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Fish pond commonly used antiviral drugs
Common viral diseases of freshwater fish are mainly grass carp hemorrhagic and acne sores. The pathogens are grass carp hemorrhagic disease virus and herpes virus of the Reoviridae family, respectively. Viruses are tiny types that pass through a bacteria filter and contain a nucleic acid that can only grow in living cells in a non-cellular form of microorganism. The virus particles are small and the size of the virus is measured in nanometers (1/1000 microns). To observe the virus, it is generally necessary to use an electron microscope to magnify it by thousands to tens of thousands of times. As the virus is parasitized in host cells, there is no ideal drug to treat the virus. The current antiviral drugs mainly prevent the virus from invading the host and interfering with the replication of the virus. Viral diseases are very harmful. The main symptoms of infection often appear after the development period. Therefore, the use of drugs is not effective. Moreover, the virus is parasitic in the cells of the host, so once the disease is difficult to cure. Therefore, viral fish disease should be mainly prevention. 1. Voltio-iodine (PVT-I) ã€Properties】 Volt Iodine is a yellow-brown amorphous powder with an effective iodine content of 0.6 to 1.0%. It is soluble in water, its aqueous solution is acidic, and its storage stability. [Function] Volatile iodine is a complex of polyvinylpyrrolidone (PVP) and iodine (I). When the reduced material in the tissue is encountered, free iodine is slowly released, which is a high-molecular drug with a sustained release property. It can not be compared with molecular iodide (such as iodine), it has less skin irritation, low toxicity and high efficacy. Its bactericidal spectrum is wide, and it has good disinfection effect on bacteria, fungi and viruses. [Use] Mainly used to prevent aquatic animal viral diseases. ã€Usage and Dosage】 Oral: 164-191 mg effective iodine per 100 kg of fish body weight per day. Mixed baits were fed for 15 consecutive days or to prevent viral hemorrhagic septicemia and other viral diseases. Summer flowers are fed with iodine every 2 weeks, 0.01 grams per fish. Medicinal bath: Fish eggs can be used 10% compound Pivotide iodine (commercial name) solution; dubbed with effective iodine 50ppm (ie, 10 liters of water is added to 50 ml Pivotide solution), dip for 15 to 20 minutes. If the pH of the water is high, 60 to 100 ppm must be used. The summer anther bath concentration is 1 ppm and it is dipped for 25 minutes. 2. Viral Ling (Morpholin hydrochloride diterpene) ã€Properties】 This product is a white crystalline powder; odorless, slightly bitter taste. Soluble in water, slightly soluble in ethanol. ã€Action】 It is an antiviral drug that can inhibit the synthesis of viral DNA and inhibit the proliferation of viruses. It is effective against many viruses. [Use] Mainly used to prevent aquatic animal viral diseases. ã€Usage and Dosage】 When the feed rate is 4%, add 0.2 g of morphine dihydrochloride per kilogram of feed. The pellet bait was fed and used for 3 to 5 days. Can play a role in preventing viral diseases.