CATDOLL : CATDOLL: I have 40 acres of land planted with poplar trees. I saw that breeding fly maggots is a good project. I would like to ask experts how much it costs and how good is this project?

1. I have 40 acres of land planted with poplar trees and I saw that breeding fly maggots is a good project. I would like to ask experts how much it costs and how good is this project?

The larvae of flies are called maggots. Maggots feed on livestock and poultry feces, grow and reproduce very quickly, and do not require a lot of equipment for artificial breeding. They can be bred indoors and outdoors, in cities and rural areas. If conditions permit, high-tech can be used to breed sterile maggots for comprehensive development; rural professional households that cannot use high-tech for the time being can directly induce flies in nature to lay eggs instead of breeding flies, and directly breed fresh maggots to solve the live bait required for special breeding animals.

The reproductive capacity of flies ranks among the top among insects. The protein of fly maggots is high-quality protein. It is not only a high-quality feed, but also can be used to extract protein powder, develop advanced nutritional products, space food, medicine, etc. The artificial breeding of flies originated in the late 1970s and early 1980s. Now in developed countries such as the United States, mechanized factory production of fly maggots has been realized. In the suburbs of Miami, the United States, a fly farm has been built, which mainly produces sterile fly maggots, thereby driving the poultry and livestock breeding industry, promoting the planting industry, and deriving a series of field-run enterprises such as feed processing, industrial refining, pharmaceutical manufacturing, and food processing. Experts from Huazhong Agricultural University in my country have found that through special processing, antibacterial active proteins, complex amino acids, maggot oil, chitin and other substances can be extracted from fly maggots. These substances give flies a strong immune system to resist pathogens, and therefore have a wide range of uses in the fields of medicine, health products, and chemicals. At present, the most direct use of fly maggots is as feed. In the former Soviet Union, North Korea and the United States, many chicken farms and fisheries have fly maggot workshops. my country's Beijing Feed Research Institute is also experimenting with factory-scale production of maggots. Tianjin, Guangxi, Jiangxi, Hunan, Jiangsu, Wuhan and other provinces and cities (autonomous regions) are actively developing maggot breeding industries.

It is good to start a business, but the starting point is that you'd better investigate the local market and find a good sales channel. If there is a sales channel, technology is not a problem, but if there is no sales channel, technology is useless. We used to have a business here, but after one year, many people left and the business was forgotten. Later, I met the former manager and talked about it. It turned out that there was a problem with the sales channel.

2. Sales channels of fly maggots

You can sell fly maggots to feed companies and biotechnology companies (for extracting edible protein powder). It is best to process them yourself and dry them before selling them. However, such drying equipment is generally very expensive, and the dried products must be puffed and dried quickly at low temperature.

3. How to sell fly larvae

Are you talking about fly maggots? According to your own cost, you can consider selling them as livestock feed additives, or directly as fish feed (if the cost is very low, about 1 yuan/jin, there will be a market, such as sea bass, black fish feed are more than 1.2 yuan/jin). In my experience, the cost of fly maggots is much greater than 1 yuan/jin. The low cost mentioned on TV is too exaggerated.

4. I want to breed flies, but where can I sell the maggots? I am from Tangshan, Hebei.

Henan Zhengzhou Jinrong Agricultural Technology Co., Ltd. produces special fly maggot active protein feed and can purchase fly maggots in large quantities.

5. How to discover insect parasitism?

In ancient my country, the phenomenon of insect parasitism was observed very early. In the book Zhuangzi, there is a record of "a toad born on the eyelashes of a mosquito". According to research by entomologists, the "toad" may be a parasitic mite, which shows that our ancestors had already observed a kind of mite that would parasitize mosquitoes more than 2,000 years ago.

There is a kind of parasitic fly, which was mentioned in the book "Er Ya" more than 2,000 years ago. It is called "Pupae". The ancients discovered the phenomenon of parasitic life in the practice of silkworm breeding. When Guo Pu of the Jin Dynasty annotated "Er Ya", he said, "Pupae" is also called "Pupae". Why is it called "Pupae"? Let's take a look at the records in "Bi Ya" by Lu Dian of the Song Dynasty, and it will be clear. "Bi Ya": ", the old saying: Flies lay eggs on the body of silkworms, and when the cocoons turn into maggots, they are commonly called "zi", and they enter the soil as flies." This means that this kind of parasitic fly lays eggs on the silkworm, and when the silkworms spin silk into cocoons, the fly eggs are laid in the silkworm pupae and hatch into fly maggots, commonly called "zi". This kind of fly maggots drill into the soil and soon turn into flies. Tan Zhenmo of the Ming Dynasty made personal observations and not only verified the correctness of the records of his predecessors, but also pointed out that this parasitic fly lays eggs on the back of the silkworm. All the eggs will turn into maggots, suck the body tissues of the silkworm pupae, and finally drill out and bury themselves in the soil to turn into adults (flies).

Now we know that the insects that ancient people referred to were actually polymorphic silkworm maggot flies. Their larvae parasitize on the silkworms, which causes the silkworm maggot disease. Tan Zhenmo once correctly pointed out that the main victims of silkworm maggot flies are summer silkworms. Seven out of ten silkworm pupae in summer silkworms have maggots parasitizing them, so they cannot develop normally, and only three out of ten silkworm pupae can develop normally. It can be seen that it is a serious harm to the silkworm production.

The reason why Guo Pu called it "pupa worm" is because this parasitic fly is one of the main insect pests of silkworms, and its larvae (maggots) mostly live in the pupal stage of the silkworm's life history before leaving the silkworm body. So pupa worm means the worm in the pupa. This shows that people in my country knew about the parasitic life of silkworm maggots at the latest in the Jin Dynasty.

There is a line in the Book of Songs that says "The moth has a son, and the wasp carries it." The moth is a caterpillar, a larva of an insect; the wasp is a wasp, a kind of bee. From the line, we can see that as early as more than 3,000 years ago, people had observed that wasps had the habit of catching other insect larvae. What is the purpose of catching larvae? There is no explanation in the works of the pre-Qin period. Later scholars have various explanations for this. Some scholars, such as Yang Xiong of the Han Dynasty, believed that the wasp caught a dead caterpillar and chanted a spell to it: "Like me! Like me!" Over time, the dead caterpillar turned into a wasp. Later, many scholars believed Yang Xiong's statement. This is obviously due to not observing carefully and not understanding the essence of things. However, some scholars did not believe Yang Xiong's view. Through personal investigation, they gradually solved the secret of "The moth has a son, and the wasp carries it."

In the early 6th century AD, Tao Hongjing criticized Yang Xiong's erroneous understanding based on his own observations. He said that there are many types of bees. There is a kind of bee that is black and has a very thin waist. It often builds nests with mud next to people's houses and utensils. They lay eggs as big as corn in the nest. Then they catch more than ten green spiders from the grass and fill the nest with them, preparing to use them as food for their offspring. He said that there is another kind of bee that drills into the reed tube to build a nest. It catches green worms on the grass as food for its offspring. Based on these facts, Tao Hongjing pointed out that it is wrong to say that the thin-waisted bee catches green worms in order to educate them to become its own offspring.

In 114, herbalist Kou Zong had observed that the wasp laid its eggs on the captured caterpillar. In 1582, Huangfu Fang pointed out in his book Jie Yi Xin Yu that the borer was not dead in the nest, but it could not move. He also carefully observed that if the captured object was a spider, the wasp laid its eggs in the middle of the spider's abdomen, which is the same as the maggots laying eggs on the silkworm. These observations are completely correct. Ancient Chinese scholars conducted such detailed observations and studies on insect parasitism, which was rare in the world at that time.