Technique of rearing fry of obscure puffer in low salinity sea water
A technology of puffer obscurus and low salinity, applied in the field of artificial breeding of freshwater fish, can solve the problems of low survival rate of fish species, waste of fresh water resources, wound inflammation, etc.
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[0006] Implementation steps:
[0007] (1) Selection of ponds: Choose an earthen pond in the estuary area with a flat bottom and complete water inlet and drainage facilities; preferably an east-west rectangular earthen pond with a water level above 150cm, with an area of 5-20 mu.
[0008] (2) Disinfection and washing of ponds: According to the seedling release time, 75-100Kg / mu of quicklime or 20ppm bleaching powder water is used to disinfect the ponds in advance, and the drainage screen bag is installed before disinfection, and the water inlet is covered with double-layer 60 mesh Filter with sieve tulle bag, use 30-mesh gate at the outlet, and 20-mesh curved seine near the pool surface to prevent fry from escaping. After the pond is disinfected for 2 days, soak in water until the bottom of the pool is submerged, and drain thoroughly after soaking for 48 hours. stand-by.
[0009] (3) Water intake and fertilization: According to the seedling release time, the water intake sho...
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