大瓶螺是一种难得的淡水食用螺,原产于南美洲亚马逊河流域。1980年传入台湾,1981年广东省首先引进饲养。由于大瓶螺饲养方法简单。繁殖率高、生长快、产量高、肉质鲜美,营养丰富,饲养周期短,饲料来源广,费工少,成本低,经济效益高等优点,目前全国各地饲养者愈来愈多。一、大瓶螺的生活特性大瓶螺的生活史比较简单,一般雌、雄螺 Bottlenose is a rare freshwater snail, native to South America’s Amazon basin. In 1980, it was introduced to Taiwan. In 1981, Guangdong Province introduced it first. Due to the method of feeding bottlenecks simple. Reproductive rate is high, fast growth, high yield, delicious meat, nutritious, short breeding cycle, wide source of feed, less labor, low cost, high economic benefits, more and more breeders all over the country. First, the life characteristics of large bottle snails Large bottle snail life history is relatively simple, the general female, male screw