The "king" of crayfish is here!Make Jiangsu crayfish industry more "red fire"

This year's high temperature and drought, the hairy crabs were "thin" on the hot search. As the main characteristic aquatic products in Jiangsu, the breeding area was second only to river crabs. The crayfish industry has aroused attention.

"Cannon" crayfish has more than two or two, and has entered the breeding stage

In recent years, crayfish have emerged and are loved by consumers. "Jiangsu crayfish has a variety of breeding area of ​​about 3.3 million mu, an output of 270,000 tons, and an output value of 11 billion yuan. Among them, the comprehensive planting area of ​​rice and shrimp is the largest, about 2.2 million mu, 800,000 acres of crab pond mixed nursing crayfish, and the pond ponds, and the pond ponds. About 200,000 acres of shrimp, about 100,000 acres of crayfish in the pond. "Zhang Chaohui, director of the Jiangsu Fisheries Technology Promotion Center, introduced.

How much can a crayfish be kept? The reporter chose Yutangkou at the Pukou base of the Danshui Research Institute of Jiangsu Province and saw the top "artillery head" crayfish in the breeding. "Two new products of the two ponds in the base, the crayfish cultivated by the cultivation of the crayfish is more than one or two or five, accounting for 60 % and 70 %. "Du Danggao, the base director, is very proud.

Xu Zhiqiang is a leader in the team of crayfish breeding experts in Jiangsu Province. He said that every Tangkou of Pukou Base found more than two or two "artillery heads". These "artillery heads" are still growing. The "seed player" of the specifications of crayfish, the crayfish mother shrimp is normal 200 to 500, and the environment is good for the fall of the egg in the fall, and it can produce 800 tails. At present, the "seed player" of crayfish has entered the breeding stage.

"These crayfish are very energetic." Xu Zhiqiang introduced that the size of the public shrimp and mother shrimp was obvious. In the breeding season, the two chews of the public shrimp are significantly larger. Although there are meat in the two chelars, the shell is very hard. Because the two chews of the public shrimp occupy a large, high -quality lobster shop, the mother shrimp will be preferred, and the taste will be better.

"Our breeding route is to cultivate two smaller public shrimp. The monomer -oriented public shrimp is also direction." Xu Zhiqiang's goal of choosing crayfish is to grow fast, excellent quality, and good anti -reverse performance. He hoped that within two or three years, the new high -quality crayfish products selected by the team gradually promoted to the crayfish industry, allowing farmers to increase their income and allow consumers to eat higher quality crayfish.

The crayfish is not hot "thin", "advocate more raising some crayfish"

"Crayfish was listed in June and July, and escaped the extreme weather of 'steaming and boiled." Lin Hai, director of Pukou Base, told reporters. Crayfish likes cleanliness, tolerance for sewage, high requirements for water quality, and more sensitive to crabs. Crayfish is basically a "two wife", and there are also "polygamy".

According to reports, compared to the affected situation of crabs, crayfish is limited due to high temperature and drought. The main fishing season of crayfish is before the rice harvest in June and a large number of seedlings in March and April. There is no high temperature from April to June. Although the co -co -co -operating of rice and shrimp after June was affected, the proportion of the entire industry chain in the crayfish was small. Crashings are not hot "thin" because a large number of crayfish have been listed before high temperature.

What is the future industry scale of crayfish? "Corruptions have escaped this year, which is determined by biological characteristics. It is not afraid of such high temperatures next year. Reduce the risk of breeding. We advocate appropriately expanding the breeding varieties. After the variety is more, the breeding benefits are still very advantageous. "This year, the river crabs were severely affected. Xu Zhiqiang believed that he could put crayfish in and do mixing shrimp and crabs, which did not affect the output of river crabs. Green shrimp, river crabs, and aquatic products can also be used in fish. Trust of turtles are currently relatively prospective. Paota ducks can also be mixed with crayfish. He analyzed that at present, Jiangsu consumers have to eat more than 300,000 tons of crayfish a year, with a gap of nearly 100,000 tons. A large number of Anhui and Hubei crayfish need to be purchased. The market gap is very large and the prospects are very good. Compared with other varieties of suits and mixes, crayfish are the most advantageous varieties. The growth rate of crayfish grows very fast. It can be described as the wind of the wind. The crayfish has just been breed. It is only half centimeters long. It takes 40 days from seedlings to listing breeding. It grows very fast. It is similar to white feathers and chickens.

According to statistics, the benefits of river crabs this year are affected by high temperature and drought, and crayfish have good benefits. This crayfish scientific research team and farmers in the Jintan and Xiahe River are jointly explored. The best breeding pond mouth, the benefits of light crayfish per mu reached more than 13,000 yuan, and the benefits were very considerable. Jiangsu pond farming is very distinctive, with rice and shrimp, Xinghua model is a mixed nursing of shrimp and crabs, and there are cricket pond farming in Jinhu. Crusades breeding crayfish, put shrimp seedlings in the right time and space, so that the crayfish The impact on the tadpoles is minimized. There is such a large lotus leaf in the pond, which uses the lotus leaf in the summer to reduce the high temperature effect, and the crayfish grows quickly.

The younger the crayfish grows smaller and smaller? How to break through the bottleneck of the breeding industry?

"The crayfish team is increasing the improvement of varieties, and the advantages of various breeding models of crayfish suits and hybrids are used. The crayfish we cultivate is high, good meat quality, very full, and the meat is more Q bombs." Xu Zhiqiang introduced.

Jiangsu has the earliest research on the crayfish industry in the country. It has been around the crayfish industry chain. Since 2013, when the characteristics of the germplasm resources of crayfish have not completely degraded, they have begun to pay attention to the improvement of crayfish varieties. In response to the degradation of the germplasm resources of crayfish, the crayfish team first proposed that crayfish must be separated from the industry aspect. The key is to breed well. Explore pilot.

The reporter learned that the problem that eventually led to the degradation, small specifications, and unstable output of breeding crayfish, one is that the original pond breeding model was not carried out for many years after being put into the crayfish for many years. The second is that crayfish breeding is multi -generation, and close relatives will reproduce. After three consecutive generations to the fourth generation, it may be from the chlorpylonon grandpa to the crayfish father in the pond. This kind of breeding model is always easy to develop. The third is to remove the most advantageous and fastest -growing individuals and sell them all. In the end, the small and slower individuals are breed in the pond, breed to the next generation, and they are eliminated for a long time. Small, poor quality, and the price cannot go up, especially when a large number of listing in May and June, although the output is very high, the yield per mu is four or five hundred pounds, but it can only sell six or seven pounds. The price is very cheap. high. After years of hard work, compared with ordinary non -selected varieties, the team selected by the team is very obvious during the breeding process. The growth rate is fast. There are more edible parts.

Choose the first new species in the country in China, and the goal of "there are listed crayfish throughout the year"

The Pukou Base of Tamsui Research Institute of Jiangsu Province is located in the Yangtze River Water Department. On the left is the old mountain, and the right side is the Luhe River. Du Danggao said that a egret can eat dozens of crayfish a day.

The crayfish team also created a base at the same time, cooperating to undertake the major new varieties of Jiangsu Province, the unveiling of the seed industry, and the Modern Agricultural Key Project of the Crayfish Seed Industry of the Provincial Department of Science and Technology. Essence Xu Zhiqiang said that the brand's brand is mainly three production. It is bigger and stronger. It also needs to improve the variety. Promotion.

The new varieties of crayfish grow fast and good, and it can be called the "king" of crayfish. If the breeding is promoted, the market is small and small, and the quality crayfish with poor quality will gradually be eliminated. The reporter learned that the new variety is currently piloting at the province's demonstration base. The variety of crayfish is good, and the key to the average output of acres can be increased. From the previous data, the advantages of the Jiangsu crayfish team are very obvious, the output increases by about 13%, the quality is good, the price is high, and the average acres of land farmers increased by more than 3,000 yuan. Some time ago, shrimp and crabs were mixed, not counting the value of river crab. Crayfish returned more than 10,000 yuan, and the investment cost was 56,000 yuan. From the seedlings to the listing, the launch time is very short. The funding of farmers' funds is very fast, and the cost of investment is relatively low. For farmers, the investment can be recovered for more than a month, which is very attractive. Jiangsu crayfish has a large area of ​​breeding. On the one hand, it benefits from the promotion of the province's fishery technology departments. On the other hand, the natural advantages of the crayfish industry are very attractive to farmers and naturally want to raise them.

"There is no end to breeding varieties. Previously selection of high -quality crayfish, in the future, our goal is to choose a crayfish that can be cultivated in the summer and crayfish that can be cultivated in summer. Currently, crayfish seedlings can grow naturally in March and April. In order to achieve the listing of crayfish peaks and accurate support, according to industrial needs, there must be seedlings breeding throughout the year, and crayfish are listed. "Xu Zhiqiang introduced that in addition to the breeding technology of seedlings, in ecological breeding, healthy breeding, green green, green, green, green In addition to breeding, peak breeding is also required. Normally in May and June, a large number of commodity shrimp is listed, and the shrimp has fallen for many prices. Now through drought coercion and other means, some seedlings can be cultivated in autumn. Crayfish is not afraid of cold, but if you are cold, you do n’t eat feed and do n’t have meat. Therefore, in the greenhouse, There will be a small part of the Spring Festival. Xu Zhiqiang hopes to work hard. In the future, including the Spring Festival, there are crayfish in the market.

Xinhua Daily · Jiaojiao Reporter Ding Weiwen

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