Mud warm shed efficient holding technical points
Mud prices in the winter and spring seasons are much higher than those in other seasons. Therefore, it is a good fortune to build a warm shed in the winter to keep the mud in the winter and sales in the spring.
First, the installation of greenhouses depends on their own conditions, according to the method of building a vegetable greenhouse erection, the size of plastic greenhouses can be. There is a single layer or double layer structure, the material can be selected bamboo poles, steel frame structure available conditions, in addition to the need for straw curtains, cold weather in winter to cover the insulation above the plastic greenhouse. If there is a vegetable greenhouse, it can be used with a little modification.
Second, build a temporary holding pool warm shed built cement holding pool, concrete pool area of ​​50 to 100 square meters is appropriate. The holding pool shall be built on the ground, underground and semi-subsurface types, and shall have an inlet and outlet. The pool shall be 1.2~1.5 meters deep, with a drainage outlet at a distance of 30 cm from the bottom of the pool, and shall be installed with anti-escape facilities. The water depth shall be 0.8~ 1 meter. Before stocking the loach, put 10-20 cm thick fertilizer in advance. The hatchery was used to disinfect the culture tank 10 days before stocking. After 7 days, 0.3 to 0.5 kg of livestock manure was placed per square meter. A few days later, when the water turns yellow-green and the transparency is 15 to 25 centimeters, the loach can be released.
Third, mud loach stocking mud requirements of a strong physique, disease-free injury, swimming and lively. For the muddy time that is too long to be raised, it is not advisable to purchase muddy mud that has a short holding time, which is generally not more than 1 to 2 days. The loach in the pool can be filled at a time or it can be delivered with it. Before restocking, fish must be disinfected and soaked in mud for 3 to 5 minutes with 3% to 5% saline to prevent watery mildew and eliminate surface parasites. Stocking densities range from 5 to 10 kilograms per cubic meter of water. As the stocking rate increases, the fish body will increase in weight and the pool water may be increased to 1 to 1.2 meters. Those who have conditions can maintain micro-flowing water in the pool and have better results. When the mud enters the pool, it is also necessary to prevent the temperature difference from being too large, so as to avoid causing death from mud and cold.
Fourth, promptly fertilizer fertilizer water temperature above 20 °C is the key period of fattening fertilizer, should be fully fed fertilizer. At temperatures above 15°C, muddy foods are still eating well, and feeding can not be relaxed. When the water temperature is 10 to 15°C, feed at least once a day. During this period, the ratio of feeding of animal feed should be increased, and a small amount of compound amino acids and vitamins should be mixed in order to increase the utilization of feed for the loach. Loach can be eaten at temperatures above 10°C. When the water temperature is lower than 10°C and there is still muddy uplifting at noon on sunny days, a small amount of feed should be adhered to.
Fifth, feeding and management loach is omnivorous, natural foods are small crustaceans, aquatic insects, snails, cockroaches, animal organs, algae, rice bran, bean dregs and so on. When feeding, pay attention to the proper mix of animal and plant foods. Feeding and feeding should be done four times (quality, quantity, timing, positioning). Water temperature above 30 °C or below 10 °C can not cast. In rearing, pay attention to fertilization. Sprinkle manure once every 4-5 days to Dianchi Lake, 50-100 grams per square meter, keep the transparency of water body 15-25cm, change water in time, and change the water in the muddy pool every week. Times, change the water 30 centimeters each time. If there are microfluidic conditions in the pool, it is not necessary to constantly change the water, but to prevent deterioration of water quality. Sun pools should always be filled with tap water to ensure sufficient water supply. The pond will exchange new water every half month. The amount of water exchanged is one-third of the total water volume, and the water depth of the pool water is maintained at about 1 meter.
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