(A) The biological characteristics of the grasshopper The grasshopper is a dual-use insect that is both medicinal and edible. It is oviparous and belongs to the order Orthoptera of the Insecta class. According to statistics, there are a total of 859 species of grasshoppers, but there are only two species that can be used as medicines for feeding, namely, East Asian fly grasshoppers and Rice flyhopper grasshoppers. Grasshopper is rich in protein, carbohydrates, insect hormones and other active substances, and contains vitamins A, B, C and phosphorus, calcium, iron, zinc, manganese and other elements. The grasshopper is not only a delicious food, but also a good medicine for curing diseases. The use of grasshopper alone or in combination can cure a variety of diseases such as tetanus, convulsions in children, fever, and asthma. Grasshopper dioecious, natural mating, oviparous, under natural conditions for 2 generations of breeding 1 year, namely summer and autumn. (b) Construction of the grasshopper breeding shed The breeding shed should be built in a place with good ventilation and ventilation. The ground of the shed should be about 10 cm higher than the surrounding ground for drainage. The soil is preferably sandy loam to facilitate the production of grasshopper eggs. Monocotyledonous plants such as wheat or corn are used to prepare the grasshopper. The construction area should be determined according to the number of grasshoppers. Each 10,000 grasshoppers need about 15 square meters. Shelf brackets should be constructed with angle irons, wooden sticks, etc., and then the size of the shed should be used to make the shelter cover with gauze. Buried underground, leaving the doorway, and zipping at the door to prevent the grasshopper from running out and people out of the shed. The height of the shed is 1.5-2 meters, which is suitable for heat preservation and rain protection. The shed can be covered with plastic sheeting. In the natural conditions of breeding grasshoppers, the construction of the shed must be completed by the end of April. (III) Feeding and management of grasshopper The appropriate development temperature of the grasshopper is 25～32°C, relative humidity is 85%-92%, soil moisture content is 15%-18%, below 14°C or higher than 40°C. He gradually died from eating. When the temperature reaches 28 to 30°C, the eggs of the leech start to hatch. Prepare non-toxic soil and sawdust powder to stir 1:2. The water content is 20% to 30%. Shop 3 to 5 centimeters of soil in the vessel. , and then the grasshopper eggs on the soil, covered with about 1 cm thick mixed soil. Finally, the container is covered with a layer of film, checked once every half-day, and after the small grasshopper is found, it is brushed onto the food in the shed with a soft brush, and a small grasshopper is hatched after 10 to 15 days. The newly emerged grasshopper eats fresh wheat seedlings, corn seedlings, weeds and other monocotyledons, but the food intake is very small. 1 to 3 years old leech should pay attention to rain, leech from the unearthed to adult about 27 to 35 days, this period every 5 to 7 days, 1 times the skin, a total of 5 times; 5 grasshopper after the gradual start Mating eggs, each leech about 70 to 100 eggs. In order to feed and reproduce the eggs, the grasshoppers like to live in groups and migrate. Therefore, after the emergence of the grasshoppers, they should be given appropriate disturbances before spawning to allow them to migrate in order to increase the quantity and quality of spawning. Eggs produced before the upper frozen in the spawning area should be covered with some wheat bran, weeds and other insulation, moisturizing, to prevent freezing. Growing adult leeches are sold in time if they are not planted.
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