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Articles by Zhang Junxia
Total Records ( 2 ) for Zhang Junxia
  Zhang Junxia , Zheng Chen , Hou Shengzhen , Li Fadi and Ma Liaowei
  The study was evaluated the effects of dietary energy levels on ruminal fluid parameters in Tibetan ewes. Tibetan ewes with similar weight, age, pregnant period and after delivering were assigned to three dietary treatments (Digestion Energy (DE) levels: 13.00, 13.50, 14.00 MJ kg-1) and pasturing group as control. After 60 days of experimental treatments, 14 sheep were selected rationally and ruminal fluid were collected to determine the content of Volatile Fatty Acid (VFA), pH, the concentrate of ammonia Nitrogen (NH3-N), urea N, protein N and total N of ruminal fluid. The results showed that concentration of TVFAs in ruminal fluid with higher DE than that of control group (p<0.05), meanwhile, TVFA concentration differed at every treatment group (p<0.05). Acetic/propionic, acetic, propionic, delphinic acid of treatments significantly differed with control groups (p<0.05) but no difference between each treatment group, butyric and pentanoic acid were not difference among all groups (p<0.05). Supplemental concentration might improve total N and protein N while different energy level did not affect total N significantly (p>0.05). Compared to pasturing group, the ewes’ supplementations with different energy levels did not significantly affect pH and the relative abundance of total N, NH3-N, urea N and protein N (p>0.05).
  Wang Chenxuan , Hu Ping and Zhang Junxia
  With the prophase studying aiming at the slip behavior, this paper draws a conclusion that it is the best method to prevent slippery with the design of precautionary information. Furthermore, designing three methods of precautionary information in laboratory, it had caught through data of analysis and comparison of utilized coefficient of friction in people with slip experiment, respectively by the perspectives of graphic, text and voice. Then with the comparison of average value and standard deviation, we can draw the conclusion that it is the easiest precautionary notification to alert which is graphical feature, thereby, it confirmed that the precautionary notification method which is the most universal significance is to be resorted to visual graphic.
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