Small-scale farming technology difficulties

Krill crayfish, commonly known as crayfish, is a freshwater economy shrimp. Because of its wide adaptability, natural populations have developed rapidly and have formed a nationwide distribution. In the past, most of the crawfishes that were sold on the market came from natural fishing. Due to changes in the environmental conditions of the waters, it is very difficult for the crayfish to survive in natural waters, especially driven by profits. The larvae have been wiped out and the natural resources have not been regenerated, and natural resources have been declining and even depleted.

Krill crawfish meat is delicious and nutritious. It is popular with people and has a large domestic consumer market. In the world, European consumption of crayfish has reached a level of fanaticism. In the United States, it is not only an important food shrimp but also an important bait for fishing. Therefore, the international market has a very broad prospect. The purchase price of the shrimp from June to September during the listing period is as high as 20 yuan per kilogram. At present, many investors are eager to start the scale farming of the crawfish crayfish.

In the past, people did not realize that the crayfish were so prosperous that there were few studies on artificial breeding techniques. At present, there are still some difficulties in scale farming: First, the problem of seedlings. The reproduction of crayfish is very special. Most of the breeding process is done in caves. There are habits in the abdomen, and the amount of eggs is small, usually between 100 and 700 grains. Only a few dozen or up to one or two hundred shrimps can be bred, limiting the scale of seed production. The second is feed issues. For feedlessness studies of C. chebularii, there is no feed factory that has specialized crayfish supply. When food is insufficient or malnutrition is cultivated in the culture, the C. krill have the habit of killing each other, and the hard shell shrimp is very invasive to the soft shell shrimp. The third problem is disease. In natural waters, although Crawfish crawfish have strong disease resistance and are not susceptible to disease, various environmental factors are complicated after a high-density culture. A slight inaccuracy may lead to disease and even total military annihilation. The fourth problem is burrowing. The crayfish crayfish has a strong ability to survive, like burrowing life, so the destruction of the pond clams is quite serious. As a newly-cultured breed, farmers must fully consider these difficulties before breeding in the process of scale-up cultivation of crayfish.

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