"Fishing ground cultivation of bass seedlings, each 2.6 yuan, than the general price of sea bass seedlings on the market about 50 percent expensive, but also in short supply. As of May 31, spring seedlings have sold more than 30 million, has gained a net profit of more than 10 million yuan." A few days ago, the aquaculture company intelligent temperature control circulating water seedling plant, watching the bass fry cheerful eating. Good prices come from good products, and good products come from scientific breeding. According to the introduction of the aquatic technician, the company adopts the circulating water high-density seedling breeding method, which is a modern breeding mode integrating modern engineering, electromechanical, biology, environmental protection, disease prevention and control, feed science and other disciplines, and the cooperative application of multiple modules such as physical biological filtration, oxygenation and sterilization, and intelligent control. The intelligent temperature control workshop has a special biological filter tank of about 1200 cubic meters, in which the micro filter is very visible. The director of the field introduced that in order to ensure the safety of water, the water in the reservoir is not directly used for aquaculture, but is processed by the micro-filter pool before entering the aquaculture pool. Aquaculture water flowed from the breeding to micro filter pool, via the return water pipe with ozone disinfection processing, into the physical filtration, micro filter to remove particles and impurities, and then enter the pool, using microbe filter processing, to eliminate the harmful material such as water nitrite, then after oxygen cone of oxygen, through the main in the return piping back to the fish pond. The farm has been raising fish for 30 years and began to breed four large fish fry since 2007. In recent years, with the improvement of people's living standard, the market demand for characteristic fish such as bass is exuberant. In 2019, he invested more than 12 million yuan to build a 2,700-square-meter intelligent temperature controlled circulating water seedling plant after learning about the circulating seedling model in Shandong province. He also started to breed bass fry in cooperation with the Fisheries Research Institute of the President of the Chinese Academy of Sciences and the Pearl River Fisheries Research Institute. Since it went into production last December, it has more than 14,000 bass parents. "Feed the harvest worms in the winter, the water worms in the spring, and then feed the powder." The farm long said, perch is carnivorous fish, in the early seedling period, have to eat live worms, the opening material is 350,000 yuan a ton of fertile worms, in the late period, began to domesticate fry to eat feed, in order to avoid eating ice fresh fish and cause water pollution. He said that through nearly half a year of circulating water seedlings, tasted a lot of benefits: one is the use of biological agents to prevent and control disease, breeding environment without pollution. Second, it is equipped with intelligent temperature control equipment, the water temperature is maintained at about 26 degrees all the year round, and the seedling is no longer affected by the season, and the seedling can be provided all the year round. Third, it can be high density breeding, high yield, good efficiency. With 60 kg seedlings per cubic meter of water, the density is four or five times higher than that of conventional seedlings. Also, after the filtration and disinfection of aquaculture, breeding out of the seedlings safe, disease-free, strong adaptability, the survival rate of more than 90%, 30% higher than the general seedlings on the market.
