"Ten suggestions" to improve the Therapeutic effect of Fishery Medicine
A variety of diseases will inevitably occur in the process of fish culture, and the effect is often not satisfactory when treated with drugs, because the therapeutic effect of drugs is affected by various factors. Here, the author puts forward the suggestion of "ten points" to improve the therapeutic effect of fishery medicine according to his own experience, which can only be used as a reference for the majority of farmers.
First, accurate diagnosis of fish disease, symptomatic use of medicine. Symptomatic medication is one of the most basic conditions to improve the effect of drug treatment, especially for some fish diseases that are easy to mix dishes (such as rotten Gill caused by parasitic Chinese mackerel and rotten Gill caused by bacterial infection, etc.). Symptomatic use of medicine can have the effect of eliminating the disease.
Second, accurately measure the water body and calculate the accurate dosage. The dose of oral medicine should be calculated according to the total weight of fish eaten in the pond or according to the daily feeding amount.
Third, find out the sensitivity of different fish to different drugs. In order to avoid the formation of drug damage, it is necessary to make clear before medication that different fish have different sensitivity to drugs, such as snakehead snakehead is more sensitive to ferrous sulfate and scaleless fish are more sensitive to trichlorfon. If these drugs are used, not only can not cure the disease of fish, but will cause poisoning and death of farmed objects.
Fourth, pay attention to the antagonism and synergism between drugs. When two or more drugs are mixed, there may be two completely different results, namely: antagonism, make the efficacy cancel each other and reduce the effect; synergism, make the drugs react with each other and enhance the efficacy. Therefore, if it is really necessary for two or more drugs to be mixed with each other, it is best to use them under the guidance of technicians.
Fifth, when sprinkling drugs in the whole pool, it is best to feed them first and then sprinkle them, because the appetite of fish will decrease after the drugs are sprinkled. In addition, it is best to use the medicine at 9 to 10:00 in the morning or 4 to 5 in the afternoon on a sunny day, so as to avoid direct sunlight at noon, because the higher the temperature, the faster the volatilization of the drug, and the shorter the duration of the effect; and it is not suitable to use drugs in cloudy and rainy days (except for some drugs that can release oxygen), because the light on rainy days is too poor, and it is easy to cause hypoxia in the fishing pond after using the medicine.
Sixth, the whole pool must be evenly sprinkled with drugs, and some insoluble and residual drugs (such as bleach) must be filtered out, so as to prevent the residue from being poisoned by fish in the pool.
7. When sprinkling medicine in the whole pool, it should be gradually sprinkled to the downwind from the upwind, and people should stand in the upwind, so that the liquid can be evenly distributed in the pool water with the help of the wind, and at the same time ensure the safety of the sprinklers.
8. Change the variety of drugs from time to time. Long-term use of the same drug to treat fish disease, the initial effect will be very good, but over a long period of time, the efficacy will often weaken, this is because the pathogen has resistance to the drug, that is, drug resistance. Therefore, the varieties of drugs should be changed periodically and used alternately.
9. when taking medicine bait internally, it is best to feed part of the normal feed first, so that healthy fish are fed with medicine bait first, so that those sick fish who are sick but still have some appetite can get medicine bait, so as to achieve the effect of drug treatment.
Containers for dissolving or disposing drugs should be plastic buckets or wooden buckets, not metal containers, because most fish medicines are easy to react with metals to change the composition and properties of the drugs.
- Prev
Introduction of commonly used drugs for fish 1
At present, there are many kinds of drugs commonly used in fish culture in the market. As the production of fish medicine is not standardized, some of the products of various manufacturers are not marked with active ingredients, and the trade names of some similar proprietary medicines are not unified with the corresponding chemical names. This is not conducive for us to understand the effective components of drugs, and it also causes some difficulties for the scientific and rational use of drugs. In order to popularize the technology of prevention and control of fish diseases, we will introduce the knowledge of commonly used drugs in fish culture one after another. In order to improve our understanding and understanding of commonly used drugs, we can use drugs scientifically and rationally in production.
- Next
Black fish and domestic fish polyculture
Because of long-term feeding in the main black fish pond, the residue in the pond increases continuously, and the fish excrement also increases continuously, so the pond fertilizer water is faster and easy to age. After some domestic fish are mixed, they can give full play to their mutual benefit, which can not only regulate water quality, but also increase fish yield. One, pond condition raises the pond of black fish alone, can earthen pool already, also can cement pool. The area can be large or small, from a few square meters to 600~2000 square meters, but it is best not to
Related
- On the eggshell is a badge full of pride. British Poultry Egg Market and Consumer observation
- British study: 72% of Britons are willing to buy native eggs raised by insects
- Guidelines for friendly egg production revised the increase of space in chicken sheds can not be forced to change feathers and lay eggs.
- Risk of delay in customs clearance Australia suspends lobster exports to China
- Pig semen-the Vector of virus Transmission (4)
- Pig semen-the Vector of virus Transmission (3)
- Five common causes of difficult control of classical swine fever in clinic and their countermeasures
- Foot-and-mouth disease is the most effective way to prevent it!
- PED is the number one killer of piglets and has to be guarded against in autumn and winter.
- What is "yellow fat pig"? Have you ever heard the pig collector talk about "yellow fat pig"?