group and Astragalus polysaccharide test group (P>0.05).After transport (1 and 7 d),blood Na+/K+-ATP activities were extremely significantly decreased (P<0.01), SOD and GSH-Px activities were significantly decreased (P<0.05), while serum MDA contentswere significantly increased (P<0.05) in transport stress group comparing with that at 1 d before transport.These indicators of the control and Astragalus polysaccharide test group showed no significantly difference during the experimental period (P>0.05); 7 d average daily gain after transportation of control group and Astragalus polysaccharide test group were extremely significantly higher than transport stress group (P<0.01), incidence rates of respiratory and gastrointestinal of Astragalus polysaccharide test group was lower than transport stress group. The results demonstrated that Astragalus polysaccharide could be applied to the transport stress for prevention and treatment in beef cattle. |
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| Keywords: | transport stress Astragalus polysaccharide cattle antioxidant enzymes Na+/K+-ATP enzyme |
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