Spring fish fingerling "bag sterilization" method
The "disinfection of bags" of fingerlings is a new method of fingerling disinfection that has been summarized and used by fish farmers in recent years. Its advantages are simple, cost less, and can reduce fish diseases with a high survival rate. The method is:
1. Operation: Put the nylon bag of the fish species on the edge of the pond (unfasten the bag mouth). The water inside the bag is flat. Shake the liquid into the bag and observe the movement of the fish. After the disinfection time is completed, throw the fish into the pond.
2. Drug preparation and soaking time: 13% ~ 5% salt solution, dipping fish species for 20 minutes, can prevent bacterial diseases. 2 Use 10 to 15 mg/L of copper sulfate solution to soak the fingerlings for 15 to 20 minutes to prevent and control trichoderma, filariasis, and hair worm disease. 3 Use 10mg/L bleach solution to dip fish species for 20 minutes to prevent bacterial skin diseases and rickets. 4 Use 20 mg/elevated potassium manganate solution to dip fish species for 20 minutes to prevent and control the third generation of insects, trichoderma and so on. 5 With 8 mg/L copper sulfate and 10 mg/L bleaching powder mixed solution dip fish species for 20 minutes, can prevent bacterial gill disease, red skin disease, enteritis disease. 6 Use 5mg/L bleaching powder and 3mg/L caustic soda mixed solution for 20 minutes to prevent and control the third generation of insects, ringworm disease and so on. 7 Use 0.2 mg/L fish-worm spirit solution to dip the fish species for 15 to 20 minutes to prevent diseases such as fish gills, anchor head gills, sword blisters, blisters, and pine algae.
3. Precautions: (1) The drug should be poured into the bag after being diluted according to the standard. Do not directly spill it into the bag. Do not dispose the drug in the metal container with the use. (2) Disinfection time refers to the time when the water temperature is about 20°C.
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