1, breeding pond construction and remodeling. Taking into account the stability of the greenhouse device and convenience, breeding ponds as far as possible for the ditch-shaped rectangular. Newly excavated ponds according to the ditch-shaped rectangular excavation can be, the old pond transformation can be set up to build ridges and slopes, to create conditions conducive to the setup of greenhouse devices. Pond specifications and requirements are: width (i.e., span) 5 to 8 meters, 30 to 50 meters long, 50 to 70 centimeters deep, the pool slope ratio of 1:1.2 to 1.5. conditions, in the pond fixed 1 to 2 micro-porous oxygenation tubes, for oxygenation. Pond construction and renovation after clearing the pond and fertilization, filtering the water intake, transplanting or stocking water hyacinth, water peanuts, Ileaginous algae and other water plants.

2, trellis device. First of all, prepare a good bamboo or bamboo slice, cut the bamboo or bamboo slice on the section of the thorns, the bamboo or bamboo slice along both sides of the pond at equal distances from the buried * (moso bamboo, bamboo slice spacing is generally 1.5 ~ 2.5 meters, depending on the strength of the material), in the pond will be on both sides of the bamboo or bamboo slice of the relative bending with the tape firmly, the formation of an arch. Arch-shaped moso bamboo or bamboo pieces on the shelf beam, with tape firmly, beam density depending on the strength of the arch. In the middle of the pond piling paving moso bamboo across the board to the two ends of the pond, easy to cast bait in the shed and, pile 10 centimeters above the water surface can be. Finally in the trellis on the plastic film. Plastic film is generally laid two layers to ensure the effect of heat preservation, the two ends of the pond with plastic film surrounded, leaving a small door to facilitate the entry and exit of managers. Installation of micro-porous oxygenation pipeline pond outside the shed near the original electric installed an air pump connected to the oxygenation pipeline can be at any time to increase oxygen. Shed frame materials can also choose to do a good job of manufacturers of cheap hard materials, farmers can choose their own.

3, seed stocking. Freshwater crayfish greenhouse culture seed stocking there are two kinds. One is to stock shrimp seedlings, downstream areas of the seedling stocking time is generally in early October or so; one is to put commercial freshwater crayfish stocking, stocking time is generally around the end of November, stocking cycle according to the market situation to decide. Seedling stocking density: specifications for 60 to 100 tails / kg of seedlings per mu to put about 25 kg; specifications for 30 to 50 tails / kg per mu to put about 50 kg. Stocking method: the seedlings to be placed with shrimp and crab disinfectant or 3% to 5% salt water disinfection, evenly placed in the pool side of the water plants.

4, feeding management. Freshwater crayfish greenhouse farming feeding depending on the temperature of the water body, water temperature in the range of 20 ~ 25 ℃, can be fed once a day before and after noon, baiting rate of 3% to 4%; water temperature of 15 ~ 20 ℃, can be two days of feeding once, feeding time is also in the midday when the temperature is higher. Management in addition to the same as the management of the normal season breeding, but also pay attention to: First, the dissolved oxygen of the water body. Fitted with microporous oxygenation, to open the oxygen at the right time, there is no mechanical oxygenation device, the water body lack of oxygen, we must use chemical oxygenators in a timely manner. Normally at noon during the day, the shed will be opened at both ends of the small door ventilation, the shed also has the effect of increasing oxygen. Second, the temperature in the shed. Especially at night when there is no light, you can cover grass curtains on the shed surface to ensure the temperature inside the shed. The third is to pay attention to the changes in water quality, the conditions can be applied to microbial agents to maintain water quality.