Ultrasonic Nebulizer,Handheld Nebulizer,Mesh Nebulizer,Portable Nebulizer Machine Shenzhen urion Technology Co., Ltd. , https://www.urionhealth.com
1. Set the water requirements for cages: Set the water requirements for cage culture of Astragalus membranaceus to be free from pollution, convenient for drainage and drainage, and shelter from the sun. The area of ​​the pool is 1,000 to 2,000 square meters of small ponds. Easy to manage. The depth of the pool is between 70 and 120 cm. The bottom of the pool should be flat. In general, the total area of ​​the cages can be set to 333 square meters per 667 square meters of water surface, that is, the cage area is preferably 1/2 of the pool area. If the cage is set too dense, it will easily pollute the water and the disease will easily occur.
2, the size of the cage size: the size of the cage is generally about 10 to 20 square meters is good, too much unfavorable management, and too small is relatively high cost. The height of the cage is about 80 to 100 cm. Generally, the cage is kept at a depth of 50 cm below the water and 50 cm above the water.
3, the structure and production of cages: cages from the nets, frames, piling, sinkers and solids (anchors, underwater piles) and other components. The mesh is usually made of mesh, and the mesh size is about 30 mesh (0.3 to 0.5 cm). It is a knotless mesh, that is, the cage material and specifications of the summer fish species. The cages can be framed cages or frameless cages. The frameless cages are to be fixed with bamboos, that is, they are piled in the four corners of the cages, and the cages are tightened in four directions so that the cages are suspended. In the water. It is important that the bottom of the cage be fixed. Generally, the bottom of the cage is fixed with a gabion or a rope.
4. The erection of cages: The cages are erected with separate box racks and group boxes arranged in multiple boxes. Single box erection only requires cage tension and tension. Group box erection should also consider the distance between the box and the box and row spacing, the general spacing requirements are about 1 meter, row spacing is about 2 meters. The setting area of ​​the cage in the pond should not exceed 50% of the pond area. The upper part of the cage requires about 50 cm of water to be exposed, and the bottom of the box is more than 50 cm above the bottom of the pool to facilitate the exchange of water.
5. Ancillary facilities: Auxiliary facilities for raising cages on cages include food counters and trestle bridges. Food table can be used mesh, wood, etc., generally set at 30 cm underwater, there are also no food table, the food is cast in the box on the grass. Trestle bridge is very important for scale farming, easy to feed, observe and manage. There are also trestle bridges that are not replaced by fish boats.
Design and arrangement of astragalus aquaculture cage
Cage culture is a new type of cultivation method. Due to its small investment, low water occupation, no limitation on the size of water bodies, low occurrence of disease, and high breeding efficiency, its development is very rapid and it is growing exponentially each year.