2, seed source summer flowers are self-breeding self-breeding. Green shrimp seedlings are purchased in the autumn of other Tangkou. The deducted crab was purchased from Qidong and the V-phase juvenile crab was the large-eyed larvae purchased from Guannan on April 24th using a factory-controlled temperature-raising larvae boiler surplus gas, which was successfully cultivated in a plastic greenhouse.
3, seedlings stocked in December 12 months, put 8 kg of shrimp seedlings, in the following year of March the following year, 120 kg/kg of crabs were stored in the acre, and 1,000 pigs of V phase were put at the end of May. In the end of June, 500 acres and 500 flowers were planted per mu.
4, feed the fish feed every day from 8 to 9 when the fish feed, rapeseed cake-based, fixed feeding. Feeding shrimp and crabs in the evening, pre-major dumping of dead fish such as fresh fish, and mid-term feeding of corn flour and bran, feeding animal feed, increasing the amount of bait after mid-August, investing in aquatic plants, squash and hawthorn And animal organs, skin and so on. The amount of feeding depends on the weather and food intake.
5, water quality management often add water, keep the transparency of about 35 cm, so that the water quality to "fertile, live, tender, cool" high-yield requirements.
6. Disease Prevention During the rearing period, every 20 days, about 20 kg of lime are used per mu. After being dissolved, it is splashed with water and splashed on the whole pool. It has certain effects on preventing fish and shrimp crab disease and promoting shelling of shrimps and crabs. At the same time, some dehulling substances, vitamins, terramycin, and furazolidone can be regularly added to the diet to enhance the body's health, prevent diseases, and find that water, snakes, frogs, mice, birds, and other predators must be promptly driven and captured. And kill.
Study on Polyculture Technology of Pond Fish, Shrimp and Crab
1. Pond conditions The pond is developed from waste rivers, with an area of ​​8.7 mu and a water depth of 1.8-2.2 meters. The water quality is good, and the water inlet and drainage are convenient. There are a lot of plants, including Vallisneria, Hydrilla verticillata and duckweed, which cover about 2/5 of the pond area. The pond is surrounded by calcium plastic plates. In the month before release, 4 kg of sodium pentachlorophenolate was used per acre to completely kill the wild fish.
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