1, should be no disease first defense, bogey after the drug.
The early symptoms of fish are not easily observed. When they are found, sick fish often have little or no food intake, making it difficult to use drugs.
2, should be regularly prevented, avoid air defense I prevent.
Fish disease has a certain periodicity. For example, in the early spring and late autumn, low water temperature fishes are prone to watery mildew, and in early summer and mid-autumn days, grass carp and herring are old “three diseasesâ€. In summer, high water temperature period is the season of high incidence of fulminant fish disease. According to this regularity of fish disease, you can advance prevention.
3, should be comprehensive prevention, avoid single medication.
Fish disease is the result of a combination of factors, so prevention of fish diseases must be based on various pathogenic factors, take comprehensive measures, inhibit pathogens, improve the water environment, and improve fish disease resistance. Including thorough clearing ponds, disinfection of fingerlings, regular water injection and application of quicklime, scientific fertilization and feeding, regular external treatment and so on.
4, should be low temperature disinfection, avoid high temperature medicine bath.
Medicinal bath is an important method for preventing and treating fish diseases, and is generally performed in barrels or tubs when stocking fish species in the cold season. This method is adopted in summer. Due to the high water temperature, the effect of the drug is enhanced and the hazard is great.
5, should change the medication, avoid single medication.
If a single drug is used to prevent and treat diseases in the water body, various pathogenic bacteria and parasites of the fish will produce drug resistance and reduce the effect of medication, and it should actively promote the rotation of mixed drugs, but acidic drugs and basic drugs should not be mixed. use.
6, should choose medication, avoid using drugs at any time.
The effects of fish medicines, especially the use of Quanchiposa drugs, are closely related to water-misture, dissolved oxygen, and light. High water temperature, rich dissolved oxygen, and strong light can speed up the use of drugs and increase their efficacy. Medication side effects. Therefore, prevention and treatment should be carried out in the afternoon on sunny days.
7. Appropriate amount of medication should be used to avoid random dosage.
All kinds of fish medicine dosages are determined after many tests, which can effectively prevent and treat fish diseases and have small side effects. Excessive use not only increases the cost, but also may cause phytotoxicity.
8, should use non-metallic container storage dissolved drugs, avoid using metal containers.
Most of the fish medicines are chemically synthesized drugs, and their chemical properties are not very stable. They easily react with metals and their composition and properties change. Therefore, the containers, which are made of non-metallic materials such as ceramics, wood and plastics, should be used for the storage and dissolution of fish medicines.
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