Artificial breeding of grouper on the step of industrialization

Introduction: Ocean News: Recently, a long-standing scientific and technological research project, grouper batch breeding, has been solved on Dongshan Island, Fujian Province Experts from the South China Sea Institute of Oceanography, Chinese Academy of Sciences, have successfully cultivated grouper fry by using biological sexual control technology This year, a nursery in Dongshan County successfully produced 300000 grouper fry, which has made grouper fry step up the industrialization stage The cultivation of marine rare grouper has been industrialized for a long time, but the seedling technology of grouper has always been a problem in the field of science and technology The supply of grouper seedling has become the bottleneck of the industrialization of grouper culture Since 1985, Zou Jixing and other young experts from the South China Sea Institute of Oceanography of the Chinese Academy of sciences have targeted this project Over the past 10 years, they have successively applied for and completed the National Natural Science Fund, Guangdong Natural Science Fund, the Ninth Five Year Plan key project of the Chinese Academy of Sciences and the development fund project of the director of the South China Sea Institute of Oceanography of the Chinese Academy of Sciences In 1987, salmon grouper was successfully propagated for the first time and won the second prize of scientific and technological progress of Chinese Academy of Sciences In 1998, the technology of sex control and mass breeding of grouper was supported by 863 marine youth fund, which made a key breakthrough in this major scientific and technological problem The first problem to be solved in artificial propagation and batch breeding of grouper is how to quickly obtain enough male parent fish which can be propagated artificially For this reason, scientists all over the world have aimed at sex control technology After years of exploration, the experts of the South China Sea Institute of Oceanography, Chinese Academy of Sciences initiated the method of embedding the mixed hormone drug strips into the body to induce the sex reversal of grouper The artificial denatured male fish can be obtained three to seven years in advance within 45 to 80 days, and the sperm can be released for artificial reproduction In 1999, 30000 commercial fish fry were produced This technology has reached the international leading level and laid a foundation for large-scale batch cultivation of grouper fry The market potential of grouper in China is huge Experts estimate that in the southern provinces of Fujian, Guangdong, Guangxi and Hainan alone, more than 150 million seedlings are needed for grouper cage culture, while the natural catch is less than 5%, and the number has declined year by year At present, Japan, Singapore, Thailand, Taiwan and other countries and regions also see a huge market space in China After the WTO, overseas seedlings will enter the customs in a large scale, facing this situation Experts pointed out that China should increase the scientific and technological investment in the growth mechanism and ecological environment of grouper, pay attention to the industrialization process of artificial breeding, improve and reform the management system, and strive to make China's coastal areas become the supply center of grouper seedlings in the Asia Pacific region.