西藏尼木山羊自然感染东毕吸虫沉积虫卵分布与病理情况调查

发布时间：2018-02-24 21:55

本文关键词： 西藏山羊东毕吸虫虫卵分布病理切片　出处：《西南农业学报》2017年06期 　论文类型：期刊论文

【摘要】：【目的】研究西藏尼木县自然感染东毕吸虫山羊,虫卵在脏器中的分布与病理变化情况。【方法】解剖自然放牧的东毕吸虫阳性山羊,采集脏器(十二指肠、小肠上段、小肠中段、小肠下段、盲肠、结肠、直肠)显微镜下虫卵计数并观察病理变化。【结果】山羊自然感染东毕吸虫数量为1435±231.5,在脏器中,小肠中段的EPG最高,其次为盲肠和十二指肠,东毕吸虫虫卵在各脏器中的分布百分比是:十二指肠(3.50%)、小肠上段(12.57%)、小肠中段(56.41%)、小肠下段(0.52%)、盲肠(18.83%)、结肠(0.00%)、直肠(0.01%)、肝脏(8.16%)、脾脏(0.00%),小肠中段沉积的虫卵数与其他各组织相比差异极显著(P0.01)。小肠部分沉积虫卵数(73.00%)明显高于大肠部分的虫卵沉积数(18.84%),差异极显著(P0.01)。病理组织切片观察,发现小肠中段有大量虫卵肉芽结节,小肠粘膜发生炎症和轻度坏死。【结论】山羊感染东毕吸虫后不同的脏器沉积虫卵的密度和数量不同,虫卵计数与病理切片观察结果相关。
[Abstract]:[objective] to study the distribution and pathological changes of eggs in organs of naturally infected Dongbi fluke goats in Nimu County, Tibet. [methods] to dissect the natural grazing positive goats and collect organs (duodenum and upper small intestine). The egg count and pathological changes were observed under microscope. [results] the number of naturally infected paragonimiasis in goats was 1435 卤231.5. In viscera, the EPG in middle part of small intestine was the highest, followed by cecum and duodenum. The percentage of egg distribution in the organs was 3.50 in duodenum, 12.57 in the upper small intestine, 56.41 in the middle of the small intestine, 0.52 in the lower part of the small intestine, 18.83 in the caecum, 0.000. 000 in the colon, 0.01 in the rectum, 8. 16 in the liver, 0. 00th in the spleen, the number of eggs deposited in the middle segment of the small intestine and other tissues. The number of eggs deposited in the small intestine (73.00) was significantly higher than that in the large intestine (18.84%), and the difference was very significant (P 0.01). It was found that there were a large number of egg granulation nodules in the middle part of the small intestine, and inflammation and slight necrosis occurred in the small intestinal mucosa. [conclusion] the density and number of deposited eggs in different organs of goat infected with trematorrhea were different, and the egg count was related to the results of pathological sections.
【作者单位】：西藏自治区农牧科学院畜牧兽医研究所;中国农科院上海兽医研究所;西藏拉萨市尼木县农牧局兽医站;西藏拉萨市当雄县当曲卡镇兽防所;西藏拉萨市当雄县公塘乡兽防所;
【基金】：公益性行业(农业)科研专项(201303037) 2016年度西藏自治区自然科学基金项目(2016ZR-NK-06)
【分类号】：S858.27

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