Efficient breeding with high yield and efficiency

1. To build wintering ponds over the winter pool requires east-west direction. The area of ​​120 to 200 square meters. It is 20-25 meters long. 6-8 meters wide. Deep 1.5 ~ 2.0 meters. The cement floor was plastered after the basement and surrounding walls. There is a wall on the north and south sides of the fish. That is, the northern wall and the south wall. The height of the northern wall is 1.5-2.0 meters, allowing a one-meter passage from the edge of the pool to facilitate boiler placement and operation: the south wall is close to the edge of the pool. 0.5 meters high. Between the north and south walls, use slender logs or bamboo. Made of semi-circular or back-shaped frame, with thin bamboo or 12 wire. According to the spacing of 0.8-1.0 meters, horizontally and vertically tighten the fixed frame. Lay a plastic film. Then fix a 20 cm high wooden pole from each side of the ridge. Between the two columns and then by 0.8-1.0 meters spacing tightly. And fix the 12th wire. Laid the No. 2 plastic film. After every leveling, a plastic strip is pressed every 3 meters, and the heavy stone is firmly attached at both ends. There is a space of 20 cm between the two plastic films so that the insulation and warming effect is better. 2. The overwintering pool in wintering pond requires a water depth of 0.8-1.0 meters and a fish load of 40-50 kilograms per square meter. In mid-September, when the water temperature is around 16 degrees, the carp is caught, and about 500 grams of fish is put into the wintering pool. . Can also be sold after the winter. Overwintering pool natural temperature and temperature time, from mid-September to mid-to-late October, the second year from mid-March to May. During this period, the natural temperature-increasing fish can feed normally, which can extend the growing period of 3-4 months. From early November to early February. Enable boiler heating to keep the pool water temperature above 16°C. The bottom of the boiler inlet should be connected to a 550-watt self-priming pump, into the pool water, the upper outlet connected to a diameter of 50 mm hose in order to adjust the heat transfer water into the pool position, so that the pool water temperature uniformity. The general boiler burning time is from 8:00 to 11:30 in the evening and from 5 to 9 in the day. Burns for about 7 hours every day and night. The specific opening time is also based on weather forecast and water temperature conditions. The temperature of the hot water flowing from the boiler is about 30°C. The water temperature is higher, and the trout will still take a small amount. Should be fed chicken intestines, etc., according to the fish weight of 1% to 2% feeding. A new water is rushed every 15 days. Water injection is about 20 cm. Boil the boiler for more than 2 hours before filling. Water temperature drops sharply. Every 15 to 20 days. Sprinkle with lime water once. Make the ground water concentration of 20 grams per cubic meter. According to this "seasonal difference model" breeding, investment is small. Low cost, high yield, and high efficiency. The output per 667 square meters (1 mu) can be increased by about 1000-1500 kg, and the economic benefits can be significantly improved.

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