1.Frame :high quality section steel welding,The surface electrostatic spray, durable, beautiful and generous.
2.Bed panel is made of molding cold rolled steel, surface electrostatic spray, corrosion resistant, easy to clean.
3.Head & foot board:use ABS high quality engineering plastics and stainless steel pipe, lined with fireproof board, beautiful appearance, soft color . easy to removed.
4.Caster:use Taiwan Shi Ke Rui control wheel,No noise, Convenient mobile, four wheel synchronous braking system, lock solid.
5.Guardrail: ABS lift rail
6．Motor : Taiwan LINKAN motor
Electric Hospital Bed,Medical Electric Hospital Bed,ICU Electric Hospital Bed,Electric Hospital Medical Bed Shandong Kang'erjian Medical Technology Ltd. , https://www.operatingtable.nl
1. Shrimp pond conditions The water quality in the sea area where the shrimp pond is located should be polluted by industrial wastewater discharged from clean, sugar-free plants, paper mills, and starch factories. The natural water depth is more than 60 cm, and the minimum annual salinity change in sea water is not less than 1 inch. Pool wells can draw fresh water.
Second, the intake gate setting is due to the closed earth culture of the earthen pond, which does not need to receive water from the sea during the later period. Therefore, the pond only needs to enter the water gate. Every 10 acres of shrimp ponds are equipped with a 1-meter-wide sky intake, with 3 gates in the gate chamber, a filter mesh in the outer tank, and gates in the middle tank. Each gate is about 20 centimeters wide, facilitating the adjustment of shrimp pond water level. The inner tank is equipped with a conical filtration watertight net.
Third, prepare before transplanting
(1) Drill wells in the shrimp ponds of shrimp ponds. The depth of the wells must be able to meet the needs of continuous water supply to the shrimp ponds. One pump with a flow rate of 100 cubic meters per 5 acres of ponds should be installed.
(2) After bathing in the pool, the influent water is 10 centimeters, and lime is applied for 80 kilograms per acre. After the lime is emulsified, the milk of lime is removed evenly with a shovel or a bamboo raft.
(3) After the disinfection, drain the pool water, install a 60-mesh sieve and conical mesh bag (8 meters long and 100 meters long), and use a cotton cloth or sack to lock the bottom of the gate, leaving no gaps. For the first time, the bottom of the gate retains a block of -2 gates to prevent excessive flow of water into the net bag, causing the bag to break. Within 2 days to 3 days, the water is poured into a depth of 60 cm - 70 cm. Then, the gate is sealed with clay to prevent the pool water from seeping through the gap in the gate.
Fourth, shrimp seedlings stocking density according to the depth of the pond to determine the depth of storage, water depth of 1 m -1.3 m, tiger shrimp per acre seedlings rooster 08000 10000 -1 million feed, South America white shrimp 10,000 seedlings per acre - 12,000 tails; water depth 1.4 meters - 1.8 meters, larvae per mu 19.9-1.3 million feeding, Penaeus vannamei 13,000 seedlings per mu. Restocking specifications (length): Prairie prawn 1 cm -1.2 cm, South American white shrimp 0.8 cm -1.2 cm.
Fifth, the bait feed feed should be implemented on the principle of small meals, body length 6 cm before feeding 3 times a day: 6:30 feeding 30% of the total amount of feeding, 18:00 vote 50%, 23:30 20% of the vote; after 6 cm in length, feed 4 times per day: 25% for 6:00, 15% for 10:30, 40% for 18:00, and 20% for 23:00.
Sixth, water quality management After the seedlings are injected into the shrimp ponds for 5 days, add well water, add water once every two days, and add 5 centimeters of water each time, until the shrimp ponds reach the depth of water storage. Summer hot weather should fill the pool. Water is added to the upper limit of the shrimp pond 1 to 2 days before the rainstorm, so that the falling rainwater will naturally overflow through the upper edge of the gate, preventing rainwater from drastically reducing the salinity and pH of the shrimp pond and affecting the growth of the shrimp or causing dead shrimps. .
7. Disease prevention and control As the change of the water color and the blackening of the bottom of the pool, the pool of shrimps is disinfected and the sediment quality is improved. Persist in sterilizing shrimp ponds with 1.5ppm bleach every 15 days and improve the bottoms with zeolite (20kg/mu) or lime mud. A medicine course is administered every 15 days for 3 days to 5 days for each course of treatment. The baits are prepared with 3 ‰ vitamin C, 2% allicin, and appropriate amount of cod liver oil.
Earthen pond closed shrimp farming mode
In order to prevent the outbreak of the outbreak of the shrimp virus, some farms have explored breeding methods such as high-range shrimp farming, brine-to-freshwater shrimp farming, and industrialized shrimp farming. However, due to the large investment, many farms (households) are difficult to use. In the past two years, the Sanzhonggang aquaculture farm in Binhai County, Jiangsu Province has adopted an earth pond closed shrimp farming model. Because of its low investment, good efficiency, and high breeding success rate, it is quite similar to that of neighboring city and county shrimp farmers. The technical points of the model are described as follows: