铁岭市主要养殖区鱼病调查与分析

Tieling main culture zones fish disease investigation and analysis

2007年5月至2009年9月,通过对铁岭市辖区的开原市、铁岭县、昌图县淡水鱼类主要养殖区的池塘和小型水库鱼类常见鱼病种类、发病季节、流行情况及危害程度进行调查与分析,初步摸清了近三年鱼病的种类、流行、发病特点。共发现鱼病12种:其中细菌性鱼病6种、寄生虫病5种、真菌类鱼病1种,其中细菌性鱼病和寄生虫性鱼病是主要水产养殖病害,分别占病原比例50%和41.7%。在调查发现的12种鱼病中,以细菌性鱼病发病率最高,为6.1%;其次是寄生虫性鱼病,发病率为1.117%;发病率最低的是真菌类鱼病,为0.3%;对我市辖区内鱼类危害严重的鱼病有4种:水霉病,竖鳞病,败血症,烂鳃病。调查结果可以为我市鱼类健康养殖提供第一手基础性的参考资料,为鱼类病害防治提供理论依据,同时指导养殖户和渔业技术人员有效地防治鱼类病害的发生。

his article from May 2007 to September 2009 more than two years,the area of the Kaiyuan,Tieling,Changtu,the main breeding areas of freshwater fish ponds and small reservoirs of fish common fish species,Seasonal incidence and prevalence and harmfulness of fisheries survey,nearly three years,initially to find out the types of fish diseases,the prevalence and characteristics.Total of 12 species of fish diseases： six kinds of bacterial fish diseases,five kinds of parasitic fish diseases and one kinds of fungal fish diseases,including bacterial fish diseases and parasites of fish diseases is a major aquaculture diseases,accounting for 50% and 41.7% of the proportion of pathogens.The survey was found that 12 types of fish in to the highest incidence of bacterial fish diseases was 6.1%,followed by the parasitic fish diseases,the incidence rate was 1.117%,lowest incidence of fungal fish diseases was 0.3%.Harm to the city area there are four kinds of serious fish diseases： fungus diseases,vertical scale disease,sepsis,gill rot.The survey can provide the theoretical basis of fish healthy breeding for disease control,and technical person and fisheries control the occurrence of fish diseases effectively.