罗非鱼不耐低温,秋末冬初,当水温降至15℃时,需及时干池起捕上市,这样罗非鱼养殖池实际只利用半年。近年来,我镇有不少精明的虾农,利用罗非鱼池速养青虾,实践表明:控制在9月上、中旬下塘,青虾在越冬前有两个月左右的生长期,只需蜕皮3次就能长成大虾,每667m~2产成虾50—60kg,由于成虾规格大,市场价格高, Tilapia not cold, late autumn and early winter, when the water temperature dropped to 15 ℃, timely dry pool catch market, so tilapia ponds actually use only six months. In recent years, I town a lot of shrimp farmers, the use of fast tilapia tilapia pond practice shows that: control in September, the middle of the next pond, freshwater shrimp before winter, about two months of growth, only Need to molting 3 times will be able to grow into prawn, shrimp produce 50-60kg per 667m ~ 2, due to shrimp specifications, the market price is high,