南美白对虾原分布在中、南美洲太平洋沿岸水域,外形似中国对虾,正常体色为浅灰色,壳薄体肥、肉质鲜嫩、营养丰富,深受国内外市场欢迎。因南美白对虾为热带虾类(生存温度范围8℃—47℃,最适生长水温为22℃—28℃),生长速度快,养殖70天即可上市,在我国南方地区一年可养三茬。在长江中下游地区一年养二茬的时间充裕,在苏北里下河地区双茬虾养殖,一般亩产可达300—400公斤,产值万元以上,亩纯收入数千元。即4月份利用塑料大棚培育池暂养早期苗,5月上旬出池放养,7月初开始轮捕上市,月底前捕 South American white shrimp was originally distributed in the waters of the Pacific coast of South America, the appearance of shrimp like China, the normal body color is light gray, shell thin body fat, fresh meat, nutritious, welcomed by domestic and foreign markets. Because P. vannamei is a tropical shrimp (survival temperature range of 8 ℃ -47 ℃, the optimum growth temperature of 22 ℃ -28 ℃), fast growth, breeding 70 days to market in our country can raise three a year Stubble. In the middle and lower reaches of the Yangtze River, there is plenty of time to raise stubble in one year. In the Lixiahe area of ​​northern Jiangsu, double stubble shrimp farming generally yields 300-400 kg per mu, more than 10,000 yuan of output value and thousands of yuan of net income per mu. That is, in April the plastic greenhouses incubation ponds hold early seedlings in early May out of the pool stocking, beginning in early July round the market, the end of the month before the catch