Crabs have high nutritional value, and many people are breeding, so what problems need to be paid at

It is necessary to pay attention to the variety, choose to pay attention to the situation of the pond, choose the right feed for feeding, be sure to pay attention to the problem of density, pay attention to the environment and temperature.

We must pay attention to the breeding environment, we need to treat the pond in advance, pay attention to the disinfection work, pay attention to the time of putting crabs, and choose the right crab seedlings.

1.Regularly go to the farm to observe If you want to raise crabs, the first point is to check the farm regularly, observe their survival, and whether the water quality has changed, so that you can take measures to solve it in time. This requires the farmer to be diligent enough to observe at least three times a day to see what will happen in the morning, noon and evening.

2.Regular disinfection management Bleaching powder can be used for disinfection, which many people who breed crabs do not notice, which is actually very critical, especially in summer, when the weather is very hot, and it is easy to grow bacteria in the clear water.

Crabs are highly nutritious, how to raise them? In order to improve the survival rate of juvenile crabs and increase economic benefits, it is necessary to breed buckle crabs first. After meeting the standard for commercial crabs, most people use plastic greenhouses for temporary propagation.

The water source is sufficient, the drainage is convenient, and there is no leakage. If conditions allow, soft crabs can reproduce. In order to improve the survival rate of juvenile crabs and increase economic benefits, soft crab breeding ranks first.

In order to achieve the purpose of commercial crab farming, most hairy crabs adopt temporary plastic greenhouse breeding technology.

It is best to breed crab varieties by yourself, because this high-quality food can promote the absorption and utilization of nutrients by crabs, reduce the pollution of food to water, and reduce the content of harmful substances in the water. If crabs are kept at the same time as other aquatic products, they must be isolated, as crabs are a more ferocious aquatic product. If farmed with other aquatic products, the natural production of Rio crabs in other aquatic products may increase, depending mainly on the number of aquatic plants and benthic organisms (bait organisms) in the waters.

The cultivation of aquatic plants is an indispensable technical measure in the aquaculture process. We have to breed crabs first. In order to achieve commercial crabs, FIM is currently using the temporary farming technology of the plastic greenhouse effect.

Choose good quality water and an adequate source of water; Note: It is easy to drain and does not leak. Feed and plant food should be combined, such as morning feed and cereals, mussels, farmed meat crabs in the afternoon should be carnivorous bait, supplemented by plant bait.

Commonly used baits are red-fleshed blue clams and seeking muscles. The protein content is high, and the essential amino acids are complete, so the nutritional value is greater, which is important for the growth of meat crabs, snails and silkworm larvae. Crab is not only delicious, but also has high nutritional value and ** effect.

Therefore, farmed crabs are also cold and salty crabs, which belong to the liver and stomach meridians. Anti-tuberculosis crabs also have anti-tuberculosis effects. Eating crabs is very beneficial for tuberculosis.

The eating and detoxification of crabs has the effects of clearing heat and detoxifying, regulating bone marrow, activating muscles and veins, dredging meridians, benefiting limbs and joints, sustaining injury, nourishing the liver and filling the stomach. Injury, jaundice.

270 meters 2 nursery, artificially allocate seawater, select the authentic Yangtze River Chinese mitten crab with a specification of about 175 grams, give birth to big-eyed larvae, raise 2 instar crabs, nourish them in the pond, ensure the purity of crab seedlings, make crab seedlings adapt to the local ecological environment as soon as possible, prolong the crab growth period, and greatly improve the survival rate of crabs. The low cost and high results have laid a solid foundation for the success of farming.

According to the feeding habits of crabs, as omnivorous, the plant and animal feed ingredients required for growth are formulated at full price, and as long as they are fed animal feed such as small fish, the size of crabs is small. Reasonable amount of bait and feeding time, the use of four wells to determine the amount of bait, the amount of bait at different growth stages is also different, the amount of bait per day should be increased or decreased according to the water temperature of the day and the intake of the previous day, feed the coast and shallow water area on time, and the feeding time should be set at the time of each night.

Do a good job in disease prevention, take the principle of prevention first, starting from June during the breeding period, 1 milliliter of bleaching powder pond per month, per kilogram of foomycin, 3 days of ** process, internal and external drug prevention basically avoid crab disease death, greatly improve the survival rate and rate. At present, the level of seed quality varies in many places. Because, if the quality is relatively poor, it will not take long for the sugar to start to cause **, then after the temperature rises and the giant sugar bacteria multiply, the ** amount may become larger and larger, so the yield is not guaranteed at all.

Therefore, when buying crab seedlings, it is necessary to understand the breeding situation of crab seedlings in detail, and when placing seedlings, it is necessary to soak the seedlings with nano silver. There are many sterilization and disinfection products on the market, nano silver is a green and safe sterilization and disinfection product, no need to explain, and green safety, you can use it with confidence! This is relatively rare, but it does not rule out the possibility.

It's normal to put a sapling that someone has in this pond, but putting it in another pond will cause a lot. This may be because the green sugar is not cleared, and the drug residue will lead to crab seedling poisoning, physical deterioration, hypoxia, and ** situation.

Of course, planting fruit trees can be applied with plant ash, because plant ash fertilizer is the ash after plant burning, and the mineral elements contained in general plants are almost all contained in plant ash, not only that, but the application of plant ash can not only prevent and control some common diseases and insect pests on fruit trees

When building a pond, be sure to make the bottom of the pond smoother, so that the crabs can move freely, and you can also put some aquatic plants in the pond, so that the crabs will adapt to their living environment, so as to increase the yield.

In the breeding process can not be separated from aquatic weeds, we should properly control the number of aquatic weeds according to weather changes, aquatic weeds can play a role in cooling in summer, replenish oxygen, prevent water quality aging, and the number of aquatic weeds should be reduced in other seasons, so as to be conducive to the growth of crabs. Secondly, the requirements for breeding crabs on the pond are also very high, and they need to be irrigated on time for disinfection, so that the crabs can grow healthily, and if you want to ensure the quality, you must increase the nutrient ratio in the bait. When choosing varieties, it is necessary to choose varieties with strong adaptability.

If you don't know anything about crab farming, you can try it. How do you know if you don't try? The first is love, love to do things is relatively easy, for crab farming, after decades of development, the breeding technology has been relatively perfect, and the breeding process is relatively easy.

For beginners, the area can not be made too large, the crab yield is not high, and at the same time, the ** of different specifications will be very different, and the ** of a specification is very different, and the high-specification crabs can be sold at a good price. Breeding starts from seedlings, generally speaking, for the breeding of crabs, the main seedlings come from Shanghai, Jiangsu, Anhui and other provinces and cities, for the selection of seedlings, this is very deep, it is best to find people who know how to control together.

The breeding process is basically according to the breeding procedures, basically the cost of one mu of crabs will be more than 5,500 yuan, the cost is still a bit high, and the novice is still leisurely. How to make the area bigger will be very stressful, and the financial pressure will be very great. Pay attention to escape, as soon as the autumn wind blows, the crab's feet will itch, and the crab will run very fast, and if you don't do a good job of escaping, the crab will be crushed to death.

No matter what kind of breeding, it is difficult at the beginning, visit some successful people, take some real scriptures, it should be said that raising crabs is not very difficult. Success needs precipitation, breeding needs to slowly accumulate experience, I hope everyone can go better and better on the road of crab farming. In order to improve the survival rate of juvenile crabs and increase economic benefits, cotton crabs must be cultivated first.

In order to meet the standards of commercial crabs, most people are temporarily raised in plastic greenhouses. Choose a pond with good water quality, sufficient water, convenient drainage, no leakage, no seepage, and less silt, the area should not be too large, the depth should not exceed meters, the pond shape is good, the sun is sufficient, and the construction of greenhouses can refer to the construction method of agricultural vegetable greenhouses. 15-20 days before stocking crab seedlings, disinfect with quicklime, cultivate basic bait, transplant aquatic plants (must be strictly disinfected), and establish the necessary anti-escape measures.

After the crab fry enter the pond, the water should be shallow to increase the water temperature and promote the growth of algae and aquatic plants in the water. Feed soybean milk, fish, shrimp, etc. 2-3 times a day, and pay attention to the weather, water quality, and crab seedling growth at any time, depending on the number of bait organisms. At the same time, some plant bait should be added during the growth of young crabs, such as duckweed and other high-quality aquatic plants.

In the daily management, we should pay attention to water quality regulation, master the water quality and cooling, change the water frequently, change the water less, do not cause drastic changes in water temperature and water level, and the purpose of crab farming can be achieved in about 2 months.

There needs to be aquatic plants, the water quality requirements for crab farming are very high, the temperature must be adjusted when the weather is hot, and oxygen generators and fresh fish fry should be used, which are all places to pay attention to.

It is necessary to pay attention to the diet of crabs, the oxygen in the water of breeding crabs, observe the physical condition of crabs, pay attention to the species of crabs, and the temperature in the water.

The temperature of the water in which the crabs are farmed, how deep the water should be, the environment in which the crabs are fed, the oxygen in the water.

Escape prevention. Blue crabs have a high chance of escaping, and their own activity and burrowing level are extremely high, and if the perimeter protection is not done well, they will run very fast. The cleanliness of the water source, the blue crab is very particular about the water source, as long as the water quality is relatively poor, these blue crabs do not grow big, and the heavy ones die directly.

Oxygen supply. The blue crab itself basically survives in the water, rarely goes ashore, so the oxygen in the water is very important, if the long-term oxygen is insufficient, it will cause the blue crab to be reluctant to return to the water, so that the nutrition seriously affects the normal growth of the blue crab, and the breeding effect is not ideal.

1. Daily management needs to pay attention to the aspects, that is, to carry out regular inspections, compared to many breeding farmers should also know that crabs are more like to run away animals, and their feeding and living environment are very important for their growth, so every morning and evening need to be inspected, not only to check the changes in the water quality in the farm, to see if to change the water quality, and to observe their growth, and whether there are some abnormalities, Prevent them from escaping. 2. Provide a good water source, the general water quality is good to determine their growth rate and whether they can raise delicious blue crabs, the clean and clear water quality in the farm has always needed to be maintained, which is a very critical point, and in the process of blue crab breeding there will be many delays, after several shelling pouring can gradually become adults, and in the process of shelling, to ensure the cleanliness and hygiene of the water source.

The cleanliness of the water source.

Blue crabs are very particular about the water source, as long as the water quality is relatively poor, these blue crabs do not grow much, and the heavy ones die directly. If you want your own blue crabs to be more competitive in the market, the natural pollution-free water source naturally needs to work harder. Blue crabs are very fragile when they shed their shells, and if the water source is not good, it will lead to the death of batches, which is also one of the reasons for the mass death of common blue crabs, and the importance of water source can be imagined.

The choice of crab pond is similar to the growth environment of fish pond, after all, it is a product of water, but the difference is that the construction of crab pond requires setting up an open space in the pond, and some aquatic plants can be planted on the open space, because crabs need to shed their shells during the growth process; And it can have a shallow water environment, allowing it to survive for a short time. Plastic nets are also set up around the pond to prevent crabs from escaping during their growth, causing losses.

The stocking time and specifications of crabs are generally controlled according to the size and quantity of crabs within the pond, and the size of the crabs with the drop is as large as possible, because the size of the crabs may cause great differences in the growth of the back, resulting in a certain amount of confusion, and when the crabs are caught, the differences in selection are caused; It may also be ignored because of the small size of the individual, which will have a certain impact. For crab species, the stocking time is generally around late April, because there is enough time for the crabs to grow, and the temperature is more suitable. Crab Feeding and Requirements Crabs also need to be fed because there is not enough in the water for the crabs to grow.

The requirements for feed should also be coordinated, the variety should be rich and fresh.

It is also necessary to cultivate the conditioned reflex of crabs, feed them within a certain period of time, and cultivate the habits of crabs. The feed should be fed according to the change in temperature and the growth of the crabs. At the beginning of stocking, the pond needs to be fed 3 or 4 times a day.

After breeding for more than a month, the feed should be put once in the morning and evening, and the feed should be put in the ratio of 3:7 in the morning and evening. The day-to-day management of crabs is the same as that of other fish.

During the growth of crabs, it is necessary to make frequent inspections to observe the changes in the water quality of the pond and the growth of crabs. Even if a crab is found to behave abnormally, it is important to control the disease and regularly inject fresh water into the water to ensure that the water body is active and that there is enough oxygen in the water to meet the crab's needs.

At the same time, keep an eye on the perimeter of the Seine to see if there are any loopholes for the crabs to escape. In this process, a certain amount of quicklime is added to help the crab shed its shell.