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近两年,沅江市鹭鸶湖渔场在80hm~2连片池塘中进行了主养草鱼的探索,2001年平均每667m~2水面鲜鱼产量、产值、净利润分别为623.7kg(其中草鱼占62.8％)、3,558.3元、1,063.3元,投入产出比1:1.46,净利润率46.3％,经济效益较主养鲢鳙鱼高40％以上。本文结合生产实践提出了大规模池塘主养草鱼的放养模式、饲养管理、鱼病综合防治等操作要点。
In the past two years, Egret Lake Fishery Farm in Yuanjiang City conducted exploration of main grass carp in 80hm ~ 2 contiguous ponds. In 2001, the average output of fresh fish per 667m ~ 2 surface area was 623.7kg (including grass fish accounted for 62.8% %), 3,558.3 yuan, 1,063.3 yuan, input-output ratio of 1: 1.46, net profit margin of 46.3%, more than 40% higher economic benefits of silver carp bighead carp. In this paper, with the practice of production put forward the large-scale pond grass carp stocking mode, feeding management, comprehensive prevention and treatment of fish diseases and other operational points.