Selection of pond: the water source for crayfish culture requires fresh water, sufficient dissolved oxygen and no pollution. The ridge width of the pond is more than 3 meters, and the pond area should not be too large, generally 3-8 mu. It is worth noting that crayfish have strong escape ability and need to build anti-escape facilities.
Cleaning and disinfection: Cleaning and disinfection can effectively kill enemy organisms (catfish, loach, snakehead, snake, rat, etc. ) and wild miscellaneous fish (carp, etc. ) competing for food. Crucian carp, etc. ) and pathogens, you can use quicklime and bleaching powder.
Planting aquatic plants: Aquatic plants play an important role in lobster culture, generally accounting for half of the pond area. Low-stem reed, water bamboo, etc. Optionally, there are some empty cans, bamboo tubes, roots and so on. You can put it at the bottom if possible.
Extended data:
Precautions for users to raise shrimp:
1, pay attention to environmental conditions. The farm requires quiet environment, sufficient water, good water quality, independent and complete water intake and drainage system and no pollution source. It is best to choose a new pond, and the old one should be cleaned and exposed to the water. The area of each pond is generally 3- 10 mu, the slope ratio 1: 3, and the water depth 1.5-2 meters, with supporting aerobic facilities.
2. Pay attention to pond disinfection. Disinfect the seedlings with drugs 20 days before sowing. First, dry spray bleaching powder with hydrogen content above 30% in shallow water, with the dosage of 5-6 kg per mu; The next day, 75 kilograms of quicklime was sprinkled per mu, and the quicklime was mixed into the pond sediment with a rake.
3. Pay attention to the source and stocking of shrimp seedlings. Before buying young shrimps, we should check the breeding units and check the quality of nauplii and young shrimps. The young shrimps we buy must be healthy, tidy, robust, sterile and non-toxic, so as to ensure the success of reproduction. At the same time, 80- 100 silver carp and silver carp can be mixed in each acre of adult shrimp pond.
4. Pay attention to setting hidden objects and planting aquatic plants. Young shrimp culture ponds and adult shrimp ponds should be equipped with hidden objects and submerged plants.
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