Fisheries Research Institute of Fujian Province, the international leader in artificial breeding technology, experts called for accelerated promotion
æ£ äºŒ 二 二 二 二 二 , , , , , , , , , , , , , , , ,? This is not impossible. Yesterday, an expert from the Provincial Fisheries Research Institute in Xiamen said in an exclusive interview with the newspaper: The recent research on the successful artificial seedling technology of grouper in Xiamen, if promoted, the expensive grouper is expected to enter the dining table of the people. The price is expected to drop from one hundred yuan to ten or twenty yuan.
According to reports, the provincial key scientific and technological project undertaken by the Provincial Fisheries Research Institute “Development of large-scale artificial breeding technology for grouper†has passed the results appraisal in the province. Compared with Southeast Asian countries and Japan, this technology is the most advanced. Unfortunately, this technology has not been fully utilized for two months and its scale is not high.
According to reports, grouper is the most difficult species for artificial breeding in marine fish. The difficulty lies in: On the one hand, the fish is hermaphrodite, and the female is first-matured. After the sexual conversion becomes male, the sex is more difficult to control; on the other hand, the newly hatched larvae are small in size (only half of true oysters and squid, etc.). Strict requirements on opening bait, larvae are slender; most experts are headaches, fry killing each other is very powerful.
In the past, grouper fish were artificially raised by natural fishing fry. There are two fishing methods. One is fishing, which is to catch fish. The other is cage. It is to make a special cage into the sea and put the food inside. The "cage" of the cage is relatively small. Only the small grouper can enter the cage to eat bait. The big fish can't get in.
So, which kind of constitution is better than artificial nursery and natural fry? Experts say that the natural fry's constitution will be better, but the artificial fry is relatively uniform in size, and the natural fry is often uneven; on the other hand, natural fry are caught up, and then the farmers have been tormented and tortured. Easy to hurt and die.
The researchers said that the Provincial Fisheries Research Institute has been researching grouper breeding techniques for 13 years. Although our technology is currently leading the world, it is a pity that only more than 1 million grouper species have been sold so far.
Due to the huge economic benefits of grouper, Japan, Southeast Asian countries, and the Persian Gulf countries are all vigorously carrying out research on artificial reproduction. At present, Taiwan's grouper species and species of fish, as well as species of fish and fertilized eggs in Southeast Asian countries, are mostly transported from the outside into the mainland by informal channels. Because there is no preference and quarantine, it is unavoidable to bring in a variety of diseases and cause damage to the domestic seed breeding and breeding industries and the ecological environment.
According to reports, with the gradual maturity of the technology and the supporting construction of the grouper breeding base, in the next few years, the southeastern coast of China will surely become the breeding and supply center for excellent seedlings of grouper in the Asia Pacific region. Therefore, it is extremely necessary to establish a large-scale grouper improved seed field to provide high-quality species of fish and seed for Fujian Province and China. The construction of the project can not only produce huge economic benefits, but also theoretically enrich the research content of the biology and biodiversity of marine fish breeding, and the sustainable development of national rare marine fish breeding industry, and the protection of marine ecological environment. , has a very important role.
Experts said that if the country can invest in a grouper breeding ground, it will be able to promote this technology to benefit people more quickly. He said that a large yellow croaker breeding farm can easily raise 4 million fry during a nursery season, but the grouper can breed hundreds of thousands of people.
One researcher said that the price of big yellow croaker had been as high as 150 yuan per kilogram. After large-scale artificial breeding, the price dropped to 30-40 yuan, which was a blessing to many consumers who could not afford large yellow croaker. Whether the grouper can follow suit or not will depend on whether this technology can be promoted in recent years.
Related Links Interesting grouper spawning process Grouper spawning process is very interesting, experts describe: For example, red grouper, spring and summer spawning generally occurs in the evening, lasting about 2 hours, but sometimes Continue until midnight.
At the beginning of spawning, the males chase the females and then approach the side-by-side, side-by-side. The first is to circle around together, after which the speed is accelerated, and the straight line moves forward for a few meters, and then “cockroaches†lifts the surface a few centimeters to complete spawning and discharging. After birth, male and female swim separately. It takes about 1-2 minutes to complete this spawning.
Grouper's habits Grouper, juvenile, juvenile fish of grouper feed on micro, small zooplankton. After growing up, it remained carnivorous and ferocious, not clustered. In the natural sea area, fish, shrimp, crab, shrimp oysters, sea urchins, brittlestars, and barnacles are consumed. When the grouper raises the grouper, there are also large fish that drive the fish or attack the fish. So eat high protein (fish and shrimp) fish, the nutritional value is naturally high.
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