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目的 :了解实弹射击对坦克兵肠道双歧杆菌的影响及其影响因素。方法 :通过活菌定量培养计数法 ,动态观察坦克乘员组实弹射击前后粪便中双歧杆菌数 (B)和大肠杆菌数 (E)及B/E值 ,并设非坦克乘员组做对照。结果 :坦克乘员组实弹射击前后粪便中双歧杆菌数 (logCFU ,x±s)分别为 9 5 5± 0 4 2和8 35± 0 4 8,大肠杆菌分别为 7 0 1± 0 2 0和 8 0 5± 0 4 3,B/E值分别为 1 36± 0 0 7和 1 0 4± 0 0 8;非坦克乘员组分别为 9 2 7± 0 6 5和 6 93± 0 2 9,B/E值为 1 34± 0 10。坦克乘员组实弹射击后与实弹射击前及非坦克乘员组比较 ,差异均非常显著 (P <0 0 1) ,并发现其影响因素主要有噪声、有害气体、生活质量、心理应激程度、振动、乘室空间等。结论 :实弹射击后坦克乘员肠道双歧杆菌数量明显减少 ,并受环境、心理等因素影响。
Objective: To understand the impact of live firing on the intestinal gas Bifidobacterium and its influencing factors. Methods: The numbers of Bifidobacterium and Escherichia coli (B), Escherichia coli (B) and Escherichia coli (B / E) in the feces of the tank crew before and after the live firing were measured dynamically by counting the viable bacteria. Results: The numbers of bifidobacteria (logCFU, x ± s) in the excrement of tank crews before and after the firing were 955 ± 0 42 and 8 35 ± 0 48, respectively. The numbers of Escherichia coli were 701 ± 0 2 0 and 8 0 5 ± 0 4 3 and B / E values were 1 36 ± 0 0 7 and 1 0 4 ± 0 0 8, respectively; the non-tank crew were 9 2 7 ± 0 6 5 and 6 93 ± 0 2 9 respectively, The B / E value is 1 34 ± 0 10. The difference between the tank crew and the non-tank crews after the live fire was very significant (P <0.01), and the main influencing factors were noise, harmful gas, quality of life, degree of psychological stress, vibration , Take room space and so on. Conclusion: The number of intestinal bifidobacteria in tank crew decreased significantly after being fired by live ammunition, and influenced by factors such as environment and psychology.