(1) Fish disease prevention and control, aquaculture water intake and drainage should be independent. Pond water to raise independent, drainage pipeline, namely each ponds can independently from the irrigation channel into the water, and can independently to the water into the drain, and not from the adjacent pond water or water into the adjacent to the pond.
(2) Clear and disinfect the pond
Remove excessive silt from the bottom of the pool, or turn the bottom of the pool and freeze it after draining the water.
Silt is not only a breeding and storage place for pathogens, but also the organic components in the sludge will consume a large amount of dissolved oxygen when decomposing, which is easy to cause pond in summer and autumn. In the case of anoxia, a large number of organic acids, ammonia, hydrogen sulfide, nitrite and so on are produced.
(3) Seedlings must be sterilized by medicinal bath before stocking.
The prevention of fish diseases must start from the control and elimination of pathogens. Before purchasing and stocking, the fish seedlings should be immersed in medicine and disinfected to cut off the way for pathogens to enter the pond with the seedlings.
(4) Daily management attaches importance to disease prevention technology.
Adhere to the quality, quantitative, positioning, timing of the "four" feeding technology, which can not be mechanically understood as fixed, but according to the change of season, climate, growth and water environment changes, appropriate adjustment, to ensure that fish can eat, eat well, and not waste. So as not to pollute the water quality: in terms of quality, it should be comprehensive in nutrition, fresh, not deteriorating, not containing toxic ingredients, and good stability in the water.Pathogens tend to stick in the feed into the pond, so feed must be clean, fresh, preferably after disinfection. The residue of the food farm bait often becomes the breeding site of the pathogen, so it is necessary to sterilize the food farm regularly to kill the pathogen: the disease prone season is regular.
The whole pond should be disinfected by splashing drugs or feeding drug baits regularly to control the breeding and reproduction of pathogens, so as to achieve the effect of disease prevention. In daily management, it is necessary to patrol the pond, remove pollution and harm frequently, pay attention to water quality, pay attention to the eating situation and dynamic of fish, find out the situation, analyze the reasons in time and solve it and keep track of it.