First, a reasonable change of water, increase fertilizer and water to raise a pool of shrimp, crabs should first cultivate a pool of water, ponds from the beginning of May, every 1 month or 20 days to use "medicine baits" and "liquid" Preventing pests and diseases once, it is unavoidable that some residual substances exist, and even in the autumn, it is necessary to constantly change new water, prevent pool water from becoming “oldâ€, and maintain proper transparency of fertilizer and water. General shrimp pool transparency to maintain 30 cm to 36 cm, more than 35 cm crab pool. Second, the rational feeding of food, promoting fertilizer long-grass fresh chicken feed after the beginning of autumn, fresh animal food accounted for 60% of the feed ratio, the daily amount of shrimp is 7% to 8% of the total; feeding animal feed on the amount of crab feed 65% of the daily amount is 10% of the total amount of crabs. After September, the temperature and water temperature gradually decreased, and the daily feeding amount was reduced to 4% of shrimp and 4% to 5% of crab. Third, the rational application of pesticides, prevention and treatment of diseases in the fall of pests and diseases must be perseverance, prevention in the end, continue to take "eliminate" and "internal" combination of methods to prevent the occurrence of pests and diseases. Every 20 days or so, use chlorine dioxide shrimp and crab medicine 100 grams per acre, Quanchiposa 1, plus at the same time in the feed to add "decenotin", "calcium tablets", "oxytetracycline" and other drugs mixed bait Feeding, 1 time per month, 0.5% of the feed per use. about.
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