The Pearl River Research Institute”a composition for preventing and controlling saprolegniasis in aquaculture and its preparation method” obtained the national invention patent authorization
By: Date: 2021-04-01 Categories: foodtechnology Tags: ,
   a few days ago, a composition for the prevention and treatment of water mold in aquaculture was invented by Gong Hua, an assistant researcher from the Aquatic Diseases and Immunity Laboratory of the Pearl River Fisheries Research Institute.”And its preparation method” has obtained the national invention patent authorization, the patent number is ZL2017 1 0721888.1.

   The present invention is a prevention and control method for the frequent occurrence of water mold after immunization of fish, mainly related to the prevention and control of water mold, which is the most difficult problem in the prevention and control of aquaculture diseases . It is difficult to treat farmed animals suffering from fungal diseases. In the past, the most effective control drug was malachite green. However, since 2002, my country has banned the use of malachite green in food animals. It is more difficult to control the disease in production.

   For a long time, saprolegniasis, also known as skin mildew and white hair disease, is a fungal fish disease that can occur all year round, especially in early spring and late In winter, the disease is most severe when the water temperature is 15-20℃. According to statistics, among 118 biological diseases, fungal diseases are mainly saprolegniasis. According to reports, herring, grass carp, silver carp, bighead, seabass, char, carp, silver carp, channel catfish, giant salamander, rice field eel, obscured puffer, moon snake, salmon, snakehead, Chinese mitten crab, Chinese soft-shelled turtle, Most aquaculture animals such as bullfrogs are likely to develop saprolegniasis, especially during the low temperature period. After the vaccine is injected, the fish’s body is subject to stress and water temperature stimulation, and a large-scale outbreak of saprolegniasis will occur. On the basis of previous experiments, this patent has done an exploration and research on the pathogenesis and effects of use. It uses a combination of Chinese medicines such as Sophora flavescens, Galla Chinensis and salicylic acid, scientific compatibility, clearing away heat and detoxification, removing dampness and averting sores, splashing in the whole pool, every 1m3 Use 0.75~1g of this product for water body (500~750g for water depth of 1 meter per mu of water body), first use 4 times the amount of hot water to dissolve completely without agglomeration, let it cool for 10 minutes, or add cold water, and splash the whole pond. Use it for 3 days. For net cages or large water surfaces, it is best to hang bags near the feed table, and the dosage is about 5%of the fish population. Or concentrated in the net cage to soak in the bath, the effect is better. Afterwards, it has shown good results in ornamental fish, large-scale farmed fish and characteristic farmed fish. This patent is a practical achievement of injection immunization, and also provides technical support and guarantee for the large-scale promotion of aquatic vaccines.
The Pearl River Research Institute”a composition for preventing and controlling saprolegniasis in aquaculture and its preparation method” obtained the national invention patent authorizationimage