How should aquaculture farmers prevent the rainy weather in high temperatures?

1. Regularly change the bottom

Regularly use the Taiyuan single potassium commonly used bottom modification series to modify the bottom, detoxify and repair the microecology, and at the same time supplement oxygen with calcium oxygen granules made of calcium peroxide. The product undergoes a chain reaction in water, which can directly degrade the bottom macromolecular organic matter into short-chain small molecule organic matter, and improve the efficiency of the bottom microbial decomposition of organic matter; At the same time, it can also maintain a high redox potential at the bottom, promote the phase balance of bacteria at the bottom, and thus promote the decomposition of organic matter at the bottom. Regular use can keep the bottom of the hardened and blackened bottom in a loose and healthy state for a long time, and realize the healthy breeding mode with good bottom and good water.

If necessary, it can be combined with microecological preparations such as Taiyuan dredging, algae-promoting bacteria, Shuidejin microecological restoration culture agent, lactic acid bacteria and other microecological preparations to regulate water quality and regulate bacterial phase and algal phase. In addition, in the process of cultivation, chlorine preparations and quaternary phosphate salts and other secondary hazard products should be used as little or no as possible.

2. Regulate water quality

In rainy weather, attention should be paid to oxygenation, and flexible use of aerators or dry sprinkling of calcium peroxide and sodium percarbonate slow-release granules for oxygenation (avoid using sodium percarbonate when the pH is high or the ammonia nitrogen index is high). After the rain, in the case of ensuring that the dissolved oxygen is not less than 4 5 milligrams of liters: it is recommended to use 25% Taiyuan monopotassium water purification powder (300-500 grams of mu·m) to degrade the harmful pollution sources in the water and increase the redox potential of the water body.

Combined with the use of Taiyuan single potassium antibacterial and detoxification effervescent tablets (150-200 grams of mu·m) to inhibit the growth and reproduction of harmful microorganisms at the bottom of the pond, degrade various toxic substances such as algal poison, ammonia nitrogen, nitrite, etc., and provide beneficial trace elements for the growth and reproduction of beneficial bacteria.

On the second day, the Taiyuan dredging (150 grams of mu·rice, directly splashed with 500 grams of amino acid granulated water) composed of various beneficial bacteria was applied to supplement the beneficial bacterial phase of the bottom sediment, and then 80 grams of lactic acid bacteria were activated with 500 grams of brown sugar for at least 12 hours and then splashed to further promote the growth and reproduction of beneficial algae and regulate the algae phase. If you use Taiyuan 2018 new environmental protection product - Taishuang Water Ecological Restoration Bag in the early stage, you can maintain the microecological balance of the water body for a long time, better stabilize the water, and reduce the stress response of aquatic animals caused by sudden changes in the environment.

3. Feed at the right time

In the rainy season, the feed is susceptible to moisture and mildew, a stockpiling should not be too much, high-quality feed is the key to ensure that aquatic animals maintain a healthy physique, if necessary, you can also take immune enhancers internally, improve the immunity and disease resistance of breeding animals. During the rainy season, it should be flexibly grasped according to the weather, water quality changes and actual feeding conditions, and the specific methods are as follows: continuous sunny to cloudy weather, you can feed according to the conventional breeding method.

Continuous cloudy to cloudy weather, regular feeding, feeding according to the usual feeding amount. In continuous cloudy to light rain weather, it is recommended to sprinkle calcium and oxygen granules 30 minutes before feeding, and then feed regularly, and the feeding amount should be checked for no bait left the next day.

On continuous rainy days, first evenly sprinkle the particles that can slowly increase oxygen, and then take corresponding measures according to the rainfall. If it is raining to cloudy weather, wait until the rain stops. If the water body is turbid after rain, it is advisable to purify the water and detoxify it before feeding, and the feeding amount should be checked the next day to check that there is no bait left.

It is necessary to adjust the water quality, with the pH value of the water and the feeding time, it is necessary to change the bottom regularly, so that the breeding can be better.

It is necessary to ensure the water quality, but also to use the aerator appropriately, and you can choose high-quality feed. It can be replaced with new water appropriately.

What are the hazards and prevention of rainstorm temperature on aquatic product breeding, first of all, we must do a good job in flood control, structural reinforcement of pond embankments, do a good job in the drainage system, clean up debris, and do not have to block the drainage system, the cage fish culture structure reinforces the rope and net, and the cage is transferred to the port near the port as much as possible. Do a good job in insect disease control, after the rainstorm, seafood loves to get sick, especially fish species, which are very easy to raw fish subacute gill rot, gill mildew, hemorrhagic disease, etc., immediately disinfect and sterilize, you can use edible salt, and sterilization and disinfectant!

Continuous rainy weather will cause insufficient sunlight, zooplankton will die due to the large change of the water body, which will cause the reduction of photosynthesis, the oxygen content in the water will be greatly reduced, and many water acoustic animals in the water will consume a lot of oxygen, which will lead to the death of many river shrimp. River shrimp will stress the fishing pond in heavy rain, which will lose a lot of kinetic energy, resulting in low immunity, and the growth of bacteria and viruses in the water and itself, which will cause the outbreak of infectious diseases.

The impact of the rainstorm itself and its frightening of the river shrimp will lead to a lot of panic and impact of the microorganisms, which will cause damage to the microorganisms and the human body, and will produce a high incidence of diseases. It will lead to the malignant transformation of the water body, and the amount of dissolved oxygen in the water of the fishing pond will be reduced in the rainstorm weather, resulting in the growth of a large number of germs, and the harm to the water body For the little frog planted by everyone, in fact, there will be a variety of diseases left after the rainstorm. One of the first problems that arises is the problem of damage.

Whether it is in the tadpole stage or the seedling stage, <>

If it is a heavy rainstorm, then the product, which has already taken shape, has already risen three or four taels and will be on sale The equipment will also be damaged in a different situation. In order to solve this kind of disease, it still requires a very careful and long period of management to repair, so the symptoms left after the rainstorm are actually obvious. Therefore, based on this situation, it seems that it is necessary not only to have various rainstorms, but also to be sick.

The impact of heavy rain on aquaculture is very large, and certain protective measures should be taken in advance to avoid this situation, and a film should be wrapped on it.

The impact is still very large; It is necessary to minimize the amount of feeding, reduce the oxygen consumption of pond organic matter, and if different hazards occur, it is necessary to remedy it in time to prevent poisoning.

Rainstorm weather will cause a particularly large difference in water temperature, water quality will also change, so that the biological immunity will decrease, easy to have viral infection, we must do a good job of flood control, strengthen the pond embankment, do a good job of drainage, clean up the debris, strengthen the rope, we must do a good job of preventing diseases and insects, after the rainstorm, aquatic products are easy to get sick, especially fish, to be disinfected in time.

Oxygen is the basis of aquatic animal life activities, affecting the body's metabolism, growth, development, reproduction, immunity, disease resistance and other physiological activities, affecting aquatic animal intake and bait utilization. Most aquatic animals mainly obtain oxygen through waters, and the amount of dissolved oxygen in waters affects the difficulty of obtaining oxygen and whether various life activities can be carried out smoothly. The dissolution of oxygen in the water body is negatively related to the water temperature, so the higher the water temperature in the high temperature season, the lower the solubility of oxygen in the corresponding water body.

At the same time, in the appropriate temperature range, the higher the water temperature, the higher the oxygen consumption rate of each aquatic organism. Affected by the above two factors, the aquaculture waters are prone to low dissolved oxygen and hypoxia.

The high temperature season is also a fast growing season for aquatic animals. In order to obtain faster growth and greater yield, farmers increase the frequency and input of bait, and aquatic animals ingest more feed substances, which may lead to the growth and development of fish bodies on a regular basis, and the fish body itself may also appear fatty liver, diabetes, obesity and other "wealth diseases". The digestive system is overloaded, the operation is overloaded, generally speaking, the protein content of aquatic animals accounts for about 16% 18% of the total wetness, and the feed protein content of feeding is generally up to 25% 45%, under the common bait coefficient of the current breeding industry, only part of the effective protein of the feed is converted into body protein, and the rest of the protein is released into the water body through the bait, carcass and feces.

It is one of the most important fish diseases affecting freshwater fish aquaculture and production in China, mainly harming grass carp fingerlings and the clinical symptoms of hemorrhagic disease of one-year-old herring and grass carp, namely red muscle type, red fin type and red intestine type. Grass carp and herring with grass carp hemorrhagic disease mainly show uniform red intestinal symptoms, and some diseased fish have red fins and red gill covers, and occasionally red muscle symptoms. Dissecting the sick grass carp and herring, it can be seen that the intestines are evenly red, and the fat attached to the intestines also bleeds, and the congestion turns red.

After the intestine is cut, you can see that the lining of the intestine has also turned red. However, most of the body surface of the affected fish is basically unusual. It is an infectious disease with high morbidity, infection and mortality caused by the herpes virus.

The virus only infects carp and koi, and even fry, juveniles, and idioms, with a mortality rate of 80 to 100 percent. The water temperature is easy at around 25**.

Shrimp leukoplakia syndrome is caused by vitiligo virus infection. Sick shrimp generally stop ingesting, sluggish, weak, unable to jump, wander on the surface of the water or lie on the edge of the pond without moving, and die. It can harm freshwater fish of all ages.

In particular, bellfish is the most harmful and can be endemic throughout the country. Among them, Guangdong, Guangxi, and Fujian are the most serious. A large number of many kinds of tea cockroaches parasitize on the body of the fish ** or gill diseases, and there are about 10 kinds of pathogens that cause this disease, mainly the eye-catching tea cockroach, coarse spiny seed wheel worm, etc.

Tea cockroaches often parasitize on the body surface and gills of fish, mainly on the gills of fish. Symptoms of diseased fish are symptoms of growing old or constantly traveling, and the mouth and gills of the fish are difficult to ingest due to damage, and the breath is short.

In summer, the temperature of the pond is high, the environment in the pond is relatively closed, and various microorganisms and bacteria in the water will grow vigorously, at this time, aquatic animals also enter the rapid growth period, ingest a large amount of food every day, so the probability of suffering from various diseases is greatly increased, and because of the high temperature, some mistakes in the feeding will also produce a large number of harmful substances such as ammonia nitrogen and nitrite in the water quality, so that aquatic animals die.

Some bugs should be prevented, and some mosquitoes should be prevented, these pests and diseases are very powerful and will affect the yield.

Aquaculture diseases mainly include: bacterial sepsis, gill rot, enteritis is the most typical, covering a wide range; In addition, parasitic diseases (mainly wheel worms, ring worms, tertiary insects, anchor head catfish, etc.) are also becoming more and more serious. All of this should be prevented.

Bad water, must be prevented, I often test the quality of my water, pay attention to the oxygen sufficient, but also regular disinfection, I use Zhongbang iodine to prevent.

Pay attention to monitoring water quality changes, regularly monitor water temperature, pH, dissolved oxygen, ammonia nitrogen, nitrite and other water quality indicators of the aquaculture water body every week, and timely regulate and control if abnormalities are found. "Youjiling" has multiple effects such as complexing toxins, residual chlorine, pesticide residues, enhancing anti-stress ability, and stabilizing algae phase, and has long become a must-have for many farmers to regulate water quality

The water depth of the adult fish pond is generally controlled at 2m, and the water depth of the fingerling pond is generally controlled at 2m; The optimal water temperature for fish growth is 26 28, and when the water temperature is too high, new water can be added to adjust it. It is best to add water around 14:00 on a sunny day, and do not add water in the evening to avoid causing fish to float.

When feeding feed, adhere to the "four certain" principles of timing, positioning, quality and quantification, and flexibly grasp the feeding amount according to the weather, water quality and fish body activity and feeding, so as to prevent feed waste and prevent water quality deterioration. Add legal feed additives to the feed to enhance the disease resistance and stress resistance of farmed animals"Staling" has the effect of inducing food and promoting growth, protecting the liver and gallbladder and improving intestinal immunity, adding Staling to the feed can not only promote the healthy growth of breeding varieties, but also reduce the cost of breeding.

Pay close attention to the weather conditions, take measures in advance to prevent embankment bursts, broken nets, escapes, etc., which may be caused by typhoons and heavy rains, and pay attention to the safety of personnel. Patrol the pond frequently, and insist on patrolling the pond three times a day in the morning, noon and evening. Maintain a reasonable density in the breeding pond and promote the growth of breeding organisms.

In the production process, once it is found that there are abnormal phenomena such as large-scale disease and large number of deaths of breeding species, it is necessary to report to the local aquatic technology promotion (aquatic animal disease prevention and control) institutions in a timely manner, and take corresponding measures to prevent the spread of the disease.

In order to prevent and reduce the probability of aquaculture disease, first increase the water level within a reasonable range, maintain the stability of the water quality environment, and secondly, reduce the arrangement of breeding density within a reasonable range.

There are two main aspects of harm in the high temperature season, one is water quality, and the other is breeding density. In order to prevent and reduce the probability of aquaculture diseases, one is to raise the water level within a reasonable range, process and maintain water quality and environmental stability, and two to reduce the water level within a reasonable range. Stocking density arrangement.

1.The main reason for the increase in fish diseases during the high temperature season.

2.Water quality problems The amount of food feeding increases, and the fish excrement will also increase, and the fish excrement will exacerbate the organic matter pollution, resulting in a lack of oxygen in the water body, poor water quality, and a growing environment that cannot ensure the health of the fish.

3.Aquaculture density The density of pond aquaculture is too large, so that the water quality can not be effectively controlled, which makes the fish sick and the fish die.

4.Precautions and precautions for aquaculture in high temperature season.

5.Reasonably raise the water level The high water level needs to be raised in the high temperature season, which can not only provide a suitable water temperature for aquatic animals, but also keep the water quality relatively stable.