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Outdoor natural breeding
Outdoor natural law breeding eels have the characteristics of high survival rate, extensive management, low investment and high yield, which is very suitable for promotion in rural areas. In the market, we must choose the leeward and sunny, away from the sources of pollution, the soil is slightly acidic or slightly alkaline soil or sandy loam. (1) After the establishment of the Dianchi Lake, the Dianchi Lake can be built according to the size of the breeding scale. Generally, 200 to 600 square meters are appropriate. The walls of the pool are a wall made of brick and cement. The wall is divided into Two parts, the ground part and the underground part. The underground part can be excavated with a depth of 60 to 70 cm in width. Viscous heavy soil shallow depth. The shasong soil is deeper, and the outer wall of the trench is set against a brick wall, and the wall is filled with cement. The height of the ground is about 70 cm. Inside and outside with a cement leveling, and finally in the top of the wall flat pressure 26 to 28 cm wide glass strip, the top of the wall extending from the outside is 6 to 10 cm. The wall should be provided with a door that is convenient for workers to enter and exit. It is about 1 meter wide. Surrounding the wall to stay out of the outlet, when not covered with glass, in case the mule escape. (II) After the establishment of the pond, the first step is to plough and level the land, and then set the pods. The ratio of pods to vacant land in the pool is 1:1.5. That is, a row of 60-80 cm wide corpus callosum is arranged every 1.5 meters or so, and the corpus callosum is arranged relative to the free space. The width of the corpus callosum is 60-80 cm, and the length is determined by the size of the pond. When the corpus callosum is placed in the yard, the northern China is usually digging about 24 centimeters so that the dipper can shift downwards when it sleeps in winter. The body brick is vertical and horizontal, staggered, and 1.5 to 2 cm of space is left between the brick and the brick, 50 to 60 cm high (above the ground), and about 10 cm in height around the base, the top of the carcass Cover with a cement board or other waterproof material to prevent rain from leaking into the armpits. (3) Collocation of symbiosis bases The most important feature of outdoor open-air ponds is that they can grow some short culms or pod-grown plants on the open space in the pond to attract a variety of insects for breeding. Some feeds can also be put into the pond for cultivation. A large number of pests, rodents, maggots, and earthworms, etc., which are eaten by lice, are used as a natural source of medlar. (4) Problems that should be paid attention to when planting a symbiosis base (1) Plants with high stalks cannot be planted, so as not to be conducive to predation by scorpions and to avoid causing the armpits to become too damp and damp. (2) It is necessary to scientifically and reasonably arrange intercroppings so as to maintain the evergreen season in Dianchi and ensure the continuity of the sources of foodstuffs. (3) Absolutely no nitrogen fertilizers and pesticides should be applied, and no other chemical fertilizers should be applied as far as possible to create environmental conditions conducive to the mass reproduction of insects and to avoid causing poisoning. (4) The density of the seed to be introduced should be appropriate. Generally about 100 seeds per cubic meter are appropriate. When the population density is too large, feed must be added to the pool on a regular and timely basis according to the specific situation. (5) Feeding and management Natural breeding of storks outside the narrow area, due to the great differences in climate throughout the year, the management of crickets varies with seasons. After the winter scorpion has hibernated, her body is very weak, and the sudden drop in temperature caused by the cold flow causes her to become a weak, physically weak, young cub, and is prone to dry or lyophilized deaths. Therefore, the windbreaks and insulation coverings of the armpits cannot be dismantled prematurely in the early spring to maintain the moisture in the armpits. After the Ching Ming and Ming dynasty, there are more and more scorpions that move out of the cave at night. At this time, the soil moisture content in the activity area is appropriate for 15%-20%, and the relative humidity for air is 70%-80%. At noonday, use 1% potassium permanganate water at 40°C to sprinkle water on the venue, walls, and ground to adjust air humidity and sterilize the site. In addition, the early spring scorpions are only active during the warm and windless day, they are rarely active at night and they need to be served. After the beginning of summer, the natural conditions of temperature and humidity have reached the normal demand for earthworms, which is the most vigorous season for breeding and development of earthworms. It is also a key moment for management. It should be noted that water is often sprayed on the carcass inside the pond to reduce the temperature and increase the humidity, so as to ensure the temperature and humidity in the area where the pupae are active. Spray water once in 2-3 days in the hot season, so that the soil moisture content is maintained between 20% -30%, and the relative humidity of the air is between 75% and 85%. Pay attention to drain water in the net area immediately after the rain. After the beginning of summer, the digestive abilities of wolfberry fruit increased at an unprecedented rate. At this time, crop insect pests in the breeding area are not enough to eat. In the evening, insects such as nightflies, mosquitoes, leafhoppers, and cockroaches can be seduced by black light lamps to allow them to feed freely. You can also feed some live insects. After the autumn equinox, the food intake of all ages surged and the metabolic process was relatively strong. In the management, the following points should be emphasized: (1) Increase the food supply, in addition to natural insects, feed some meat-like feeds. It is better to have more than enough. (2) To reduce the amount of drinking water in the dumplings and stop direct water supply. The scorpion's habitat can be controlled at 8% humidity, if the activity site is too wet to sprinkle some dry weathered soil, adjust. (3) picking out the weak, old, weak, and stubborn to lose their ability to reproduce. After the frost falls, as the temperature drops, all ages gradually enter the hibernation phase until the time before the rainy season. The emphasis is on the prevention of cold and rodent control in the breeding area, making it safe for the winter, and using winter time to repair Protective equipment and all appliances used in the area.