论文部分内容阅读
在黄河口地区特定的水质条件下，采用“半封闭、半精养”养虾方式，平均亩产对虾６０．３ｋｇ，饵料系数１．８，投入产出比为１：２．８５，每亩产值２２９０元，纯利１３３８元。产量和经济效益分别比项目实施前增加９４．５％和１７００％。专家鉴定认为：本研究居国内先进水平。
Under the condition of specific water quality in the Yellow River estuary area, the method of “semi-enclosed and semi-intensive” shrimp farming was adopted, with an average yield of 60.3 kg per mu of shrimp and a feed ration of 1.8 with an input-output ratio of 1: 2.85 per acre The output value of 2290 yuan, net profit of 1338 yuan. Output and economic benefits increased by 94.5% and 1700% respectively compared with those before the project implementation. Experts believe that: This study Habitat domestic advanced level.