青虾养殖（The shrimp）.docVIP

青虾养殖（The shrimp） A pond of shrimp, shrimp pond condition (a) high oxygen consumption, not resistant to hypoxia, and benthic animal, swimming ability is poor, often at the bottom of the pool or shore activities, so the requirements should not be too large or too small pond area, generally 2~5 acres should be close to the best, in the water, the water source is sufficient and fresh water. Pool water should not be too deep, generally 1 to 1.5 meters is appropriate, in order to facilitate light and increase dissolved oxygen. A shallow pool slope to foot large, easy shrimp feeding activities. The pond is made of regular rectangular shape, with flat bottom and easy operation. Sludge at the bottom of the pool should be about 20 centimeters. Poolside can grow some aquatic plants for shrimp habitat and molting hidden. Cleaning ponds generally start in early March, draining water, remove the excess sludge, make furrow check into the drainage. Let the bottom exposure, promote the decomposition of organic matter of the bottom of the pool, improve the fertility of shrimp ponds. In the stocking pond should be the first to use Croton or tea seed cake completely during the disinfection, Croton dosage is 45 ~ 75 kg / ha, 10 days can put shrimp; tea seed cake was 600 ~ 900 kg / ha, 7 days after the release of shrimp, we must first test the water before put shrimp, proved to be non-toxic before. (two) seed stocking some shallow pond or shallow water marsh, can shrimp monoculture, the effect is also very good, but the deep pond, sewage pond straight monoculture. The pond with fish, shrimp or fish polyculture, shrimp polyculture. Shrimp ponds in 6 ~ July year stocking shrimp cultivation, every 667 square metre 40 thousand ~ 50 thousand tail (specifications 2000 / kg 5000 tail). 11~12 months catch, catch big stay small, and then put a certain amount of young shrimp, raised to the next 5~6 months, catch again. The polyculture pond shrimp, and the shrimp in the every 667 square meters can