Prevention should be the main treatment for fish diseases. The key to prevention lies in normal and healthy breeding, including cleaning and disinfecting ponds, scientific feeding, rational fertilization, regulating water quality, preventing diseases regularly, optimizing environment and strengthening management. Mastering these key contents and technologies can completely control or reduce the occurrence and harm of fish diseases. According to the growth needs of fish in different growth stages, high-quality fish feed is fed, scientific feeding management is carried out, the resistance of fish to diseases is improved, and the invasion of bacteria is prevented by the immunity of fish, so as to achieve the effect of not using drugs or using drugs less.
2. Optimize the breeding environment to prevent the spread of epidemic diseases.
The establishment of aquaculture farms should meet the requirements of fish epidemic prevention, and its site selection and design should choose places with no industrial pollution, stable water source, fresh water quality, quiet environment and leeward to prevent the harm of industrial and agricultural pollution to fish. Strengthen the management of inputs in the process of breeding, such as fry, feed, fishery medicine, etc. In addition, using bioremediation technology, we will vigorously develop various probiotics and microecological agents, degrade organic substances and poisons in water by biological methods, and improve and repair the water environment.
? 3. Implement immunization to control epidemics.
Vaccination, timely immunization and regular deworming should be carried out for some infectious diseases in order to effectively control the epidemic situation.
Second, accurately diagnose the condition and strictly implement the standardized medication 1. Correct diagnosis, the right medicine.
There are many reasons for fish diseases. Generally speaking, there are three main factors: pathogen, host and environment. If the interaction among them is out of balance, it will cause fish diseases. In order to achieve the purpose of treatment, we must first analyze and study its etiology, so as not to delay the illness and make a diagnosis and treatment in time. ?
? 2. Standardize operation and use drugs scientifically.
To treat fish diseases, we should standardize the use of drugs under the guidance of qualified fish doctors, and choose fishery drugs with low cost, good effect and little side effects to use according to the prescribed dosage. Some farmers use insufficient or excessive drugs because of inaccurate calculation or irregular dosage of aquaculture water. Insufficient medication can not achieve the therapeutic effect, wasting money; Excessive, exceeding the tolerance range of fish will cause death, waste investment, enhance the drug resistance of fish, and bring difficulties to future prevention and control.
3. Make records and accumulate experience.
To treat fish diseases, a "medication record" must be filled in, including the name of the drug, the mode of medication, the dosage, the date of withdrawal, etc. It can not only standardize the medication procedure, but also accumulate experience for the treatment in the coming year.
Three, adhere to the principle of drug selection, to ensure the high efficiency and low toxicity of fishery drugs, and try to use safe, non-toxic or low-toxic fishery drugs. Drugs used to treat and prevent diseases should be products produced by fishery drugs and feed production enterprises that have passed quality certification, and "green fishery drugs" with high efficiency, low toxicity, no pollution and no residue should be used as far as possible to minimize adverse reactions such as drug residues and poisoning. ?