摘要
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 the designated water quality in the region of the Yellow Rivermouth,the'semi-closed and half-intensive cultivation'method was studied to farm prawns. The average Per mu yield of prawns was 60. 3kg,the feed coefficent was 1. 8 and the ratio of input and outputwas l: 2. so. The output value Per mu was 2290 yuan and the net profit was 1338 yuan. The outputand economic benefit increased by 94. b % and 1700 %respectively,compared with that of prawn POndformerly without tubing this method.The study result appraised by experts is in the lead at home.
出处
《齐鲁渔业》
1994年第3期13-15,共3页
Shandong Fisheries
