Begonia artificial breeding technology (1)
There are more than 9,000 coelenterates in the world, and most of them live in the ocean. A few species of coelenterates are edible, or used as raw materials for medicines, decorations, and crafts. So far, only one type of jellyfish has been targeted for aquaculture. Jellyfish is a giant edible jellyfish with high economic value. Used as a natural resource, it has a long history in China. As early as 1700 years ago, the Jin Dynasty had already had a record of pickled sea lice. The highest output in recent years exceeds 700,000 tons. The sea bream processed with salt and alfalfa is popular in foreign countries. Its nutritious ingredients are unique in that its fat content is extremely low, and its protein and inorganic salts are abundant. The edible portion is mainly gelatine. Sea lice have the function of stopping the spread of wounds and promoting the formation of epithelium. Begonia as a health food, also has functions such as dilating blood vessels, lowering blood pressure, eliminating phlegm, and removing intestinal energy. Despite the long history of fisheries utilization of sea bream, as far back as the end of the 1970s, little has been known about its biology. In 1981, Ding Gengqi and others first revealed the life history of sea lice many times metamorphosis. They found that the oysters of sea bream were mature splitted and fertilized under the nurture of seawater after escaping from the ovary. They broke through the long-term history of the genus jellyfish in the digestive cavity. In the fertilization and early development of the insights, so as to obtain the success of artificial reproduction. In 2000, Liaoning Panjin Photosynthesis Aquatic Products Co., Ltd. began experimenting with large-scale cultivation of sea bream seedlings. For the first time, high-quality sea bream seedlings for artificial breeding were introduced, and farmers were successful that year. On this basis, in 2001, we expanded our production scale at the branch office of Erjiegou Town, Panjin City, Liaoning Province, and provided a large number of high-quality jellyfish seedlings for the coastal areas. This autumn, based on an in-depth understanding of market supply and demand, we have formulated a large-scale production plan and successfully completed it. In 2003, our company will incubate seedlings in three branches of Rongxing, Delta and Erjiegou in Panjin City, Liaoning Province. It is expected that in the breeding season in 2003, it will be able to meet the requirements of "as many as there are". Now the biological characteristics of the jellyfish are described as follows: First, the classification of jellyfish belongs to the coelenterate door, the jellyfish jellyfish, root jellyfish head, root jellyfish, jellyfish. There are four species: sea bream, sea bream, sea bream and sea bream. Among them, jellyfish and macular jellyfish are important edible jellyfish. In addition, edible jellyfish in the coastal areas of China also include the sand scorpion of the genus Jellyfish, leaf blade jellyfish of the leaf carp and the leaf jellyfish. Among the total output of edible jellyfish in China, the production of sea bream accounts for more than 80%.