First of all, we must strengthen the autumn feeding management. In October of each year, bean dregs, pigs and sheep blood are mixed and put into containers for natural fermentation, attracting fly to lay eggs. After 5 to 6 days, the mites are hatched in large numbers and climb out of the vessels. Feeding. At the same time, several lights can be turned on at night in the breeding farms to attract insects to gather and feed them to make them strong before winter. Second, winter protection must be carried out. Before the winter, outdoors, several trenches should be excavated in the middle of the farm or in the surrounding area. Stocking 10 to 30 eggs per square meter of water. If icing is found during the severe winter season, the ice should be broken in the morning to facilitate the dissolution of oxygen into the water. Use cylinders, pots, buckets to add water to a depth of 20 cm, and then put in the pot. Indoor wintering should prevent the room temperature from being too high, resulting in lack of hibernation, so as to keep the water temperature at 1°C~8°C. If you use a plastic film greenhouse winter, when the temperature is maintained in the shed at 1 °C ~ 10 °C.
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