CATDOLL : CATDOLL: What is the prospect of maggot farming?

1. What is the prospect of maggot farming?

Not only is it very good from the current perspective, but also from a professional perspective, it is difficult to find high-protein feed that is economical and has high utilization rate for poultry, which is easy to control and easy to breed on a large scale like maggots. So it will be possible even for quite some time in the future.

From the perspective of economic benefits, this thing is still very profitable, with low costs and high profits. It's just that breeding requires technology, space, and relevant knowledge. You must be a person with a personality similar to that of a zoologist, or you need to have talents on hand.

If a certain scale has not been formed and it is only a small-scale production, then we must do a good job in how to utilize the maggots. Otherwise, it will be difficult to sell without a certain output. The production cost is also not to be ignored. Don't think that there is no big cost and technology, but if you want to do it well without corresponding sales and utilization, in the end there may be no results, and the limited funds will be wasted.

I think we should be cautious, and even more cautious! ! ! !

Those who are engaged in breeding can consider raising maggots, and those who can produce on a large scale can use maggots.

Those who don't have much money should be careful!!!

At present, my country does not have the technology to extract the useful value from the body of fly maggots, and still uses it as protein feed. It may be more promising in the future, but now is not the time.

Fly maggot farming has a good prospect. It is a low-cost feed source. For more information, please visit the Fly Maggot Farming Technology Network to learn more.

Good/There is a bright future ahead

2. Maggots are good in hot weather, but how do maggot seedlings survive the winter?

When the temperature is below 30 degrees all year round, it is best to build a simple greenhouse and breed maggots indoors. In spring and autumn, the room can reach the suitable temperature for maggot breeding by slightly heating it up. In winter, fuel is consumed and costs are increased. It is not suitable to continue breeding in too cold areas. If relative measures can be taken to increase the temperature, breeding can also be carried out in winter.

When the bait temperature is 16℃, the egg stage, larval stage, and pupal stage have a longer growth period, which is 40-48 days, with an average of 44.8 days. At 30℃, the growth period is shorter, which is 3-5 days, with an average of 4.4 days. When the bait temperature is lower than 10℃, the growth cycle of fly maggots will be greatly extended. It can be seen that the relationship between temperature and the ecological growth rate of fly maggots is very close. Controlling the temperature is a key measure to increase the yield of fly maggots. In particular, the temperature in the larval stage is more important, which directly affects the growth and maturity time of the larvae, involves the yield and maturity of maggots, and also has a certain impact on the quality of protein. Therefore, if you want to keep the maggots growing in winter, you must control the temperature.

Put it in the greenhouse.

3. Is it complicated to breed maggot flies?

Fly maggots and fly pupae have high feeding value. According to analysis, dry maggots contain 39%-63% protein, 12.6% crude fat, and a certain amount of calcium and phosphorus. Artificial breeding of fly maggots can greatly reduce the cost of feed production.

1. Adult rearing ① Equipment. Fly cage: A 50 cm × 50 cm × 50 cm bracket made of iron or wooden bars, covered with plastic or window screen, with an operating hole of 12 cm to 15 cm in diameter on one side. Each fly cage is equipped with a drinking cup, three or four feed trays, and an egg-laying tank. Fly maggot culture tray: Made of plastic or iron sheet, the number depends on the scale of breeding. The size is preferably 5 kg of culture medium per tray. The culture tray is generally 10 cm high on each side, and the thickness of the culture medium is preferably 3 cm to 5 cm. ② Feed preparation. The food of adults is mainly young maggots. First, grind the fresh maggots with a meat grinder (the diameter of the wall hole is 1.0 mm to 1.5 mm), and then mix them according to the following proportions: 95% maggot paste, 5% brewer's yeast, and 150 ml of water. ③ Rearing technology. Put the breeding flies into the fly cage (when the breeding pupae are about to hatch, put them together with the hatching tank). The stocking density is calculated based on the average space of 10 cm3 occupied by each adult in the cage. At least 12,000 flies can be placed in each cage. When 5% of the flies have hatched and the male and female have begun to mate, they can be placed in the egg-laying tank. The egg-laying tank is an opaque container with an appropriate amount of bran. For easy management, adults should hatch a batch every 7 days. The egg-laying capacity of adults is up to 1,000. After about 12 to 15 days, the egg-laying capacity can be eliminated after the egg-laying capacity decreases. The method is very simple. After taking out the bait and water, they will starve to death two days later, or be scalded to death with boiling water. Dead flies can be directly fed to poultry, or dried and crushed, and mixed into feed.

When operating, please note that the room temperature should be controlled at 24℃-30℃, and the humidity should be controlled at 50%-80%. Every morning, take out the two bait trays (one for brown sugar and one for maggot slurry) and a drinking water tank in the fly cage, rinse them clean, and then put in the bait. In order to reduce the number of flies escaping, it is also advisable to take out the fly eggs at this time and move them to the larvae room for cultivation. Put about 40 grams of brown sugar in the sugar tray each time, and change it every 2-3 days. Once is enough.

Flies can spread many diseases, so during the culture process, be careful to prevent the flies in the cage from escaping. A buffer room should be set up outside the adult room, and there should be a fly-killing device inside to lure and kill individual adult flies that fly out.

2. Larvae (maggot) breeding 2.1 Preparation of culture medium. Mix 30% chicken manure, 70% wheat bran or all chicken manure and pig manure, and add water to prepare a culture medium with a moisture content of about 15%. 2.2 Inoculation of eggs. Place the prepared culture medium in a fly maggot culture tray with a thickness of about 3 cm to 5 cm (no more than 3 cm in summer), and then inoculate 4 grams of fly eggs per 5 kg of culture medium. The inoculated culture medium can be placed in a culture room at 22℃-25℃ for culture. 2.3 Separation of fly maggots. Fly eggs can hatch into maggots after 8 hours to 12 hours in the culture room, and become pupae after 5 days to 6 days. As feed for livestock and poultry, they can generally be harvested as a product from the 4th day after the larvae hatch. The harvesting method is: taking advantage of the light-avoiding properties of fly maggots, place the culture medium under strong light, and the maggots will drill into the bottom layer of the culture medium,

At this time, remove the upper culture medium, pour the remaining culture medium into the gauze sieve, rinse it repeatedly in water, and you can get clean maggots.

Difficulties and most common problems in fly maggot farming:

1. It is difficult to domesticate these flies, and it takes a long time.

The solution is to introduce the species directly.

2. The species of flies do not lay eggs.

The flies always stay in places with strong light and are unwilling to come down to eat food, nor lay eggs or lay very few eggs. The reasons for this situation are: first of all, mainly environmental factors, such as low temperature, dim light, odors in the breeding room that flies don't like, odors caused by unwashed food trays and sponges, spoiled food for flies, stale manure or over-fermented, stale egg-collecting materials, breeders smoking in the fly maggot room, breeders moving around in the breeding room to drive away flies, too many male flies and very few female flies, etc. The solution is: the temperature in the breeding room should be above 22℃ and below 38℃, the light should not be too dark, and other odors such as paint should be eliminated. The food tray and sponge should be cleaned every 2 days, and the sponge should be replaced every 20 days. Fresh food should be used to feed the breeding flies every day. The manure for breeding maggots should be fresh (within 3 days). The egg collection material should be prepared and used immediately. EM or substances that flies don’t like should not be added to the egg collection material. Smoking is strictly prohibited in the breeding room. Breeders or visitors should walk gently when entering the breeding room. It is strictly prohibited to scare flies, so that flies know that we are not their enemies. Use better manure to raise the maggots for breeding to ensure that there are enough female breeding flies. Solving the above problems, it is easy to make flies lay more eggs.

3. Maggots crawl out before they grow up.

Under normal breeding conditions, maggots crawl out of the dung pile after they grow up and mature, but in breeding, some maggots crawl out before they grow up. A large number of small maggots crawl back and forth on the dung pile, unwilling to drill into the dung pile to eat food. The main reason is that the temperature in the dung is too low. When the temperature of the dung is below 27℃, it is difficult for maggots to absorb nutrients in the dung. If the dung is not fresh or has been fermented too much, it will no longer ferment after entering the maggot room. The temperature in the dung is too low, and the maggots cannot absorb nutrients in the dung pile. The maggots have to drill out of the dung pile collectively to find food. The solution is: increase the temperature in the breeding room, the temperature of the manure will also increase, the nutrients can be absorbed by the maggots; put fresh manure on the maggots that are crawling around, the maggots will immediately drill into the new manure to find food; the second is that there are too many maggots and not enough manure, the nutrients in the manure have been eaten by the maggots, there is no food, the maggots have to come out to find other food. The solution is to add new manure. The above situation occurs most in spring and autumn.

��4. The maggots do not separate automatically or are not separated cleanly.

The principle of automatic separation is to use the physiological characteristics of fly maggots. When fly maggots grow up and mature, they will pupate, but they don’t like to pupate in the growing dung pile. They will crawl out of the dung pile, but they are blocked by the wall of the maggot breeding pool. They have to walk along the wall to both sides. When they are close to the maggot collection bucket, they encounter a small slope. Instead, they compete to climb up. Just when they climb to the side of the maggot collection bucket, a sudden downhill slope (maggots have no eyes) makes them fall into the maggot collection bucket by surprise and can’t climb up again. Sometimes, especially in winter and spring, it is always found that the fly maggots are not separated cleanly and many fly maggots pupate in the dung. The reasons are: first, the temperature in the breeding room is too low, below 20℃, while the temperature in the manure pile is above 30℃. When the maggots crawl out, they immediately feel that the temperature outside is not conducive to pupation, so they have to pupate in the manure pile; second, the manure pile is too large, and the maggots next to it automatically separate, while the maggots living in the middle of the manure pile have been crawling for a long time and have not yet crawled out of the manure. They have no eyes and think that the manure pile is boundless and it is futile to crawl any further, so they have to pupate in the manure pile; third, the frequent activities of the maggots always scatter the manure, which always fills up the edge of the maggot breeding pool, and the maggots have no "way" to crawl out. The solution is: the time for the maggots to separate automatically is between 3 and 9 o'clock, during which the temperature should be above 20℃, the weight of feces in each maggot breeding pool should be less than 100 kg, and the feces blocking the side of the maggot breeding pool should be shoveled to the middle 2 to 3 times a day to make the path along the wall of the maggot breeding pool unobstructed.

Problems with productive breeding of fly maggots:

1. Necessary conditions for maggot breeding

Natural conditions: Temperature is one of the necessary conditions for maggot breeding. Below 25℃, flies stop breeding or enter hibernation, not eating or moving. Plastic sheds can only be used for seasonal breeding. In late autumn, severe winter, and early spring, the temperature is not high enough to meet the requirements, so breeding in the shed is futile.

Maggot feed: The feed for productive breeding of maggots must be cheap waste, preferably chicken manure produced by professional chicken farmers. Calculated based on 3 catties of chicken manure to produce 1 catties of maggots, productive breeding requires a lot of feed. If you buy soy sauce residue, tofu residue or other waste, the cost is too high and the result is often not worth the gain.

Self-consumption capability: Productive fly maggot breeding products must have self-consumption capability. Currently, there are not many departments that purchase fly maggot products, and there are not many deep processing units for fly maggots and pupa shells. Therefore, to engage in productive fly maggot breeding, one must be a professional poultry or fish breeding household that can produce and consume by itself, so as to reduce the feed cost of poultry and fish and improve economic benefits.

2. Site selection for breeding sites

Fly maggot breeding is detrimental to hygiene to a great extent. Therefore, when choosing a breeding site, pay attention to the following points: Stay away from residential areas: Chicken manure or other waste is piled up in the yard, and adult flies enter the room to bite and crawl, affecting human health. Pay attention to the year-round wind direction: Pay attention to the local year-round dominant wind direction, and set up the fly maggot breeding farm on the leeward side of the chicken farm to prevent the odor from drifting into the breeding room and the chickens, affecting the healthy growth of breeders and chickens. Stay away from water sources: Fly maggot breeding farms must be far away from self-supplied water sources and public water sources to prevent sewage from seeping into the ground, causing water quality deterioration and affecting the water use of chickens. Waste dumping site: Fly maggot production breeding sites must have a dedicated site for the storage of chicken manure and fly maggot breeding waste to prevent environmental pollution.

3. Construction of breeding rooms and sheds

The area of ​​the insulation room and shed is calculated as 1 square meter for every 1 kilogram of maggots produced. Rooms and sheds that are too large are not conducive to heat preservation, and too small cannot guarantee the output. This is a major problem in maggot farming, which involves investment issues. If funds permit, a cold-proof insulation room can be built for year-round farming; if funds are insufficient, seasonal greenhouse farming can be carried out. Simple outdoor farming is affected by temperature and rain. The farming time in the south is longer and that in the north is shorter. This method of farming can neither guarantee the output nor harm environmental hygiene, so it is not recommended. The following points should be paid attention to when constructing a shed for productive farming:

Cold protection and heat preservation: To ensure that the indoor temperature of the greenhouse is above 25℃, the indoor walls should be of a certain thickness, the doors and windows should be tight, and there should be heating and temperature control facilities indoors. The temperature of the plastic greenhouse is too high in summer, and it is difficult to reach 25℃ in cold seasons, so it is not suitable for breeding.

Rain and sun protection: Pay attention to rain protection when breeding in the shed to avoid damaging the breeding environment of fly maggots. In the midsummer season, pay attention to avoid direct sunlight to prevent the fly maggot feed from drying up and causing the maggots to die.

The specific structure, scale and shape of rooms and sheds can be adapted to local conditions and do not have to be forced to be consistent, as long as they are applicable.

4. Productive breeding management

The productive breeding management of fly maggots can be roughly divided into two parts: inducing flies to lay eggs and the growth of maggots.

Female flies have the instinct to hatch eggs safely, so they lay eggs in a quiet or sheltered place rich in nutrients. To understand this habit of female flies, you can use plastic square plates, cans and other containers, put nutrients (meat bones, leftover soup, fish offal, watermelon rinds, wheat bran, sugar solution and other waste) in them, and place them in a quiet place to lure flies to lay eggs. When the eggs hatch into maggots, you can move them into chicken manure to let them grow.

When feeding and managing fly maggots during their growth process, it is important to understand that after the maggots mature, they no longer need to be fed with feed, but begin to crawl outward into the soil to pupate, and the maggots should be collected or caught in a timely manner.

Fly maggot breeding can be divided into two types: dry and wet. Dry breeding is: spread chicken manure on plastic sheeting or cement floor, 80 cm wide, 10-15 cm high, and unlimited length. After the fly eggs or hatched larvae are moved on, water is sprinkled to maintain a certain humidity, and the eggs or larvae can hatch and grow. Wet breeding is: build a non-leaking pool with a depth of 30 cm, a width of 60-80 cm, and unlimited length in the room or shed, put water in the pool, put chicken manure into it and stir it into a thick slurry, move the fly eggs in, and it can hatch into maggots and grow. Regardless of dry or wet breeding, when the fly maggots grow, the maggot manure should be cleaned in time and new chicken manure should be replaced regularly to increase production.

5. Processing and Storage of Maggots

The collected or fished fly maggots should be put into hot water to kill them in time, then fished out and dried in the sun (or oven), or directly mixed into corn powder feed and fed in time. Wet maggots mixed into corn flour should not be left for a long time to avoid mold and deterioration.

The daily output of fly maggots is large, and the moisture content can be controlled after drying, which is convenient for long-term storage. When processing fly maggots, rotten and deteriorated dead maggots should be picked out to avoid affecting the quality of maggot powder.

New method for rapid breeding of fly maggots:

1. Cultivation tools: General household plastic basins, plastic buckets and other containers can be used, the four walls must be relatively smooth, and the depth of the basin must be greater than 25 cm.

2. Selection and preparation of egg-sucking materials and collection and cultivation of fly eggs. If there is fresh chicken manure, you can directly use fresh chicken manure as egg-sucking materials to collect fly eggs. The method is: put fresh chicken manure in a basin. If the chicken manure is too dry, sprinkle a little water on it. Put it in a place where there are many flies in the wild. It should be placed in a cool place as much as possible. If the sun is too strong, use shade to shade it. Generally, flies will gather and lay eggs immediately after putting it in. Take back the egg-sucking materials every afternoon. You can see that there are clumps of fly eggs on the surface of the chicken manure. You should immediately cover it with corn manure or wheat bran mixed with water to ensure that the egg masses have a certain humidity. You can see many small maggots the next day, and you can raise them in separate basins. The method of raising maggots is to first spread about 3-5 cm thick wheat bran or corn flour mixed with water in the basin, and then put the hatched maggots together with the egg sucking material on the wheat bran or corn flour. After eating the egg sucking material, the maggots will quickly drill into the feed below. Under normal circumstances, they can grow into large maggots in 3 days. The powder used to raise maggots can be fermented or used directly. If rice bran is used to raise maggots, it must be fermented, and the rice bran must be of good quality. The "rice bran" that is completely rice husk is not effective in raising maggots. Fermentation can increase the yield of fly maggots. Generally, 1 catties of wheat bran can produce about 0.5 catties of maggots, and 1 catties of corn flour can produce 0.4 catties of maggots. The yield can be increased by about 1 times by adding waste such as pig blood. The powder mixed with water is easy to heat up, so the thickness of the powder in the basin should not be too thick to prevent the fly maggots from dying from heat. The maggot breeding pot should be placed in a place with higher temperature (25-30℃) but slightly dim light.

3. Cage management of flies. Using this method to collect fly eggs will not only not increase the number of wild flies, but also gradually reduce the number of flies in the wild if used for a long time. However, in some densely populated areas, in order to avoid causing people's disgust, especially if you want to use red-headed flies for breeding, you can keep the flies in cages. The specific method can be found in Appendix II, pages 34-36 of the third volume of the eel training materials.

4. Separation of fly maggots. There are several methods for separating fly maggots. (1) Separation between large and small basins. Place a smaller plastic basin inside a larger basin, wet the four walls of the small basin with a damp cloth, pour the maggots and feed into the small basin to a thickness of about 2 cm, and the fly maggots will crawl along the basin wall into the large basin. (2) Photo separation. Place a sieve with holes large enough for the maggots to drill through on a plastic basin, wet the maggot feed with water, and then pour it into the sieve. The thickness should not exceed 2 cm. Place it in the sun. Since the fly maggots are afraid of light, they will try their best to drill down and fall into the basin below. (3) If there is a maggot breeding room, pour it into the maggot breeding pool and let it separate automatically.

The waste from breeding fly maggots can be directly used for raising chickens, pigs, fish, etc. It is still a very good feed, and animals love to eat it.

Using this method, based on the calculation of using only fly maggots to breed yellow eels, generally about 7 catties of fresh maggots can make the yellow eel gain 1 catty, and the feed cost is not very high. Taking wheat bran as an example, 1 catty of fermented wheat bran can produce 1 catty of fresh maggots. Calculated at 0.7 yuan per catty of wheat bran, each catty of wheat bran can produce 0.4 catties of waste after producing fly maggots, which is worth 0.24 yuan as feed. The cost of 1 catty of fresh maggots is about 0.46 yuan, and it costs about 3.3 yuan to use pure maggots to make the yellow eel gain 1 catty. In addition, the yellow eel gains weight quickly and will not pollute the pond water, which is worthy of widespread use by many students. When fresh maggots are added to fish feed for feeding, the feed coefficient will be significantly reduced, and the breeding cost will be lower.

What are the benefits of using EM and other microorganisms to cultivate fly maggots?

In the process of breeding maggots, the use of EM and other microorganisms for treatment can eliminate the odor of the breeding environment and control the development of pathogens and viruses in the breeding environment. At the same time, the breeding raw materials are treated with EM and other microorganisms, and their nutrients are more easily absorbed by maggots, which can significantly increase the yield of maggots.

What are the basic raw materials for producing fly maggots? General livestock and poultry manure (pig, chicken, duck, etc.) can be used to breed fly maggots. Wheat bran, corn manure, vinegar residue, livestock and poultry slaughter scraps, etc. are also good materials for breeding fly maggots. Students can choose raw materials with a wide range of sources and low prices according to their own conditions.

To raise flies, you also need to prepare a small amount of milk powder, brown sugar, etc.

Is it possible to replace commercial compound feeds with fly maggot production on a large scale? How much investment is required?

You can verify the large successful breeding farm at any time! Of course, the scale is up to you. But there are two most basic conditions: one is that there must be enough animal manure or wheat bran and other production materials in the local area; the other is that there must be a corresponding site. With such conditions, the daily output can be as high as you want! The amount of investment mainly depends on your daily output. The largest investment is the site required to build the breeding farm. If you have an old house to renovate, then the investment is very small. To achieve a daily output of about 50 kg of maggots, the site investment is about 2000-3000 yuan, and so on.

Will economic animals’ disease resistance be enhanced after eating fly maggots?

All farmers who feed economic animals with fly maggots have found that the economic animals' disease resistance has been significantly enhanced or even no longer sick! Why is this?

Before answering this question, let's observe the living environment of maggots. They always live in the dirtiest places, but they never get sick. Why is that?

This is because they have a disease-resistant substance in their bodies, which gives them a strong ability to resist diseases. For example, chitin, a substance commonly used in vaccinations, is extracted from maggot shells. Vaccines produced using chitin processing and injected into animals or humans will enhance their ability to resist diseases. Of course, the rich protein and amino acids in fly maggots are also the main reason for enhancing the physical fitness of animals.

Therefore, when the economic animals are fed with fly maggots, their disease resistance will be greatly enhanced or even disease-free, thereby reducing mortality and improving economic benefits.

What are the tips for increasing fly maggot production?

(I) Increasing the egg-laying capacity of flies: The conditions for increasing the egg-laying capacity of flies are: 1. Ensuring that there are a large number of sterile breeding flies, with the number of flies maintained at more than 200,000 in a maggot room of about 100 square meters; 2. Adding a new formula to the feed that can induce flies to lay eggs; 3. Using a new formula for egg-collecting information substances.

(II) The breeding flies must be "engineered flies" or "red-headed flies" that have been specially domesticated for a long time. After a lot of efforts and special domestication, we finally succeeded! The difference between domesticated house flies and wild flies: 1. They are not afraid of people: if you put your finger 1 inch away from them, they will not fly away; 2. They have good stability and do not like to escape; 3. They lay a large number of eggs and like to live in groups; 4. They are sterile, and their daily eating, mating, and egg-laying life are very regular (the domestication process will be explained to you in detail during the training).

(III) The formula of egg-collecting materials used to be wheat bran plus ammonia water, which was not ideal in practice. Through a lot of practice, we have summarized several formulas with easy-to-obtain, cheap and particularly effective raw materials. You can see on site: within one minute after we put the egg-collecting materials on the feces, flies will rush to lay eggs on them. The scene will definitely surprise you.

(IV) Preparation and formulation of maggot breeding base material: The method is quite different from general technology. As for fermentation technology, one of the methods we use is "water fermentation technology" that you may have never heard of. This technology is simple to operate and can effectively remove the odor in feces. In addition, you must think that the maggot breeding room is full of feces, which must be so smelly that people dare not go in, but the fact is that there is no odor or only a little odor inside (it is normal to have a little odor inside in winter when it is cold and the windows need to be closed to keep warm. In summer, all the windows are opened and there is basically no odor inside. All feces for breeding fly maggots are sterilized, deodorized and decomposed using microorganisms).

What are the advantages of raising flies in a large cage?

In the past, people produced flies by raising them in small cages, with about 10,000 flies kept in a cage of about 0.2 cubic meters. They were fed and placed with egg-collecting materials every day, and the egg masses were taken out and poured on manure or wheat bran. When the maggots grew up, they were sieved out with a sieve in the sun, etc. This method was inefficient, labor-intensive, labor-intensive, and had high labor costs, and the yield was not high.

The relatively complete method of raising flies in houses appeared around 2001. Due to the simple manual operation process, the labor cost was significantly reduced, making the cost of raising maggots truly low. The large-scale breeding and utilization of maggots has become a reality, replacing expensive protein feeds such as fish meal in large quantities. It has not only improved the breeding effect of animals, but also significantly reduced the breeding cost. The successful popularization and promotion of raising flies in houses has also brought obvious benefits to the majority of breeders.

Of course, no technology can be perfect, and house-raising flies is no exception. In the practice of breeding, our company found that it has the following three main drawbacks:

1. Flies often escape. Although our fly breeding room uses two anti-escape screen doors, some flies often gather at the door. When breeders go in and out of the maggot room, especially when pushing manure in and out, it is easy for flies to escape outside the house, resulting in an increase in the number of "wild" flies in the breeding farm.

2. It is difficult to achieve true "sterility". Flies move around in the maggot room and often stay in multiple environments such as dung piles, walls, flowers and plants. Although the dung is treated by biological fermentation, it is obviously not hygienic for such flies to crawl on people's clothes or bodies.

3. Flies poop in the air, which seriously affects the working environment of the breeders. All breeders who have experience in raising flies in the house know that flies excrete feces at a relatively high frequency during the feeding and growth period. In addition, in order to ensure the high yield of maggots, we often carry out "high-density breeding" of flies. It is not surprising that there is always "drizzle" in the maggot room. Breeders often need to wear work clothes and straw hats when entering the maggot room, because once the feces of flies fall on clothes, it is difficult to wash them clean. However, wearing long-sleeved work clothes to carry out breeding operations in the high temperature of midsummer is really a bit "bad" for breeding operators.

While we pursue high efficiency in breeding, we should also create a good breeding and working environment. Otherwise, how can we use the word "ecological" to label ourselves.

To this end, after repeated experiments, we have perfectly combined the traditional caged flies with the house-raised flies, taking advantage of the hygienic advantages of caged flies and the low cost of house-raised flies. Compared with the previous fly breeding methods, the most significant advantages of using large cages to raise flies are:

1. The yield of fly maggots is high and the cost is still low. The breeding method of large cages is basically the same as that of house breeding. The only difference is that the flies are kept in large cages of more than two cubic meters. The operation procedure is still very simple, and the yield and cost of breeding are basically the same as those of house breeding.

2. The maggot room environment has become clean and fresh. There are no flies flying around, and the flowers and plants in the maggot room are very bright, no longer covered by fly feces like in the past. The working environment of the breeding staff has been significantly improved.

3. It is difficult to see flies outside the maggot room. The use of large cages completely avoids the occurrence of flies escaping, and the overall cleanliness and hygiene of the farm environment is guaranteed.

``All roads lead to Rome -,-

That thing eats shit. How disgusting it is to raise. It's better to raise cockroaches.