Disinfection with fingerling bags is a new method of fingerling disinfection that has been summarized and used by farmers in recent years. The benefits are simple, save money, have less fish, and have a high survival rate. The method is:
First, operate to unpack the mouth of the fish and place it on the edge of the pond. The water inside and outside the bag is flat. Shake the liquid into the bag and observe the activity of the fish. After the disinfection is completed, it can be put into the pond.
Second, the use of drugs (1) bacterial diseases: 3% to 5% of salt solution dip fish species for about 20 minutes (the following refers to the water temperature of 20 °C or so); or with 8 mg / liter copper sulfate and 10 mg/L bleaching powder mixed solution was used to soak fish species for about 20 minutes; (2) Third-generation worms, trichoderma disease: immersed fingerlings with 20 mg/L potassium permanganate solution for about 20 minutes; or 5 mg/kg Rinse the bleach solution with 3 mg/L caustic soda for about 20 minutes.
III. Precautions (1) Drugs should be sterilized after being diluted according to the standard, and should not be directly infused with solid drugs; (2) Drugs should be ready for use; (3) Drug doses must be accurate to avoid insufficient doses or overdose (4) Do not dissolve the drug in the metal container; (5) The immersion time should be appropriate. If abnormal fish species are found, immediately add water or put it into the pond.
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