论文部分内容阅读
目的评价果园养鸡在山丘型血吸虫病流行区的灭螺效果。方法在四川省蒲江县长秋乡选择果园,一次性放养1月龄小鸡100只,作为实验组;另选择环境、种植类型及螺情相似的果园作为对照组,对照组采用常规灭螺措施。观察两组的有螺框出现率、活螺密度、植被变化情况、药肥施用及收成情况。结果实验组在养鸡3个月后有螺框出现率和活螺平均密度较基线调查分别降低了86.9%和98.1%(P<0.001),其下降幅度高于采取常规灭螺措施的对照组(P<0.05)。实验组在养鸡4个月后的有螺框出现率和活螺平均密度与养鸡3个月后相比有进一步下降;对照组在同月份有螺框出现率及活螺平均密度较上一月份有所回升,实验组和对照组两项螺情指标的差异有统计学意义(P均<0.05)。实验组的费用效益比对照组每亩可增加收入2 228.5元。结论果园养鸡灭螺的效果优于常规方法,灭螺效果也能维持较久。降低了血防工作的成本,同时增加了果园的收入和减少开支。
Objective To evaluate the snail killing effect of chicken in orchard on schistosomiasis endemic area. Methods 100 orchards of 1-month-old chickens were selected to select orchards in Changqiu Township, Pujiang County, Sichuan Province as the experimental group. In the control group, the control group was selected with the environment, planting type and orchards with similar mollusks. . Observe the occurrence rate of screw frame, live screw density, vegetation change, application of fertilizer and harvest in both groups. Results The rate of occurrence of snail box and the average density of live snails in experimental group decreased by 86.9% and 98.1% (P <0.001), respectively, three months after the raising of chicken, which was significantly lower than that of the control group (P <0.05). In the experimental group, the incidence of snail box and the average density of live snails after 4 months of chicken further decreased compared with that of chicken after 3 months; in the control group, the occurrence rate of snail frame and average density of live snails There was a slight rebound in January. There was significant difference between the two snail indicators in experimental group and control group (all P <0.05). The cost-effectiveness of the experimental group than the control group can increase revenue 2 228.5 yuan per mu. Conclusion Orchard chicken snail better than the conventional method of snail effect can also be maintained for a long time. Reduce the cost of blood-borne work, while increasing the orchard income and reduce expenses.