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浙江省洞头县双兴水产养殖场选择21.8亩虾塘,开展封闭式高密度养虾,日前喜获成功。 据了解,该养殖场于5月7日、6月5日先后投放南美白对虾苗126万尾,平均每亩放苗5.7万尾,在技术上主要抓住防止夏秋高温缺氧和病害两大关键问题,即增设循环流水和增氧设备,并根据池塘的放养密度以及不同阶段的虾体大小,采取捕大放小的轮捕方法,逐渐降低密度,增加空间,预防缺氧。同时采取“四消毒”(即用水、底质、虾苗、饵料),有效地增强对虾抗病能力。经过努力,共产商品虾5.5吨,平均
Dongting County, Zhejiang Province, Shuangxing aquaculture farms choose 21.8 acres of shrimp ponds to carry out closed-type high-density shrimp, has recently been successful. It is understood that the farm on May 7, June 5 has put 1.65 million white shrimp Maui, an average of 57,000 per acre Fangmiao, technically seize the main summer and autumn to prevent high temperature hypoxia and disease two The key issue is the addition of circulating water and aeration equipment. According to the stocking density of ponds and the size of shrimp bodies at different stages, the catching and catching method of catching small and small size is adopted to gradually reduce the density, increase the space and prevent the lack of oxygen. At the same time to take “four disinfection” (that is, water, sediment, shrimp, bait), effectively enhance shrimp resistance to disease. After hard work, the shrimp produced 5.5 tons of shrimp on average