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福寿螺原产于南美洲的亚马逊河流域,故又称美洲螺或巴西螺。它体型大,食用性好,营养丰富,色、味、香俱佳,饲养管理简单,饲料来源广泛;其生长快,繁殖力强,一般从孵出养至3～4个月,体重达15克以上时,即可产卵繁殖,每年可产卵2,000～3,000粒。试验情况和结果1985年7月,在福寿螺产卵旺季进行对照试验。7月10日将亲螺放入产卵箱(即有机玻璃箱)中,在此之前,将玻璃箱用漂白粉清洗一遍,并将玻璃箱四周用几层深色的厚纸或厚布裹紧围住,避免外界光线的射入。7月14日试验组亲螺开始产卵,对照组亲螺于7月15日开始产卵,8月上旬统计结果,试验
Lucky snails native to the Amazon basin in South America, it is also known as the American spiral or Brazil spiral. Its body size, good edible, nutrient-rich, color, taste, incense and superb, feeding and management is simple, a wide range of sources of feed; its fast growth, fertility and strong, generally from hatching to 3 to 4 months, weighing 15 G or more, you can spawn breeding, spawning 2,000 to 3,000 tablets per year. Tests and Results In July 1985, a control trial was conducted on the spawning peak of P. spiralis. July 10 will be pro-spawn into the oviposit case (that is, plexiglass case), prior to this, the glass box with bleach to clean it again, and around the glass with a few layers of dark thick paper or thick cloth tight Enclosure, to avoid the injection of outside light. On July 14, the test group started to spawn, and the control group, the progenitor spawned on July 15, and the statistics in early August showed that the test