The economic benefits of breeding blue crabs are good, how much profit is the profit of one mu of br

Even in coastal areas, this growth rate.

It's also pretty good. Wang, a professor at Xiamen University and executive director of the Crustacean Branch of the Chinese Zoological Society, grabbed a blue crab.

Look closely. The project acceptance panel, composed of well-known experts in the industry, unanimously agreed: "Saline-alkali land.

The technology of raising blue crabs has been explored in place, and the next step can be to try to widely promote it in saline-alkali land. "As we all know, there is no difference in taste and quality between blue crabs farmed in saline land and blue crabs farmed along the coast. Behind these achievements, the team has worked hard to overcome scientific research problems time and time again.

For example, the salinity of blue crabs farmed in coastal areas is mainly between 10 and 25, while the salinity of our breeding in the saline-alkali land of the Yellow River beach is that it will cause discomfort and death of blue crabs. Finally, the team continued to try to dilute the high-quality crab seedlings suitable for saline-alkali land culture through seedling desalination technology. Professor Wang Chunlin, dean of the School of Oceanography and team leader of Ningbo University, said that since then, the team has also explored reasonable polyculture techniques, and selected blue crabs, white shrimps, and tilapia according to different ecological habits.

Polyculture effectively ensures the stability of aquaculture production and the high income of farmers.

Catalyzed by blue crabs, fish and shrimp can be caught in batches earlier. This saline-alkali land used to grow corn and peanuts, and the crops of one acre of land were sold for 1,000 yuan. After the implementation of polyculture, the net profit per mu of land.

It can reach at least 13,000 yuan. The success of blue crab farming in saline-alkali land can be said to kill two birds with one stone. Yanjin County.

Most of the farmland is saline-alkali land, which is difficult to manage. Through this technology, the saline-alkali land will have great utilization value and become a "rich land" for the villagers. However, blue crab farming is mainly distributed in the southeast coast, with an annual breeding capacity of only 160,000 tons, which cannot meet the strong market demand.

Nowadays, the cultivation of saline land brings the possibility of abundant market supply.

The breakthrough of "Haimi" large-scale production technology can effectively save fresh water resources, increase the area of cultivated land, and contribute to environmental protection and sustainable agricultural development.

It is of great strategic significance to solve the problem of food security in China and even in the world. Integrated rice farming is a new ecological composite model of rice planting, aquatic product breeding and waterfowl breeding, which avoids the waste of space and resources caused by a single type of cultivation. The development of integrated planting and breeding of paddy fields can obtain considerable economic and social benefits, and can also bring good ecological benefits.

The integrated cultivation technology of freshwater paddy field is becoming more and more mature, but the integrated cultivation technology of seawater paddy field is rarely reported.

The national aquaculture area exceeds 360,000 mu, and the output exceeds 160,000 tons. In addition, the sales of high-end blue crab products have continued, and the "red paste crab" has exceeded 500 yuan kg (net weight after taking off the rope). Therefore, exploring the "blue crab sea rice" model may be one of the effective ways to increase farmers' income.

This study is based on Taishan City, Guangdong Province in 2019.

The production data of blue crab farmers in Duhu Town systematically analyzed the "blue crab-sea rice.

The technology and benefits of the co-cultivation model and the traditional blue crab-shrimp co-cultivation model were preliminarily explored, in order to provide a theoretical basis for the promotion and improvement of the "blue crab-sea rice" co-cultivation model.

Generally speaking, the profit of an acre is about 7,000 yuan, an acre of crabs, the cost of crab seedlings needs to be invested in about 480 yuan, there are about 600, a crab seedling is about 18 yuan, and the profit sold is about 10,800 yuan, in addition to the cost, the profit is almost 7,020 yuan.

Generally, the profit of one acre of land can be more than 50,000 yuan, it depends on the level of your blue crab, if the blue crab is relatively large, your profit will be very high.

I think it's hard to say the profit, because the level and method of breeding blue crabs are different for everyone, but the profit can generally be controlled at more than 20%, and some people may be higher.

About four or five thousand, the nutritional value of blue crabs is very high, and in the market, there are also high returns, which is very worthy of breeding.

It's probably more than 100,000 yuan, because one acre of land can breed a lot of blue crabs, and the ** of blue crabs is also relatively expensive.

The profit is about 10,000 yuan, because the cost of raising crabs is not particularly high, so the profit is very good.

The profit is not particularly large, only about tens of thousands of yuan, so it is still necessary to invest cautiously.

The profit is generally more than 50%, which can be regarded as a windfall profit, but only if your scale is large enough.

The profit of breeding blue crabs per mu is more than 10,000 yuan, and the profit is very considerable.

The cost of raising crabs per mu is about 480 yuan for crab seedlings, about 1,200 yuan for renting land, about 1,200 yuan for concentrate feed, about 900 yuan for aquatic weeds, snails, crab medicine, water and electricity bills, etc., with a total of about 3,780 yuan. The market price of 600 crabs is about 10,800 yuan, and the profit margin is about 7,020 yuan per mu after removing the cost. However, there will be certain differences in prices across the country, and everyone will take the local standard as the standard.

1. Costs and profits.

1. The cost of input.

If you breed one mu of crabs, the total number of crab seedlings that need to be thrown is similar to 600, and the price of one crab seedling is similar to about yuan, so the cost of crab seedlings that need to be invested is similar to 480 yuan for one mu of crabs. The rental price of one acre of land is similar to about 1,200 yuan. In the whole process of breeding, the cost of concentrate feed for one mu of crabs needs to be promoted is similar to about 1200 yuan, and some aquatic plants and snails need to be promoted in it, and the price of this part is similar to about 700 yuan.

In the whole process of breeding, crab medicine and water and electricity bills are also needed, and the cost of this part is similar to 200 yuan. Cumulatively, the cost of project investment is 3,780 yuan.

2. Profit. In the case of a profit of one mu of crabs, the price of a crab out of the pond is likely to be about 18 yuan, so the market price of 600 is similar to 10,800 yuan, in addition to the cost, its profit is similar to 7,020 yuan. In the case of feeding, there is also a high probability that some small crabs will be bred, and the profit of this part will be ignored.

However, there are likely to be some differences in each region, so in the case of estimates, everyone should take the local price as the standard, and be able to go to the local sales market to inquire more.

Second, the breeding technology of crabs.

1. Reservoir capital construction.

First of all, to do a good job in the basic construction of the reservoir, it is necessary to select a clean area to carry out aquaculture. In the case of breeding, it is best to transplant some aquatic plants in it, which will be more conducive to its growth and development, and also ensure the water body. Before the seedlings are planted, the appropriate quicklime powder is sprinkled into the inside to carry out disinfection and sterilization, and this work is best carried out about 20 days in advance.

Until it is poisonous *** disappears, then release the crab seedlings.

2. Feeding. In the case of crab breeding, we must do a good job of feeding, three times a day to feed is a better way, in the case of feeding, you can choose fish, shrimp and other fresh ingredients to raise.

3. Management methods.

It is necessary to do a good job in its management, increase the scope of inspections, and if it is found that there are some areas where it is wrong, it is necessary to carry out prevention in time. There is also a high chance that crabs will escape, so it is necessary to take precautions to avoid losing yourself.

An acre of land should earn between 20,000 and 30,000, and it should be noted that when we raise crabs, don't raise a lot, each acre has a fixed amount, and everything to eat for Xie every day must also be prepared, be sure to prepare some fresh, and then ventilate them in time. Make more oxygen.

Raising crabs can earn about 10,000 yuan per mu. The profit of raising crabs is still very high, when breeding crabs, you should choose some good water quality, put some algae in the water, do a good job of preventing escape, but also do a good job of shading, do not let the sun shine directly on the crabs, those fertilizers like crabs are very fatty every day, and they will be sold at a good price.

1.The size of the crab fry stocking refers to the size of the seedlings you need to buy when buying crab seedlings, and generally 3-4 grams of crab seedlings will be stocked.

2.The number of crab seedlings stocking, generally one acre of land can be stocked with 600 crab seedlings, if you are 100 acres of land, you need to stockpile 60,000 crab seedlings, if the child is in the yuan, you need to buy 150,000 yuan of crab seedlings alone.

3.Crab fry breeding feed put, the breeding process of feeding feed needs tons, so the cost of feed needs 20,000, the early stage of crab seedlings is relatively small need to put a certain amount of feed, the later stage of crabs can grow up to feed, there is no need to put too much feed.

4.Crab breeding pond rental cost, because you are going to the countryside high aquaculture, not a local need to rent a pond to raise, if it is an economically developed area of pond rent will be in 10,000 yuan a year, if it is not very good in the countryside, generally about 5000 a year, if you encounter difficulties in renting ponds, you can go to the soil flow network to find land, let professionals help you find.

Blue crab, also known as sea blue, is a famous edible crab in China, its meat is tender and nutritious. Su Dongpo also expressed his love for blue crabs in "Blue Crab Products": "Half shells should be rice wine, and two chelates should be boiled in snow."

At present, the market demand for blue crabs is increasing, and the aquaculture industry is developing faster and faster. So when is the best time for blue crabs to breed? What is a breeding point?

Glance. When is the best time to breed > blue crabs? What is a breeding point? When is the best time for blue crabs to breed?

Although crabs can be raised all year round, the season to eat crabs is summer and autumn, so it is best to raise crabs around March in spring. However, the specific must also be determined by factors such as the reproduction conditions of the individual and the climatic conditions in which it is located. When is the best time to breed > blue crabs?

What is a breeding point? What are the breeding points of blue crabs?

Pond selection and construction of ponds should be built in the high tide area or high tide area of the inner bay with good seawater exchange, calm wind and waves, and no pollution sources, and the bottom surface of the sediment is coastal and estuarine area, preferably with fresh water**. It also requires a pH of - an optimal salinity of 8 - 26 and dissolved oxygen of 5 mg l. Escape defenses and other pond equipment must also be prepared.

There are two kinds of crab seedlings to choose excellent seeds: natural fishing and artificial cultivation, and natural seedlings are preferred. Quality requirements: the shell is hard, the color is green, the specifications are neat, the accessories are complete, there is no damage, the response is sensitive, and the vitality is strong.

Sowing and stocking seedlings with 5 g m3 of potassium permanganate solution for 15 min or 15 to 30 min in pure fresh water to kill surface bacteria. The stocking density is generally 4-6 birds per square meter. During the stocking period, a "temporary feeding area" is set up in the pool.

The length of time for temporary rearing depends on the water temperature and the growth conditions in the tank. The temporary area accounts for about 1 5 of the inventory area. Feed feeding is mainly based on freshwater snails, oysters, blue clams and other shellfish as the staple food, supplemented by compound feed.

On the one hand, it can reduce the residual bait, which is conducive to maintaining the pool water environment; On the other hand, shell bait is close to the natural bait of blue crabs, which is very beneficial to improve the breeding quality of blue crabs, especially feeding freshwater spiral lions and compound feed, which can reduce the spread of marine diseases.

The breeding cycle of blue crabs is about one and a half years. This animal introduces crab seedlings in the spring, raises crabs in December, and then sells them in the middle of the second year.

The breeding cycle of blue crabs is one month, and after a month, the blue crabs can be sold, and then you can start planting new blue crabs.

If crab seedlings are introduced in the spring, they can be raised around December, and they can be marketed in the autumn of the second year, and the cycle is about one year.

Crab Farming Investment Details:

1. Stocking specifications: 3 4 grams of tail grinding vertical river crab seedlings;

2. Stocking quantity: 600 acres; Molded.

3. Breeding area: 20 acres;

Fourth, the cost of feed: a total of tons of feed are fed in the breeding process, a total of 20,000;

Fifth, the cost of seedlings: 10,000;

6. Crab medicine and electricity: 10,000;

7. Aquatic plants and snails: 10,000;

8. Pond rent: 10,000;

9. Total cost: 10,000 yuan.

Crab farming profits:

1. Crab specifications: divided into three main specifications, respectively 20 catties of mu, 60 catties of mu, 110 catties of mu;

2. Crab sales: 20 catties of mu, the average selling price of 65 yuan, sales of 10,000 yuan, 60 catties of mu, the average selling price of 30 yuan, sales of 10,000 catties, 110 catties of mu, the average selling price of 51, sales of 10,000, a total of 10,000;

Three: actual profit: 100,000.

Overview of the benefits of crab farming:

The overall situation of crab breeding is good, with an average yield of more than 190 catties per mu, two female crabs and more than two male crabs, with total sales of 10,000 yuan and a profit of 5,000 yuan per mu.

Crab (pángxiè): Animalia, phylum Arthropods, Crustacean subphylum, Molluscs, True Molluscs, Decapodium, Ventral Embryo, Brachycda. It is a crustacean whose body is protected by a hard shell and breathes by its gills.

Taxonomicly, it is the same animal as shrimp, lobster, and hermit crab.

The vast majority of species of crabs live in the sea or near the sea, but some inhabit freshwater or land. They rely on the mother crab to give birth to baby crabs, and each time the mother crab lays a large number of eggs, the number of which can reach more than millions. Crabs rely on the geomagnetic field to determine direction.

The number of genetic materials of such organisms is complex and highly varied, often as many as more than 100 pairs. Common crabs include hairy crabs (river crabs, hairy crabs, clear water crabs), pike crabs, etc. China's crab resources are very abundant, among which the hairy crabs produced by Gucheng Lake, Taihu Lake, Gaoyou Lake, Yangcheng Lake, Xilou Hairy Crab, Xinghua Hairy Crab and Hongze Lake Hairy Crab in the lower reaches of the Yangtze River are the top quality.