CATDOLL : CATDOLL: Will the acceptance of Japan's shrimp factory farming project have an impact on the white shrimp?

Will the acceptance of Japan’s shrimp factory farming project have an impact on the white shrimp?

The cultivation of whiteleg shrimp covers almost all areas along the southeast coast, and the cultivation area and output are also expanding year by year. In recent years, whiteleg shrimp diseases have been rampant, which is largely related to the pursuit of high yields. In the past two years, the industry has also been trying new models to cultivate other shrimp species to break the situation where whiteleg shrimp "dominates the world". Recently, the project "Key Technology and Demonstration of Healthy Factory Cultivation of Japanese Capsulizer" jointly developed by Sun Yat-sen University and Shenzhen Datong Weiye Technology Co., Ltd. was accepted.

The acceptance results show that the benefits of factory-farming Japanese shrimp are considerable, but some technical improvements and sufficient funds are needed to promote it. According to Lin Shaoyang, general manager of Shenzhen Datong Weiye Technology Co., Ltd., the project was carried out at the shrimp seedling farm of Shanwei Hongyue Breeding Co., Ltd., with a total of 10 test ponds, all of which are 240. The seedlings were put on August 20 this year, with a total of 100,000. The breeding lasted for 4 months, and the fishing started on December 20. The total output was 180 catties (specification 72 pieces/catty), the average output was 0.75 catties/O, and the per-acre output was about 500 catties. According to the current pond price of Japanese shrimp of 65 yuan/catty, the per-acre output value is about 32,500 yuan.

"The cost of breeding alone is about 20 yuan per catty. However, because it is carried out in a ready-made shrimp nursery, the cost of technical equipment is not included." It is understood that the bait of Japanese shrimp in the early stage of breeding mainly relies on biological bait in the breeding water. However, if it is factory-farmed, the photosynthesis in the cement pool is poor, which affects the reproduction rate of biological bait. "For factory-farmed breeding, biological bait is the primary issue." Lin Shaoyang said. Liu Xuefeng, head of the breeding section of the Shanwei City Ocean Fisheries Bureau, believes that although the output of white shrimp is high, the breeding risk is also high, and the pollution of seawater is also becoming increasingly serious.

Japanese shrimp farming currently seems to have a price advantage, and factory farming has a high degree of controllability in terms of water quality and disease prevention. However, it is also said that for ordinary farmers, the equipment investment in factory farming is too large and generally difficult to support, and it is still difficult to promote it.

Yes, there is no problem with small-scale farming. However, if the quantity is as large as that of white shrimp, the price advantage will not exist. And is the current factory farming technology really as impeccable as it is said to be?

Yes, just like beef and pork, if the price of beef goes down, the price of pork will definitely go down.

Yes, there is no problem with small-scale farming. However, if the quantity is as large as that of white shrimp, the price advantage will not exist. And is the current factory farming technology really as impeccable as it is said to be? View original post>>

Yes, there is no problem with small-scale farming. However, if the quantity is as large as that of white shrimp, the price advantage will not exist. And is the current factory farming technology really as impeccable as it is said to be? View original post>>

I want to ask about the market of white shrimp this year. The survival rate is low, the yield is low. They are dying suddenly. How can experts solve this problem? Is it a weather problem?

The farming of white shrimp is greatly affected by the weather and location. Most areas are not good this year, but some areas are very good, such as the high-level ponds in Yangxi. There are various explanations. The most popular one is that it is caused by "Vibrio parahaemolyticus". Some people say that it is caused by the algae in the seawater, and some say that it is caused by bad weather, etc. Here are some suggestions: 1. Pay attention to stress and detoxification before and after rain, cooling, heating and hypoxia, etc.

2. Thoroughly disinfect before stocking and disinfect for about 30 days during the breeding process, using povidone iodine

3. Use more live bacteria

4. Reduce density

5. Improve the bottom more often and open more aerators

That's all. There is no particularly effective method, otherwise it would be easy to raise shrimp.