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为了解决化学杀螺药物对水生动物的毒害问题，采用杀螺药物增效剂，药用植物槟榔（ＢＬ）的氢溴酸盐分别与五氯酚钠或氯硝柳胺协同作用，观察其对鳙鱼苗的减毒效果。结果表明，０．４ｍｇ／Ｌ的氯硝柳胺与０．００６１０ｍｇ／ＬＢＬ氢溴酸盐合用时，鱼苗的死亡率仅为４％，而未加ＢＬ氢溴酸盐时死亡率为８０％（Ｐ＜０．０１）。０．４６９ｍｇ／Ｌ五氯酚钠与０．００６１０ｍｇ／ＬＢＬ氢溴酸盐合用时，鱼苗的死亡率由单独使用同浓度五氯酚钠时的９８％降至１１％（Ｐ＜０．０１）。各组两者之间均有非常显著性差异。实验证明ＢＬ氢溴酸盐分别与氯硝柳胺或五氯酚钠合用灭螺时均能降低其对水生动物的毒害作用，且减毒效应以五氯酚钠表现的更为明显
In order to solve the problem of poisoning of aquatic animals by chemical snails, the synergistic effect of the molluscicides synergist and the hydrobromide of betel nut (BL) medicinal plants were investigated with sodium pentachlorophenol or niclosamide respectively. Anchovy fish attenuated effect. The results showed that the mortality of fry was only 4% when 0.4mg / L niclosamide was combined with 0.00610mg / LBL hydrobromide, while the mortality rate was 80% (without BL hydrobromide) P <0.01). When 0.469mg / L sodium pentachlorophenate and 0.00610mg / LBL hydrobromide were used together, the mortality rate of fry was reduced from 98% to 11% (P <0.01) when using the same concentration of sodium pentachlorophenate alone. . There was a very significant difference between the two groups. Experiments show that BL hydrobromide and niclosamide or pentachlorophenol combined snail killing can reduce their toxic effects on aquatic animals, and the attenuated effect of sodium pentachlorophenate showed more obvious