【摘要】 317种动、植物经过筛选,景天科植物垂盆草(Sedum sarmentosum)有一定的诱集钉螺作用,从钉螺对垂盆草的舔食次数和饲养在垂盆草培养皿中成螺和幼螺的解剖观察可知,成螺和幼螺均喜食垂盆草。室内观察,垂盆草诱获的钉螺数多于小球藻液和青菜,差异显著(P值均<0.05)。水面诱螺观察,垂盆草帘诱获的成、幼螺数是稻草帘的2.8和3.0倍,差异非常显著(P值均<0.01)。更多还原

【Abstract】 As a result of screening, we discovered that Sedum sarmentosum Bunge was most preferred among 317 kinds of snail food. Both adult and young snails readily eai S, sarmentosum as evidenced by laboratory observation and dissection of the snails.In aquarium, more snails were attracted by S. sarmentosum than by Chunese cabbage and Chlorella suspension. On water surface, S. sarmentosum curtains attracted adult snails 2.l-3.7 times and immature snails 2.3-4.1 times more than rica straw curtains.更多还原