The density is four or five times higher than conventional seedlings, and the selling price is 50 percent higher. He makes tens of millions of dollars a year from circulating water seedlings

The circulating water system produced 120 kg of California perch seedlings per cubic meter of water, and the survival rate was over 90%.


"I cultivated the bass seedlings, each 2.6 yuan, than the market generally bass seedlings price is 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, Ezhou Aquatic Products Co., Ltd. Intelligent temperature control circulating water seedling plant, the general manager happily 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. Ji Haijun said that in order to ensure water safety, the water in the reservoir is not directly used for breeding, but is processed by the micro filter pool before entering the breeding pool.



Aquaculture water flowed from the breeding to micro filter pool, via the return water pipe with ozone disinfection treatment, through 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.



He has been raising fish for 30 years and has been breeding 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 in Shandong province after learning about the circulating seedling model. In cooperation with the Yangtze River Fishery Research Institute and the Pearl River Fishery Research Institute of the Chinese Academy of Sciences, he began to breed sea bass fry. 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." Master said, bass is carnivorous fish, in the early seedling period, have to eat live worms, the opening material is 350,000 yuan a ton of fertile insects, in the later stage, began to domesticate fry to eat feed, in order to avoid because of 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.