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合肥市城郊是近几年发展起来的养鱼新区,近四年来全市共建鱼塘6,600亩,养鱼方式正从粗养过渡到精养,引进和扩大了养殖品种,单位面积产量不断提高.但随着养鱼生产的不断发展,鱼病的传播与发生也在扩大,有的已严重威胁着鱼的单位面积产量的提高.为此我们对合肥市城郊养鱼常见的鱼病,及其症状、流行情况和危害性作了初步调查,为今后普及鱼病知识和开展鱼病防治研究提供参考. 一、调查方法(一) 春季对城郊五个社队渔场进行实地调查.这五个渔场是:杏花村公社养殖场、五一大队渔场、金华大队渔场、常青公社仰光大队渔场、优胜公社五里拐大
The suburbs of Hefei is a new fish farming area developed in recent years. Over the past four years, the city has built 6,600 mu of fish ponds. The fish culture mode is undergoing transition from intensive farming to intensive cultivation. The breeding varieties have been introduced and expanded, and the yield per unit area has been continuously raised. However, with the continuous development of fish farming, the spread and occurrence of fish diseases are also expanding, and some of them have seriously threatened the increase of fish yield per unit area.To this end, Symptoms, epidemics and dangers made a preliminary investigation, in order to popularize the knowledge of fish diseases and to provide a reference for the future research on prevention and treatment of fish diseases.First, the survey method (a) field investigation of the five community fishing teams in the suburbs in spring.The five fisheries Is: Heng Fa Chuen commune farms, the 51 fisheries group, Jinhua brigade fisheries, Evergreen commune Yangon brigade fishing grounds, winning commune Wuli large