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2. The cultivation and breeding ponds are sterilized according to the seedling cultivation method. The pond water is kept at a depth of 30cm-50cm, and organic fertilizer such as pig manure is used to cultivate the water quality. The dosage is 20kg to 30kg per square meter. After the drug disappears, the pot water can be put into the pot after the fertilization. The stocking density of the pot of 3 cm to 4 cm in size is 50 to 60, and the water flow condition may be appropriately increased.
3. Feed management is based on fertilizing water quality and providing natural food. It is necessary to feed animal feed such as aphids, razor clams, quail meat, fish meal, small fish, livestock and poultry waste, and wheat bran, rice bran, bean dregs, cakes, etc. Plant feed, or artificial compound feed. Normally every day, every afternoon feed, the daily feeding is 5% to 10% of the loach's body weight. Feeding should be handled flexibly according to water quality, weather, and feeding conditions. Loach can be fed at 15°C and thunderstorm days. In addition, reasonable fertilization should be based on the water quality. The transparency of the pool water should be 15cm to 20cm, and the water color should be yellow-green. When the water temperature reached 30°C, the pool water should be changed frequently and the depth should be increased. When the muddy ducks were found to swim to the floating surface of the water to “swallowâ€, indicating lack of oxygen in the water, fertilization should be stopped and new water should be injected. Increase the depth of pool water in winter and apply manure such as cow dung and pig manure to the pool corner to increase the water temperature and ensure that the loach is completely wintered.
Pond cultivation techniques
1. Pond construction chooses sheltered winds, easy access to water, easy water diversion, weak alkaline sediments, and no pesticide-polluted areas. The area is generally between 100 m2 and 250 m2, and the pool depth is 0.7 m to 1.0 m. Ponds can be built into concrete or earthen ponds. . The earthen pond wall needs to use bricks, stones, or triple soil compaction, the bottom should be compacted, so that solid, durable, no loopholes, the bottom of the pool into the mud 20cm ~ 30cm. The inlet and outlet are stopped by barbed wire or plastic mesh. The bottom of the tank is inclined towards the outlet for drainage and fishing.