China's large-scale artificial shrimp farming began in the early 1980s, but it wasn't until 1985 that the South China Sea started large-scale shrimp cultivation. In 1993, a nationwide shrimp disease outbreak occurred, and to this day, viral diseases have remained difficult to control. This has led to significant financial losses for many shrimp farmers over the years, seriously hindering the healthy development of the aquaculture industry. Moreover, when shrimp farmers resort to excessive use of drugs after disease outbreaks, it not only increases production costs but also causes pollution in shrimp ponds and surrounding marine areas. Residual drugs in shrimp bodies can reduce their quality and negatively impact exports and foreign exchange earnings. With China's accession to the WTO, addressing these issues in shrimp farming has become more urgent and important than ever.
To tackle these challenges, a company introduced a new model of high-quality, high-yield, and efficient shrimp farming, aiming to promote the sustainable development of the aquaculture industry. By collaborating with relevant departments and experts, they learned from successful aquaculture practices. The author was involved in research at Bailing Village, Dongli Town, Leizhou City, where the South Zhazi Aquarium conducted studies on a circulating water ecological intensive shrimp culture system. This model achieved excellent results and is now being shared as a reference.
The aquaculture facility includes a test pool with an area of 1.71 acres and a depth of 3 meters, with an average water depth of 2.4 meters. The maximum water volume is 2,717 cubic meters, while the general volume is 2,400 cubic meters. Additional infrastructure includes deep-water aerators, sewage tanks, sedimentation tanks, aquatic biotrenches, filtration tanks, and bacterial pools. On April 13, 2001, 212,000 white shrimp seedlings were introduced, each measuring 0.9–1.3 cm in length.
This model features a closed-loop water recycling system, which significantly reduces water usage and environmental impact. The water flow follows a cycle: shrimp pond → sewage tank → sedimentation tank → aquatic biotrench → filter tank → bacterial pool → shrimp pond. No seawater is added during the process, except for well water to compensate for evaporation and seepage. This makes it a water-saving, eco-friendly, and pollution-free system. It also prevents external pathogens from entering the farming environment, reducing the risk of disease.
Another key feature is the use of beneficial bacteria instead of chemical drugs. Throughout the entire farming process, no medication is used. A bacterial breeding trough is placed at the bottom of the bacterial pool, and the amount of beneficial bacteria is determined based on factors such as shrimp numbers, growth conditions, water quality, and weather. The filtered clean water flows into the bacterial pool, where beneficial bacteria are continuously introduced into the shrimp pond. These bacteria help control harmful bacteria and viruses, consume shrimp waste and mucus, and produce dissolved oxygen. They also serve as a natural food source for juvenile shrimp, leading to faster growth, better color, and higher quality shrimp without drug residues.
In addition, aquatic organisms like seaweed are planted to absorb harmful substances in the water. Through the centrifugal effect of deep-water aerators, excess feed and feces are moved to the sewage tank, then to the sedimentation tank. After settling, the water moves to the aquatic biotrench, where harmful components such as nitrites are absorbed by the plants, improving water quality and supporting healthier shrimp growth.
After 98 days of cultivation, the test ended on July 21. Random sampling showed that the shrimp had uniform growth, a grayish-white body color, and no signs of disease or abnormalities. The average length was 11.87 cm, with an average weight of 18.52 grams per shrimp, equivalent to about 54 shrimp per kilogram. A total of 2,719.1 kilograms of *Penaeus vannamei* were harvested, yielding 1,590.1 kg per mu, more than double the yield of traditional high-density ponds. The cost per mu was around 30,000 yuan, including facilities, and the cost of beneficial bacteria was 1,500 yuan per mu. Despite low shrimp prices this year, the output value per mu still exceeded 48,000 yuan, with profits reaching over 15,000 yuan per mu after expenses. If properly equipped with heating systems, the model can be operated up to three times a year, potentially increasing annual profits to over 45,000 yuan per mu.
This innovative model has achieved a win-win outcome in both shrimp production and quality, and is expected to bring a new era to the shrimp farming industry.
Tuna Canned,Canned Tuna,Tuna Fish Can,Canned Tuna In Sardine Packages
Zhoushan City Shuangying Aquatic Products Co., Ltd.  , https://www.shuangying-aquatic.com