At the moment, the aquaculture industry is booming. The expansion of the scale of farming and the increase in density have also brought about the spread of diseases in aquatic products. Therefore, in the breeding process, how to prevent diseases and treat diseases is even more important, but which drugs should not be used? 1, copper sulfate, the current farmers in the treatment of fish parasitic whipworm, ciliates, straw insects and other parasitic diseases commonly used in copper sulfate and ferrous sulfate mixture spilled, but copper sulfate will cause fish to enlarge the renal tubules, around the tubules Kidney tissue necrosis, destruction of hematopoietic tissue, increased liver fat, copper residues and other adverse consequences, and the toxicity of copper sulfate is greatly affected by water environmental factors, it is difficult to accurately grasp the use of the amount, if inadvertent, but also easy to cause dead fish, so aquaculture Should not be used on. 2. Malachite green, because of its teratogenicity and carcinogenicity, has been banned from being used on aquatic products. For the treatment of hydromycosis, other drugs or herbal preparations may be used. 3. Trichlorfon, an organophosphorus insecticide, can be hydrolyzed to dichlorvos under alkaline conditions. The toxicity is stronger, plus its safe concentration range is small, and shrimp, crab, rainbow trout, ferret, beard Since it is sensitive to cockroaches and bigmouth owls, it is also not suitable for aquaculture. If crustaceans and helminth parasites are to be treated, alternative products may be used. 4, mercury preparations, in the past, the treatment of small echinococcosis, commonly used mercury acetate or mercuric nitrate, but because of its carcinogenicity, it has been banned. 5. Antibiotics. At present, whether it is the addition of feed manufacturers or the direct use of farmers, antibiotics are commonly used in aquaculture, but because of their residual characteristics, the European Union has stipulated that antibiotics should not be added to feed. The Sichuan Breeding Management Station also sent notification to farmers across the province that the use of antibiotics such as chloramphenicol, streptomycin, tetracycline, and sulfonamides was prohibited. Therefore, when a wide range of farming friends use drugs, they should not be used because the general antibiotics are cheaper. In the end, if the drug tests fail, if the raised fish cannot be sold, it will be our own loss. To sum up, due to the high toxicity, residual nature, and difficulty in grasping of some drugs, the majority of farmers must be careful in the course of medication, disease prevention, and treatment. It is best to consult the relevant staff of the Aquatic Station or professional aquatic disease prevention and treatment. Workers. (Fun News: 611730, Agricultural College of Sichuan Agricultural University 2000 Aquaculture Department)
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