Practice has proved that in the process of high-yield, high-efficiency and healthy breeding of aquatic products such as shrimps and crabs, the use of "micro-tube oxygenation" technology has energy-saving, low-noise, toxicity-lowering, water-saving, improved feed utilization, and promotes the growth and maintenance of aquatic plants. Stable water quality, improved shrimp, crab survival rate, specifications and yield advantages. The so-called "micro-tube oxygenation" technology is a micropore oxygen augmentation technique for a pond pipeline, also known as aeration of nanotubes. Although the pore size on the pores and aeration heads on the pipeline is small, it does not meet the nanometer requirements. The aeration and aeration of the bottom layer of the pipeline directly transports the oxygen in the air to the bottom of the water layer, which can greatly increase the dissolved oxygen content in the water. Compared with the waterwheel type and impeller type aerators used in aquaculture production in the past, the micro-tube aeration technology has the advantages of a wide range of aeration zones, uniform dissolved oxygen distribution, and low noise. Through the bottom of the aeration oxygen, reducing the presence of harmful gases, to reduce the disease, increase production purposes. The dissolved oxygen status is an important factor influencing the food intake of the cultured animals, the digestion and absorption rate of feed after food intake, and the growth rate and feed coefficient. According to the relevant research data, the fish's bait coefficient at dissolved oxygen of 3mg/L is double that at 4mg/L, and the growth rate of fish at 7mg/L of dissolved oxygen is grown at dissolved oxygen of 4mg/L. The fish is 20%-30% faster, and the bait coefficient is 30%-50% lower. When the amount of dissolved oxygen in the water reaches 4.5 mg/L or more, the appetite enhancement of the fish is extremely obvious; when it reaches 5 mg/L or more, the bait coefficient reaches its maximum value. At the same time, ammonia in the water is usually produced when the nitrogen-containing organic matter is decomposed when the oxygen is insufficient, or because the nitrogen compound is reduced by the nitrifying bacteria. In the absence of oxygen, ammonia will accumulate, and when it reaches a certain concentration, it will poison the cultured people, reduce food intake, grow slowly, and cause death at high concentrations. When the culture density is high, the pool water is often deficient in oxygen, and ponds with high organic content in the water can easily cause nitrite levels to rise. When the concentration of nitrite in the water accumulated to 0.1 mg/L, the food intake of the fish decreased, and the tissues of the carp showed lesions, dyspnea, restlessness, or unresponsiveness. In severe cases, fulminant death occurred. There are three main ways to install micro-aerobic facilities: 1, high pressure inflatable oxygen. A 2.2-kilowatt air aerator is set for every 6-10 mu, and a 1.5-cm-diameter nano tube is laid at the bottom of the pool in April. The tube is covered with micro-holes of nano-tubes, and it is fixed with stones and other heavy objects to prevent it from floating. 10cm from the bottom of the pool, the tube distance is 10-15m, and the ends of each hose are connected with the air outlet of the air aerator. 2, low pressure inflatable oxygen. A 3-kilowatt air aerator is set for every 30 mu, suitable for a water depth of 1.2m, requiring a flat bottom. In charge of air aerators, suitable water depth 1.2m, require flat bottom. The main pipeline adopts plastic pipes such as PVC, with an inner diameter of 6cm or more, an inner diameter of the branch pipe of 1cm, and a length of not more than 35m. The steel bars are horizontally fixed, and the difference between the height of the pipelines cannot exceed 10cm. The distance between the branch pipes and the branch pipes is 8-10m. UVB is present in natural sunlight and is an effective treatment for psoriasis. UVB penetrates the skin and slows the growth of affected skin cells. Treatment using UVB can include UVB phototherapy, excimer laser, or in-office or home UVB phototherapy. UVB Phototherapy,Uvb Light Therapys,Uv Light Therapy,Narrow Band Uvb ,Uvb Lamp Psoriasis Ningbo Queen Electronic Science Technology Co., Ltd , https://www.queenmeds.com
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