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Crab Pool Codfish Technology Introduction
Raising the carp in the crab breeding pool, the two do not disintegrate, and have synergy and promotion functions: Wild fish use crab bait, carp prey on wild fish, low value fish in exchange for high-quality fish At the same time, it solved the problem of wild fish and river crabs fighting for food and fighting oxygen, which is more conducive to the growth of crabs. The squid stocks 10-20 fish per acre, yields 5-8 kilograms per mu, and the net profit reaches 150-200 yuan. Compared with the ponds of single raising crabs, the carp not only increases the production and income of carp, but also the size and output of the crabs. With an increase, the average specifications can reach about 150 grams, and the yield can be increased by 5 kilograms, achieving significant ecological and economic benefits. The pros and cons of carp seedlings are the preconditions for the success of carp nesting. It is required to use locally cultivated fish species. Although purchased at a low price, outsourcing is due to a lot of diseases, long transportation time, and low survival rate. The first is the quality of good seeds. The main approach is: 1 to buy high-quality seed. Requires strong physique, strong mobility, no disease and no injury. 2 shorten the transport time. The length of transportation time is directly related to the survival rate of seedlings. 3 specification pond operation. First, the seedling bag is soaked in the tank for 2-3 minutes to adjust the temperature of the water in the bag and the pool water. The stocking time is mid-to-late May and the specification is 4.5-5.5 cm. Followed by water quality management is to adjust the "new", that is, injection of new water, 5-7 days of water injection once, 10 days and a half months of water change, high temperature season, water injection 20-30 centimeters per day, 3-5 days to change the water once. The second is to adjust "excellent", using quicklime, Quanchiposa method every half a month to once a month, mu dose (1 meter water depth) 10 kilograms.