【摘要】 在实验室饲养拟钉螺２年８个月，成螺在覆以苔藓植物的潮湿小环境中生长良好，存活率７３．５％。１６～２０℃（１月份）时，成螺无死亡；２２℃（５月份以后）以上时，死螺渐增。当２６．５～３３．５℃（６～９月份时，成螺死亡占全年死亡数的５７．４％，成虫于每年的４～５月开始产卵，到６月底结束。１９～２８℃时，螺卵经６～１１ｄ孵出幼螺。在２２～３３．５℃时。喂饲米粉和干酵母粉的幼螺经１１０～１３０ｄ可长为成螺。更多还原

【Abstract】 A Tricula snail has been successfully raised at room temperature in our laborato-ry.The adult snails lived well in an artificial wet habitat covered by bryophytes,with a survivalrate of 73.5%. At the temperature of 16～20℃ in January,no one was found dead,while above22℃(after May)the mortality was gradually increased.When the room temperature reached 26.5～33.5℃ during June to September,many of the snails died.The dead snails accounted for 57.4%of the annual dead number Oviposit began from April to May, and terminated by the end ofJune. It took 6～11 days at 19～28℃ for hatching,and 110～130 days at 22～33.5℃ for the larvalstage, when they were fed with rice and yeast powder.更多还原