Turtle carp polyculture

In the past few years, in the rural areas of China, many farmers established a simple garden-style plastic greenhouse to raise oysters, but due to the drastic changes in market conditions in recent years, these small-scale cultivations basically All of them are affected and the breeding industry is unsustainable. As a result, many plastic greenhouses are idled or abandoned. In response to this situation, researchers have developed a new technology for polyculture of turtle carp, which is to fully utilize or remodel these courtyard-style plastic greenhouses for polyculture of turtle carp, which not only improves the utilization rate of fixed assets, but also can be based on the market. Demand, flexible replacement of farmed species, increased economic efficiency. To this end, the turtle polyculture technology that they have developed is introduced as follows:

I. Construction of turtle turtle polyculture pool The turtle polyculture pool ranges from 25 to 200 square meters. The walls of the pool are made of masonry walls and cemented surfaces. There should be no rat or snake caves around. The pool depth is 1.3 meters to 1.5 meters and the water depth is 0.7 meters to 1.0 meters. The drainage channels can be covered with prefabricated panels or other hard sheets. In the pool pool around earthen ponds, an anti-escape wall with a height of about 0.5m to 0.7m is built. The top of the wall has a "T" type to prevent fleeing, and the width is 10cm to 12cm. All the walls are plastered with cement and the corners of the walls should be curved.

Shelling tables, feeding stations, and inhabiting land are indispensable facilities for turtle ponds. The feeding station is located above the outlet, and the bait that sinks into the water can drain out of the pool quickly. In order to save the water surface, drying shell and feeding table can be used together. In addition, put some more planks in the pool as a habitat for turtles and badgers.

The courtyard plastic greenhouse is covered with a plastic film and its shape is mostly arched. From the perspective of raising the temperature and keeping warmth of the turtles in the courtyard, greenhouses are less effective than greenhouses, and their service life is short. However, the economic benefits of greenhouses are more appropriate for rural farmers. The skeleton of the greenhouse can be constructed of wood, bamboo or cement.

The heating equipment of the courtyard type turtle polyculture pool is usually a small-sized atmospheric pressure water heating boiler. A heated circulation pipe is installed in the pool to allow the warm water to circulate in the pipe, and the water temperature can be maintained at 24°C to 30°C.

Second, the turtle carp into the pool Turtle carp before entering the pool to be disinfected, the commonly used disinfection items are lime and bleach. Quicklime: If draining pool water, use 50kg to 75kg per mu; if you keep the water depth of 1 meter, use 125kg to 150kg per mu. Bleach: 1 meter deep water per mu, with 13 kg to 13.5 kg. When it is used, it must be strictly spilled on the land and completely disinfected. After about 10 days, when the toxicity disappears, it can be stocked.

Third, the stocking density of juvenile tortoise 40/m2 to 50/m2 is more appropriate; 2 instar turtles 30/m2 to 40/m2; 3rd instar turtles 20/m2 to 30/m2 ; Juveniles 40/m2; Cubs 30/m2. Because the polyculture pond contains a large amount of metabolites from turtles, on the other hand, there is inevitably a residual bait deposit. This makes the water quality become fat and can breed abundant plankton. Therefore, when the turtle roach is polycultured, It is advisable to use fertilized fish, and the input density is preferably 45% of a single fish.

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