Promotion of pollution-free aquaculture in Tanghai County, Hebei Province

Introduction: facing the new changes brought about by China's accession to the WTO, the aquaculture industry in Tanghai County, Hebei Province has actively adjusted its aquaculture structure, vigorously promoted pollution-free aquaculture, and relied on science and technology to improve the quality of aquatic products and enhance its market competitiveness In recent years, aquaculture in Tanghai County has formed the cultivation scale of 60000 mu of fresh water, 60000 mu of sea water and 60000 mu of rice field crabs The annual output value of aquaculture industry has reached more than 600 million yuan, accounting for 51.2% of the total agricultural output value of the county, and it has become an important industry for the county to earn foreign exchange through export In order to adapt to the market situation after China's accession to the WTO, Tanghai County actively promotes the transformation of aquaculture from extensive, quantitative, predatory to intensive, ecological and sustainable development A technical expert group including 5 aquatic experts and researchers has been set up in the county, and a new comprehensive laboratory has been built to strictly monitor the water quality, biology, feed, disease and other factors in all aspects of aquaculture by using high and new technology, so as to provide reliable data for pollution-free aquaculture In addition, the technical operation rules for the pollution-free breeding of crab, puffer fish, prawn and freshwater fish in rice field were specially compiled, and the implementation standards were determined At the same time, we should vigorously introduce and promote new varieties with good market prospects, high nutritional value and high added value The county has established 4 seedling incubation bases, successively introduced more than 10 new aquatic species such as American red fish and red tilapia At present, famous and special varieties account for one third of the cultivation area.