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Autumn technology. At the end of the fall, ponds will be ponded over winter or after catching ponds to drain pool water in a timely manner to remove debris and excess silt. After 50-75 kg of calcined water per acre, the whole pool will be spilled. Then fertilize the water, and the organic manure 400-700 kilograms per acre is fermented, so that the fish can be eaten after the pond and the water can relatively increase the water temperature and enhance the cold resistance of the fish in the winter. The minimum stocking size of fish species should not be less than 15 cm. Generally, 700-1000 fish stocks should be stocked per acre, and the stocking ratio should be determined based on the source of feed and the water quality. Water quality fertilizer, adequate fertilizer, main squid, stocking rate 60% - 70%, with grass carp and squid; water lean, green fodder sufficient to put grass carp, stocking volume accounted for 50% -60%, polyculture Salmon and squid. Fish species before the pond, with 2% -5% salt solution dip sterilization. Choose sunny, weather-free species for stocking. The fish species under the pond began to be fed with concentrate feed, and the daily feeding amount was 1%-3% of the fish's body weight. Strengthen management in the winter and choose sunny days to feed feed. After the pond surface freezes, it plays ice to increase oxygen, in order to prevent fish from hypoxia.
There are many benefits for stocking in the fall
The benefits of autumn. When the water temperature in the late autumn is around 12°C, the stocked fingerlings are better than the stocking in the spring. First of all, the autumn season can allow fish species to adapt to the environment for a long time, improve the survival rate, and is conducive to the rapid growth of fish species after the water temperature rises in the coming year. Second, you can eat early to prolong the growth of fish and increase your yield. Can reduce fish disease, enhance physical fitness, and save money. In the autumn, the intensively cultivated fish species are strong in physique, strong in feeding power, and have adequate nutrient accumulation and strong resistance to disease. At the same time, the autumn fish species can be fished after being caught in adult fish, which reduces the need for re-water pumping, clear ponds, etc. during the spring season, reducing the cost.