Matters needing attention in releasing fry in new fish pond 1. Pay attention to disinfection.
Pay attention to disinfection of fry in newly dug fish ponds, because there are a lot of bacteria in newly dug fish ponds. If it is not disinfected, it is easy to cause fry to get sick. Generally, each acre of land can be sprinkled with 50 kilograms of quicklime mixed with water and disinfected in a few days.
Step 2 pay attention to nutrition
The new fish pond doesn't have enough nutrients, and the fry can't grow vigorously. Therefore, before putting the fry, it is necessary to apply fertilizer, preferably 500 kilograms of fermented manure per mu, and then inject water to cultivate plankton for the fry to eat, and then put the fry in the water after forming a stable ecological environment.
Step 3 watch the time
Pay attention to the time when putting fry in the new fish pond. Fish fry generally like to grow in a warm environment, so it is generally best to release fish fry in March and April when the water temperature is stable at around 10℃. Otherwise, if the fry are released too early, it is easy to grow poorly.
4. Pay attention to management
The ecological environment of new fish ponds is generally not stable. Therefore, attention should be paid to the water quality when releasing seedlings, and reasonable regulation should be carried out according to their growth and water quality. If necessary, they should be supplemented with oxygen, otherwise the oxygen content in the water is too low, and the fry will easily die in a large area.