is used after the fry is put in the pond? Generally, there are two ways to disinfect the fry, one is to add drugs to the feed, the other is to hang bags for disinfection. If drugs are added to the feed, salt or fish blood can be used once a month, and the feed can be fed continuously for 4-5 days. If you use the hanging bag disinfection method, you need to prepare quicklime or bleaching powder, which is usually disinfected every 10-15 days.
of disinfection. 1. Pond cleaning and disinfection: Pond cleaning and disinfection is carried out before fish farming, generally with great efforts, so as to ensure that harmful bacteria and other threatening organisms in the pond are eliminated. Generally, the disinfectant used is bleaching powder or quicklime, but the two can not be mixed, otherwise it will affect the efficacy.
2. Fish fry disinfection: Fish fry disinfection is to prevent it from carrying harmful bacteria into the fish pond, so it should be disinfected before stocking. The method of disinfection is also relatively simple, the fry can be soaked with povidone and other drugs, the soaking time is not too long, after soaking, it can be directly put into the fish pond.
3. Feed disinfection: As mentioned above, the main method of feed disinfection is to mix the medicine into the feed. 1% salt can be mixed into the concentrated feed, or 250 grams of fish blood can be added to every 100 kilograms of feed once a month for 4-5 days.
