When the early water temperature rises to 8°C, the fish should be put into use. This requires a healthy body, neat specifications, and a weight of 250 grams or more.
In the spring of early feeding, aquatic grasses and concentrates were used as the main ingredient, followed by plants and terrestrial herbs. Every time you feed, you must set a fixed time. The number of feedings depends on the weather, the temperature of the water and the activity of the fish. The feed should be clean, fresh and tasty. When feeding is started, it is fed once a day, and then every morning and in the afternoon, the feed amount of concentrate is 1.5% to 2.5% of the fish body weight, and the feed amount of green feed is 4 to 6 hours after feeding. It is advisable to eat inside. Early fertilization at a water temperature of 7 °C ~ 8 °C, it should be fertilized and cultivated natural feed, generally per acre surface of livestock manure 100 ~ 150 kg. If chemical fertilizers are applied, nitrogenous fertilizers and phosphate fertilizers should be used, and some potassium fertilizers should be used. The ratio of the three is 1:1:0.5, which is usually applied once every 5 to 7 days.
Early water adjustment Early spring water temperature is low, fish is small, food consumption and activity is not large, the pond water level should be from shallow to deep. Water is added once every 15 days, and it is added to about 1 meter in April. When watering, it is necessary to install a fishing device to prevent wild fish from mixing in.
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