A few days ago, Shaanxi Agriculture and Forestry Satellite TV broadcasted the story of centipede breeding's becoming rich. Do you know if he is real?

Centipede is commonly known as centipede, also known as Tianlong. It belongs to the arthropod phylum, a polypod. It is 8-25 cm long, with a pair of antennae on its head, 2/kloc-0 joints and 2/kloc-0 feet. The first pair forms a sickle-shaped poison palate with poison glands. Under artificial feeding conditions, sexual maturity is about 6 months. The mature centipede is 1 1- 14cm long and 5-1/cm wide, with a slightly flat back and abdomen.

1. Medicinal value and breeding prospect of centipede

According to the research of relevant experts, centipede contains two effective components similar to bee venom and many substances such as tyrosine, leucine and formic acid. Has the effects of expelling pathogenic wind, relieving spasm, resisting cancer, removing toxic materials, resolving hard mass, dredging collaterals and relieving pain. It is one of the important raw materials of Chinese patent medicines such as "Paidu ointment" and "snake tablets". Modern medical research shows that centipede can treat infantile convulsion, mouth deviation, convulsion, tetanus, alopecia and so on. China is the origin of centipede and enjoys a high reputation abroad, especially in Southeast Asia and other countries. The local centipede is called "Golden-headed centipede", and its main producing areas are Huayao, Anfu Temple, Baiyang, Gujiadian, Yaojiagang and Gubei, especially Huayao. In the past, centipede was mainly used as medicine in the wild, but with the continuous expansion of centipede application and the continuous reduction of wild resources, the supply of centipede was very short. Therefore, the prospect of artificial breeding centipede is very broad, with less investment, quick effect, easy feeding and more profits, which is a way to prosper rural economy and increase farmers' income.

Second, feeding management technology

1, build a culture pond

The centipede has a strong climbing ability, but it can't swim. According to this characteristic, it can be designed as a circulating water feeding pool, a glass eaves feeding pool, etc.

2. Eating habits and drinks

Centipede is a typical carnivore. It likes all kinds of living insects, such as crickets, locusts, Tenebrio molitor, dragonflies, cockroaches, flies, bees and their pupae and eggs. It also eats spiders, earthworms, snails and geckos, snakes, frogs, birds, mice and so on. When it is hungry, it will also eat a small number of tender leaves and buds of plants.

Step 3 manage

The centipede captured from the wild as a seed can be selected to be robust and harmless. Too high density, too much disturbance, or insufficient feed and water will all cause cannibalism. Stacked tiles and stone piles shall be stacked at a bottom surface area of 300 pieces per square meter.

Third, reproductive technology.

Centipede lays eggs once a year at room temperature. If it can be raised at a constant temperature, it will break the routine of laying eggs twice a year. Scolopes have the habit of incubating eggs and brooding. Scolopendra sexually matures for 3 years at room temperature, and spawns at constant temperature 1 year.

Second, the enemy's harm and disease.

The main enemies of centipede are mice, toads and ants. Centipede is in a semi-sleep state during molting and hatching. If it is invaded by ants, it will be eaten in a few hours, and it is necessary to prevent the injury of chickens or birds.

Three. Capture, processing and grading

Capturing artificially cultured centipedes in September-65438+1October as required, scalding centipedes with hot water, squeezing out intestinal contents from beginning to end with fingers, taking bamboo sticks with the same length as centipedes, sharpening both ends, inserting one end into the first section of the head and trunk from the ventral surface, and the other end into the tail, propping up, and then clamping 10 strips in rows with thin bamboo.

The finished product should be dry, with complete head and tail, shiny strips, no damage, no moth and no mildew. The length of each super product is greater than 15 cm, the length of first-class product is greater than 12 cm, the length of second-class product is greater than 9 cm, and the length of third-class product is greater than 6 cm.

Fourth, matters needing attention

Centipede breeding is simple and easy to operate, but every summer, with the increase of temperature and humidity, improper management will also affect the normal growth of centipede.

1, feed supply is sufficient. When the temperature is about 25℃, it is the most suitable growth stage for centipede. When the temperature is above 30℃, the activity of centipede is the largest. With the increase of activity, the molting period is shortened correspondingly, and the spawning, hatching and growth and development are greatly accelerated. At this time, it is necessary to fully supply enough feed, mainly meat and high feed in protein. Of course, centipede's favorite foods are insects, flies, earthworms and Tenebrio molitor.

2. Drink plenty of water. The artificially cultured centipede should have enough drinking water in the breeding pond, otherwise once there is water for a few days, the centipede will drink too much and die. When the temperature reaches 35℃, if the water supply is not paid attention to, the centipede will be dehydrated and paralyzed and die.

3. Disease prevention. In summer, germs multiply a lot, especially diseases caused by mold are more frequent. The key to prevention is to adjust the temperature to prevent moisture. Therefore, while doing a good job in heatstroke prevention and cooling, we should pay attention to properly controlling the amount of water spray to achieve multiple sprays. In addition, centipedes are strictly prevented from eating rotten and moldy food.

First, living habits. Under natural conditions, Wu Ye usually lives on hillsides, fields, roadsides or overgrown places, or beside wells, wooden stakes and cracks in bricks and tiles, especially on wet and ancient ground. The basic characteristics of activities are daytime activities and going out at night. Stop eating when the temperature is lower than 10℃, and enter hibernation at MINUS 7℃.

Second, the characteristics of reproduction. The life span of centipedes is only 6 years. After sexual maturity, they usually mate in the early hours of Chu Qing after rain in March-May and July-August, and begin to lay eggs 40 days later. The female centipede lays the fertilized egg on her back in order to hatch in time. Each female centipede ovulates for 2-3 hours at a time and lays 80- 150 eggs at a time. The egg surface is rich in mucus, and the eggs stick together to form egg blocks. During the incubation period, the female centipede does not eat or drink until the young centipede hatches.

Third, feed. Centipede is a typical carnivore with a variety of feeding habits. It especially likes to eat all kinds of insects, such as Tenebrio molitor, crickets, scarabs, termites, cicadas, dragonflies, spiders, flies, bees and their eggs, pupae and larvae. At the same time, they also eat the meat, viscera, blood and cartilage of worms, earthworms, snails and various livestock and aquatic animals, and also eat Shui Pi, potatoes and cartilage.

Fourth, the construction of aquaculture ponds. The artificial culture of centipede can be carried out in ponds and ponds. Use worn-out clay pots or ceramic pots, preferably with a diameter of more than 0.5 meters, buried face down in the soil for about 20 centimeters, and compacted the soil outside. The middle of the cylinder is built with brick or adobe, which is about 10 cm lower than the cylinder surface, and there is a certain gap between the adobe and the cylinder wall. If you use a complete cylinder, don't knock off the bottom, just build adobe in the cylinder. A tank with a diameter of 80 cm can hold about 200 adult centipedes.

When adopting pond culture, the culture pond should be built in a sunny, ventilated, convenient drainage, damp and quiet place. It can be built indoors or outdoors. Made of bricks or stones, leveled with cement, the height of the pond is 80 cm, and the area of the breeding pond is arbitrary, generally 5- 10 square meter is appropriate. Stick a layer of smooth and undamaged plastic film on the inner side around the pool mouth, or set a circle of inner eaves with a width of about 15 cm and at right angles to the pool wall with glass sheets. 500-900 adult centipedes can be put into each square meter of culture pond.

Five, management points. 1. In order to prevent the centipede from escaping, the centipede is impatient. If preventive measures are not in place, centipedes can easily escape. 2. Pay attention to the feeding density. Scolopendra must be fed in groups and pools according to the change of body length. 3. Manage temperature, humidity and light to keep the environment quiet. 4. Feed should be kept clean and hygienic, and don't feed bait contaminated by pesticides. 5. Observe regularly to prevent natural enemies of centipede from entering the culture pond. 6. Prevent food and soil from becoming moldy. 7. Eliminate diseased centipedes in time.

Accurately master the living habits of centipedes and create the best environment in centipede breeding.

Scolopendra mainly lives in rocky and low-lying areas, and only a small amount is distributed in plain areas. After the annual fright, the temperature turned warmer, the centipede woke up from hibernation and began to be unearthed, living well in wet weeds or rocky ditches. From awn seeds to summer solstice, as the temperature rises gradually, it gradually moves to the gap of sewer, graveyard, ridge or ridge to avoid the hot day. In late autumn, they often live under the loose soil slope with sunny leeward or in the place where tree holes and roots are warmer. In a word, centipedes like to live in dark, damp, warm and ventilated caves. According to this habit, we have built a reasonable breeding pond, and the actual inspection shows that the breeding effect is good. Please refer to the video for specific construction methods.

Accurately grasp the activity characteristics of centipede and choose the best feeding time.

Scolopes usually come out at night, and their activities peak at 20 ~ 23. It is characterized by more activities at night and less activities during the day; The activity is more when the temperature is higher than 25℃, and less when 10 ~ 15℃. There are more activities at night after rain, and less activities at night on rainy days; There is more activity when there is no wind or breeze at night, and less activity when there is strong wind at night (wind level 6 or above). It can be seen that the frequency of centipede activity is closely related to meteorological factors such as temperature, air pressure, relative humidity, rainfall and light intensity.

According to the above characteristics, the centipede's feeding should follow certain rules, not invariable. The rules that must be followed are as follows: generally, the centipede is fed at a fixed point on the eve of sunset, so that the centipede can form a conditioned reflex and cultivate the regularity of eating, while not violating the laws of nature. On a sultry night after the rain, centipede activities are strengthened, and its appetite is better, which can increase its food intake in time; In severe weather such as strong wind or rainy weather, the feeding amount should be reduced or even not fed. In a word, we should fully consider the influence of meteorological factors on centipede activities and feed reasonably.

Reasonable control of breeding density to prevent centipedes from killing each other

Scolopes are prone to kill each other and die if they live in a high density or are disturbed a lot. However, under the breeding conditions, with the improvement of living environment and breeding conditions, if enough fresh feed and water are provided, it will not disturb its life, even if the breeding density is high, it will not have much impact on its life. In particular, centipedes born by the same mother live together since childhood, and even dozens of them can get along in harmony when they grow up. Therefore, it is necessary to provide enough fresh feed and water for the artificial reproduction of centipede and keep a quiet environment. Unless it is necessary to raise seedlings, it is necessary to avoid mixing young centipedes produced in different breeding ponds as much as possible.

Master the diet law of centipede and scientifically allocate centipede feed.

Wild centipede is a typical carnivorous insect with fierce sex. With its jaws that can shoot poison, it can prey on all kinds of smaller animals much bigger than it. The animal feeds that centipedes like to eat are earthworms, mice, spiders and dragonflies. When animal feed is insufficient, they also eat plant feed. In order to reduce the cost of breeding and expand the source of feed, it is hoped that medical animal farms will pay special attention to the development and utilization of plant feed, and have developed several compound feed formulas that are deeply loved by centipedes. Due to the abundant supply of compound feed and comprehensive nutrition, centipede as the staple food can obviously promote the growth and development of centipede and improve the survival rate of young centipede.

Centipede has a large appetite and strong hunger tolerance. When you are hungry, you can eat 65438+ 0/5 ~ 3/5 of your own weight at a time. After eating, you won't starve to death without feeding for ten and a half months, but the centipede is not thirsty and needs to drink water every day. Therefore, it is necessary to place water containers in breeding grounds and change water regularly to keep drinking water fresh and clean.

The key to success or failure in centipede breeding lies in management. The daily management of centipede must be done well in the following aspects: feeding, water supply and escape prevention.

First, feeding management-production of mixed feed

Centipedes are omnivores. Wild centipedes feed on small animals. In the breeding process of our farm, all kinds of animal carcasses and viscera, animal blood, noodles, rice, tofu, fruits and vegetables are used as the main raw materials, which are simply processed and fed to centipedes. Practice has proved that centipedes like to eat. Fish can be directly cut into pieces and put into food plates for centipedes to eat. Cooked noodles and leftover rice can also be directly put into the food plate and put into the centipede pond. The centipede cultivated on our farm mainly supplies mixed feed of meat and vegetables.

Second, water supply management-centipede can't live without water for a day

The centipede can live for ten and a half months without food, but it can't live for a day without water. Therefore, it is necessary to ensure that the humidity of the crib where centipede lives is moderate, and the living environment of centipede has sufficient drinking water supply. The demand of centipede for soil moisture in different growth and development stages is very different. For example, centipedes that are about to molt have higher requirements for soil moisture, while centipedes that molt have lower requirements for soil moisture. The demand of centipedes in the same culture pond for soil moisture at the same time is very different. This problem can be easily solved by reasonably designing the structure of the aquaculture pond.

In greenhouses or outdoor aquaculture ponds, we can spray water directly on the crib with water pipes, and the water flows down the crib, and most of it enters the pit under the crib. In indoor aquaculture, we can directly inject water into the pool under the crib with water pipes until the water flows out from the upper edge of the pool, and the bottom of the crib is basically soaked in water, with the highest humidity. As the crib moves up, the humidity decreases, and the humidity at the top of the crib is the lowest. The humidity of the whole crib changes obviously from bottom to top, which can easily meet the special needs of centipedes at different growth and development stages, but don't forget to fill the ditches around the breeding pond with water for centipedes to drink.

Artificial breeding centipede

Scolopendra is a commonly used Chinese herbal medicine, which is mainly used to treat wind toxic sores, hematocele, infantile convulsions and so on. There is a great demand for medicine at home and abroad. Now the artificial breeding technology is introduced as follows:

I. Feeding and management

There are two ways to cultivate centipedes artificially:

1, semi-natural outdoor culture mostly adopts pond culture. Aquaculture ponds should be built in places with good ventilation and drainage conditions. A sunny place. Dig 80 cm deep from the ground, with an area of 5- 10 square meter. A ditch with a width of 10 cm and a depth of 3 cm was built around the fence mouth, and a trough with a width of 30 cm and a depth of 3 cm was built near the inside of the ditch for feeding. A shed should be set up above the aquaculture pond for sun protection and rain protection. In order to prevent centipedes from escaping, the walls and ditches of the culture pond should be smooth; Spread loose fine sand with a thickness of about 10 cm on the bottom of the pool, then fill in fermented animal feces with a thickness of 3 cm, sprinkle some chicken feathers and bones on the feces, and finally spread broken tiles or gravel.

2. There are two kinds of indoor artificial propagation: in-cylinder stocking and indoor stocking:

(1) In-cylinder stocking: a number of earth tanks are set indoors, and the bottom of the tanks is covered with soil with a thickness of about 10 cm. Several layers of tiles and stones are piled on the soil surface, and then a small sack is covered on the soil surface, with a cover made of fine barbed wire at the cylinder mouth.

② Indoor stocking: It is best to have a ceiling in the room used in the feeding room, or lay barbed wire on the roof, and set iron screen doors and screens to prevent centipedes from escaping. Around the room, tiles, sand, stones and a small amount of soil were piled up in the rubble to create as many gaps as possible suitable for centipede habitat. In order to make full use of space, the gravel pile can be piled as high as possible.

Artificial feeding can choose feeds according to local conditions, such as various insects, earthworms, fish, shrimp, eggs, meat, animal blood, miscellaneous bones, melons and fruits, etc. However, it is required not to feed fresh, spoiled or stale food. You can feed it every 2 ~ 3 days, but you need to clean up the last leftovers when you feed it for the second time. Centipede has the habit of drinking water, so every time you feed it, you should put enough water in the water fountain. The first batch of artificially cultivated centipede provenances mostly came from captured wild centipedes. As a variety, it is required to choose centipedes that have reached sexual maturity at the age of 3 ~ 5, are healthy, active and have a dark and shiny back. The ratio of male to female is 10: 2. Centipedes have worse eyesight during the day than at night, and most of them are unsociable. The peak of predation at night is 8 ~ 1 1. The optimum temperature is 25 ~ 30℃, and centipede is inactive below 65438 00℃, which is not conducive to its survival. The weather is sultry, with frequent activities at night after a thunderstorm and little activity when it is windy and rainy. Therefore, the activity of centipede is related to climate factors, which should be adjusted at any time. In order to make centipede safe in winter, a ditch with a depth of 80 ~ 100 cm can be dug in the breeding pond, and the garbage and excavated soil are mixed evenly according to the ratio of L: 2, and the ditch is filled up. Then cover with tiles and broken bricks and release the centipede. Cover the tiles and broken bricks with a layer of straw or fine soil to raise the soil temperature and keep it stable, so as to ensure the centipede to overwinter safely. If raised indoors, doors and windows should be closed, grass curtains should be hung, and the indoor temperature should be raised with charcoal fire if necessary.

Second, the reproduction of centipedes.

To cultivate centipedes, male and female identification should be carried out first, and the ratio of male and female should be mastered. A more accurate and reliable identification method is: gently squeeze the tail genitalia with your fingers to determine whether there is a sex of the degenerated reproductive limb. The female centipede has no reproductive limbs on the web of the anterior genital joint, while the male centipede has a pair of degenerated reproductive limbs and penis. Scolopendra lays eggs, which gradually mature in late spring and early summer every year, and the spawning period is from late June to mid-July. Before laying eggs, the female centipede is bloated, her abdomen is almost close to the ground, and she moves slowly. She will dig a shallow cave to lay eggs by herself. Hatching is usually carried out in caves, and some people choose to lay eggs under rocky piles or near tree roots, 20-60 eggs at a time. The life cycle of centipede is generally 5 years, and a few individuals can reach 6 years. The maximum length can reach 17 cm and the maximum weight can reach 14 unit weight. After 4 years, centipede grows to sexual maturity and begins to reproduce for the first time. The second reproduction takes place in the fifth year.

Third, the enemy's harm and disease.

The natural enemies of centipede are mice, skinks, toads and ants. Scolopes hatch and shed their skin slowly, so they are easily exploited by ants and can be killed and eaten in a few hours. Therefore, it is necessary to prevent ants in advance and pay attention to prevent chickens and poultry from entering the pond. There are few diseases of centipede, but in the hot season from June to August, if the temperature is too high, it is easy to be invaded by Metarhizium anisopliae. Black spots appeared on the infected centipede skin membrane, and then the spots infiltrated and expanded, the body color lost luster, the appetite disappeared, and even emaciated and died. To prevent Metarhizium anisopliae infection, the key is to adjust the temperature to prevent the farm from being too humid.

Fourth, capture and processing.

1. To catch the centipede, you can first gently press the centipede with a wooden stick, then accurately press the head with your index finger again to force its poisonous crotch to open, then hold the head with your thumb and middle finger and quickly throw it into the container. It can also be clamped with bamboo clips or iron clips. If you are stung by it while grasping, the stung part will be very painful, but it is not life-threatening. It can be applied with ammonia or toilet water, egg white or cool oil, or mashed with garlic for external application.

2. The processing method of centipede is: after scalding centipede with hot water, squeeze out the intestinal contents with fingers from beginning to end, take bamboo sticks with sharp ends as long as centipede, insert one end into the first section of centipede's head and trunk from the ventral surface, and insert the other end into the tail, brace it up and straighten it, then clamp it with thin bamboo pieces in rows of 10, and dry it or dry it in the sun, but try to avoid breaking the head and tail. If the broken limb falls off accidentally, it can also be collected and sold together, and its medicinal value remains unchanged.

Centipede, also known as dragon, white foot, Dendrolimus punctatus, centipede, millipede and so on. There are more than 20 varieties of red head, green head and golden head, which are precious second-class Chinese herbal medicines and are very scarce at present. Scolopendra is used as medicine to treat wind-toxic sores and hematocele. It has the functions of expelling pathogenic wind, relieving convulsion, resisting cancer, detoxicating, resisting tumor and anticonvulsant, and has high economic and medicinal value.

Because it is afraid of heat and likes cold, the main breeding place of centipede is north of the Tropic of Cancer, which has strong adaptability and is easy to be cultivated artificially. Centipede likes to live in hidden places such as branches and trees, rocky piles, barren and humid thatched fields and under big stones, and go out at night. After late autumn, it burrowed into the soil with a depth of 10 ~ 13 cm from the ground for the winter, and it didn't start to move until the next year. Most of the centipedes raised artificially in China are red-headed centipedes, which have fewer spines, fast growth and high reproductive capacity. An adult centipede can hatch 100 young centipedes every year.

First, the method of artificial breeding centipede

1. Wild farming method: This method is simple and easy to operate. In winter, dig a small ditch in the place where centipedes haunt, and put garbage, broken bricks, animal residues, bones, intestines, fishbones, chicken, duck and goose feathers into it. When centipedes smell chicken feathers, they will gather to live and breed, and they can be caught in spring. Generally, centipedes can be caught once every 1 ~ 2 days, then fresh food is added, and fine soil is covered before catching. The best season to catch centipedes is around Tomb-Sweeping Day. In addition, the iron rake can also be used to catch centipedes in rocks, roots, weeds, beaches and other places. This method is especially suitable for raising centipedes for the first time, which can solve the problem of provenance and is especially suitable for people without professional breeding conditions.

2. Indoor artificial breeding method: Cement tanks can be used for indoor breeding, and the bottom area of the tanks is preferably 50×40 cm. Cement tanks are stacked in 2 ~ 3 layers in a pin shape, and glass plates are used as cylinder heads. The cylinder should be covered with soft fine soil, the thickness of which varies with seasons, generally 10 cm in spring and autumn, 5 cm in summer and 20 cm in winter. Place broken tiles or pebbles, small wooden blocks, etc. On the upper floor; The four corners of the cylinder can be made into triangular water tanks by glass bonding, or they can be replaced by water containers to supply drinking water for centipedes. Stocking density is related to individual size, different growth periods and feeding conditions. Generally, each tank can support 200 young centipedes aged 1 ~ 2, 75 centipedes aged 3, or about 40 ~ 50 centipedes aged over 4, and about 4 male adults per tank. Other aspects can refer to the outdoor semi-natural artificial pond culture method.

3. Outdoor natural pond culture method:

(1) The centipede pond should be built on a cool, damp and secluded hillside. Brick, stone, cement and other materials are used to build the wall with a height of 80 ~ 100 cm, and the cracks in the wall should be hooked with cement. The length and width of the pond depend on the number of aquaculture. Large ponds should be divided into small ponds in the shape of "fields" and fed separately. Drainage ditches should be set around the pool, and cement should not be poured at the bottom of the pool. First, use fine stones or broken tiles to pad up fine soil about 6 cm, leaving a gap. Weeds and trees should also be planted in the pond, and drinking plates should be placed in the pond to supply clean drinking water, so as to create a natural ecological environment suitable for centipede habitat as much as possible. Set a circle of "inner eaves" with a width of 15 cm around the mouth of the pond at right angles to the pond wall to prevent centipedes from escaping or other harmful animals from invading.

(2) The first batch of centipedes can be collected in the wild, and seedlings can also be purchased. Generally, centipedes with sexual maturity of 3-5 years old should be selected as seedlings, which should be robust and lively, with dark and shiny back, and the male and female collocation should be 10: 1. However, when female centipedes lay eggs and hatch, all male centipedes should be selected for other breeding, and the density of centipedes in the pond should be 350-450 per square meter. The humidity in the pool is 60 ~ 70% and should not exceed 75 ~ 90%. If the humidity is too high, centipedes are easily infected and invaded by germs, which leads to shelling and eating difficulties, which not only hinders normal development, but also causes physiological diseases, and even does not reproduce or reproduces less. The indoor temperature should be kept at 26 ~ 29℃. When the temperature rises to 40 ~ 42℃ in summer, the water in centipede evaporates quickly, so we should pay attention to cooling at any time. The general method is to often spray water into the pool to cool and moisturize. In winter, straw should be thrown into the pool to keep warm, and a moist, warm and sufficient feed environment suitable for centipede growth should be created.

(3) Centipede is a carnivore and likes to eat all kinds of insects, such as locusts, crickets, cicadas, grasshoppers, dragonflies, spiders and moths. Feed should be mainly poultry and animal meat, such as loach, eel, earthworm, snail, bat, mouse, gecko, lizard, snake, fly maggot, termite and ground beetle. Centipede sometimes feeds on fruits, carrots, watermelon peels and tender plants, and can be properly matched with 25-35% green feed such as lotus seeds and green leaves. In the evening of summer and autumn, you can also light a lamp to lure insects and moths to prey on centipedes, and you can put some insects in the weeds in the pool to breed for centipedes to eat. But centipedes are hungry, and they won't die if they don't eat for more than ten days. However, it should be noted that centipedes will kill each other and bite the feed when they are extremely hungry or seriously disturbed. Besides, centipedes can go without food for several days, but they can't go without water for a day. A water tray should be set in the aquaculture pond to provide enough drinking water. Scolopes, in particular, are particular about food, and even insects don't eat rancid food. Feed should be increased or decreased according to the season. Put more centipedes in spring and summer, and reduce them in late autumn and early winter.

Generally, the food intake of an adult centipede is about 1 g, and the larvae can be fed once every 2 to 3 days, while the adult centipede needs to be fed once a day. It is better to put bait at night. First, remove the leftovers from the previous day, and then enlarge the food.