1, adult fish pond polyculture. Adult fish ponds are mixed with stingrays and there are no strict requirements for the species of pond owners. The fish pond area is 20-30 mu, the water depth is 2-2.5 meters, the water source is sufficient, the water quality is good, and the water injection and drainage are convenient. Generally, 40-50 tails of stingrays are planted in 3-4 cm long per acre, and 2.5-4 kg of stingrays are added per acre.
2, pro-fish pond polyculture. The pro-fish pond polyculture can not only make full use of the water space of the broodstock pond, increase the utilization rate of the broodstock pool, and the stingrays can feed on the omnivorous fish that consumes oxygen. After the broodstock is artificially propagated, 40-60 tails of stingrays with a length of 2-3 cm per acre are placed, and 3-5 kg ​​of stingray are added per acre.
3, crab pool polyculture. The crab pond polyculture stingray can make full use of the natural feed biological resources in the crab pond. The general crab pond area is 30-50 mu, and the water grass coverage is about 50%. After the stocking of the crabs, 30-50 tails of stingrays with a length of 3-5 cm per acre and 2.5-5 kg ​​of stingray per acre were added.
4, Hegou polyculture. There are many low-level wild fishes in the river ditch, and the mixed stingrays can save artificial feed. In general, 2-4 cm long per acre stingray seed 40-60, 3-6 kg per acre income stingray.
5, large water polyculture. The large-surface mixed yellow sturgeon has a high population yield, which does not affect the yield of the main breeding species and does not require additional feed. Generally, 40-60 tails of stingrays are planted per acre with a length of 3-4 cm, and 4-6 kg of stingrays per acre.
The following matters must be noted in the aquaculture management: (1) Keep the water body with high dissolved oxygen. (2) Maintain a reasonable stocking density and stocking specifications. General polyculture of 30-60 tail per acre is appropriate, stingray seed body length 3-4 cm, if the density is too large, the size is too small, the end of the year can not reach the market specifications. (3) After the polyculture of the stingray, the fish pond should not be mixed with other carnivorous fish. (4) During the breeding process, if the size of the stingray is found to be too small, it indicates that there is a shortage of natural feedstuffs in the fish pond, and it can be used to make up small trash fish, summer fish or fed stingray special feed. (5) The crab pond polyculture stingray must maintain sufficient natural feed organisms.
ICU Arm bridge for the hospital ICU wards, intensive care unit of modern medical rescue necessary auxiliary equipment ,mainly by the bridge dry and wet sections, characterized by the separation of wet and dry is reasonable structure ,allocation of landing and taking off the wet paragraph flexible and fluid infusion pump rack frame and infusion pump mount .
Paragraph can be equipped with wet and dry conditioning off and landing platform for the medical care equipment ,in the segment, respectively ,of wet and dry oxygen, air attracted by strength of electricity ,the network input terminals can be configured in the health care workers and staff body of tower.
The moving parts adopts Damping Friction Brake system, while also matching your request in accordance with paging communications ,monitoring ,video telephony, background music ,as well as teaching and long-distance diagnosis system.
Double Arm Electric Medical Pendant
Double Arm Electric Medical Pendant,Ceiling Pendant,Double Pendant Light,Electric Medical Pendant
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