Pond masterfish culture technology
The herring are also known as Qingyi, Wuqing and Luofuqing. The fish has large individuals and delicate meat. It ranks first in the “Four Home Fishes†and is highly favored by consumers. The market is in short supply. Therefore, it is worthwhile for the pond to raise the value of herring.
The pond preparation pond requires sufficient water and no water pollution. The water depth is maintained between 1.5 and 2.5 meters. The area is between 5 and 10 mu. The pond is solid and does not leak water. It has plenty of sunshine, flat bottom, and less silt. Before fish stocking, remove excess silt in the pond. After freezing and exposing for several days, add 30 centimeters of water. Then dissolve the entire pool with 150 kg of lime per acre. Filter the water every 2 days to 3 days, and then use tea seed. 50 kg of cake per acre soaked after a day and night splash. At the same time, it is required to have a power supply, and a 3-kilowatt impeller-type aerator is provided for every 3 mu to 5 mu of water, and a bait feeder is used.
After the fish species are released and the drugs to be disinfected are no longer toxic, filter water to prevent the wild fish from mixing into the pool. Fish species should be stocked before and after the end of February, so the water temperature is low, and the scales of the fish are tight. It is not easy to inflict the fish species such as nets and handling. Each acre stocking rearing weight of 1 kilogram of second-instar black carp species from 200 to 250, with a tail weight of 0.3 kilograms of carp species of 100 species, 50 species of carp species, and 50 kilograms of Ukrainian species with a tail weight of 20 pounds. The fingerlings shall be bathed with copper sulphate (8 g/m2) and bleaching powder (1 g/m2) for 20 minutes to 30 minutes before entering the pond or disinfected with 3% to 5% saline for 15 minutes.
The feed was fed with artificial compound feed with a crude protein content of 30% or more. The feed particle diameter was 4 mm and the length was 1.5 to 2 times the particle diameter. Wood and bamboo boards can be used to construct a bait station that extends from 3m to 4m in the center of the pool. The domestication of the herring clusters is carried out by the acclimation method and gradually comes down to the bait station for feeding with the bait feeder. Daily feed rates may be 1.5% in March, 2.0% in April, 3.0% in May, 4.5% in June, 5.5% in July, 6.5% in August, 5.0% in September, 3.0% in October, 2.0% in November Execution, and flexible control of water temperature, water quality, fish disease, fish eating and eating activities. Feed 3 to 4 times a day.
Day-to-day management 1. The patrol pond: It is necessary to inspect the ponds every morning and evening to check the water quality and observe the fish. From June to September, an aerator is opened at noon on a sunny day for 1 hour to 2 hours. During the rainy days, it is switched on at midnight. When the floating head is heavy, it must be turned on to the dawn. 2. Water quality management: Regularly add new water, and the water quality meets the requirements of “fat, live, tender, and coolâ€. In June, every 15 days to 20 days, Quanchipa will splash lime 1 times (in an amount of 15 kg to 20 kg per mu). 3. Fish disease prevention and control: Disinfect the entire pool with chlorine preparations and add drugs to the bait to make baits.
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