论文部分内容阅读
1984年北京市水产研究所首次推出高密度集约化养殖模式后,北京市水产养殖业日新月异,蓬勃发展,带动了北京市养鱼业的发展。全市鱼产量年以500万公斤的速度递增,至今仍方兴未艾,鲤鱼产量仍占全市淡水水产品产量的40％左右。由于高密度集约化养殖,水体环境富营养化程度日趋加剧及数千万鲤鱼种的流通,为鱼病提供了传播、滋生的温床,使鱼病大肆泛滥,如鲤鱼暴发性败血症、鲤鱼单
After Beijing Aquatic Research Institute first introduced high-density intensive farming in 1984, the aquaculture industry in Beijing is changing rapidly and vigorously, driving the development of Beijing’s fish farming industry. The city’s fish production in 5 million kilograms of annual growth rate, is still in its ascendant, carp production still accounts for about 40% of the city’s freshwater aquatic products. Due to intensive intensive farming, the eutrophication of the water environment is aggravating day by day and the circulation of tens of millions of carp species provides a hotbed for fish diseases to spread and flourish. Fish diseases such as fulminant carp septicemia, carp single