Grasp the basic preparation: First of all, we must do a good job of material preparation, such as artificial breeding equipment, commonly used drugs, fish farming machinery and tools, as well as fertilizers and baits. Can not be from the breeding fish farmers and fish farmers, but also should choose a breeding unit for fish fry in order to buy back high-quality fry as soon as possible, but also should do a good job in clear pond pond disinfection work.
Grasping the release of fry and fingerlings: According to the local food and water quality conditions, identify the main breeding species. If there is a rich abundance of weeds, it is advisable to raise grass and carp; if the source of fertilizers is sufficient, we may raise grasshoppers, earthworms, whitefish, and tilapia. In regions where there are many snails and cockroaches, we may raise green and eel. The amount of stocking depends on the condition of the pond and the degree of rearing and management. Usually, intensive culture of fish ponds is 1,500 to 2,000 pigs per mu, and 500 to 1,000 pigs per mu are used for intensive fish ponds. In order to increase the yield per unit area, the varieties and specifications should be fulfilled. The rational mixed culture density of fish species, the fish species should be disinfected before stocking.
Pay attention to fertilization and feeding: The fish should be applied with base fertilizer before stocking, and the manure should be 250-300 kg per 1 mu; when topdressing, the amount of spring will be less in early spring, and in late spring it will be less; the water will be brownish, reddish-brown and transparent. About 30 centimeters.
Grasp the prevention and treatment of fish diseases: common fish diseases in spring are watery mildew, gill disease, and small melon worm disease. Fish disease should be based on early prevention. Every 1 month or so, 1 mg/L bleaching powder and 0.2-0.4 mg/L crystal trichlorfon should be poured into fish ponds. Found fish diseases, timely diagnosis, symptomatic treatment.
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