Recently, Xu Dong of Jingjiang City called the newspaper "fishing techniques" 110. It was reported that after using certain drugs in the ponds or ponds of crayfish ponds, only the bottom fish such as squid could be removed without harming the upper fish. The effect of squid, he asked: What is the drug called? How safe is it? How should it be used? The reporter interviewed Tang Jianqing, a researcher at the Jiangsu Provincial Institute of Freshwater Fisheries, on this issue. Tang Jianqing said that in the past few years he has guided the farmer pond polyculture of crayfish and carp to find a “strange phenomenon†and to disinfect ponds in the clear pond. Wild fish farmers often clear the wild fish in the pond (including the upper fish) and then rearrange the catfish when they are polyculture. This not only causes waste of resources, but also increases the cost of farming. In the years of crayfish guidance production, through practical demonstration, they found that the use of clear ponds 2008, clear pond 2009 and other clearing ponds to feed the wild fish in the pond can kill the bottom of the wild fish, but not Affects the growth of surface fishes in pond waters. Xue Hui, a researcher at the Institute of Freshwater Fisheries in Jiangsu Province, said that Qingtang 2008 and Qingtang 2009 were actually a kind of clear pond disinfectant commonly used by farmers during winter in Qingtang, and its main component might be a hemoglobin lectin ( There is no harm to crustacean aquatic animals such as crayfish). The main reasons why Qingtang 2008 and Qingtang 2009 can play a role are mainly that squid feed mainly on phytoplankton and plants, and generally do not actively feed the feed. Therefore, when feeding on feed containing hemoglobin lectin, squid and other food intake After the fish eats, it will cause haemolysis and death, so as to achieve the purpose of removing the fish (bottom fish) in the crayfish culture pond. SUNSON`s Baking Business Division focuses on solutions for flour and flour
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