Pollution-free breeding technology for pike ponds
1. Pond conditions
The pond should be cleared with water on 5 month2 day, and use quicklime 50kg/mu; 5 month
During the cultivation and temporary raising of forage fish, microbial agents (such as EM bacteria, etc.) can be used to regularly disinfect the forage fish to prevent diseases from being introduced into the main breeding pond and affecting the growth of white-spotted pike. In the early stage of breeding, the water level in the pond has been controlled within 1.5m; as the water temperature rises and the fish grows, the water level in the pond continues to deepen to above 1.5m; during the high temperature period in summer, deep underground well water is injected into the pond every day to keep the water fresh, and the water temperature is adjusted and controlled below 28℃. 3. During the trial breeding process, the principle of prevention was adopted, and ponds, seedlings, bait fish, etc. were strictly disinfected with quicklime, salt, and microbial preparations, so no obvious disease symptoms occurred. After careful feeding, on 9 month 27, the pond will be cleared, and the white-spotted pike and white silver carp bait fish with an average weight of 360g will be transferred to the overwintering pond, and the white silver carp adult fish will be transferred to other ponds;35 summer croaker fry were fed. The weight of the bait fish reached 2.45 tons, and the equivalent feed coefficient was 5.15. 1.3.28℃, and sufficient and palatable bait fish should be stored in the overwintering pond to avoid the phenomenon of individual white-spotted pike cannibalizing each other, ensure rapid growth of the fish, and increase the rate of fish emerging from the pond. The more ideal method is: first, cultivate forage fish in the original pond, that is, cultivate a sufficient amount of white-spotted pike in the breeding pond before entering the pond (the amount of bait fish planned to be fed within half a month