CATDOLL : CATDOLL: What substances should be added to wheat bran to make fly maggots grow bigger?

What substances should be added to wheat bran to make fly maggots grow bigger?

There are two types of fly maggots raised with wheat bran, depending on the flies. One is the maggots from green-headed flies, which are raised by adding animal waste (such as animal blood, intestines, etc.) to wheat bran, and the maggots are large. If you are raising maggots from houseflies (small gray houseflies), you can also raise them with pure bran, but the maggots are small anyway. If you must raise large maggots from green-headed flies, some can be raised, but the phenomenon of escape is more serious.

I use wheat bran and chicken manure or pig manure to raise fish. You can also add some maggot slurry, and the effect is also very good.

How? Fly larvae farming

1. Fly cage. The cage is 1.5m high (including 50cm for the cage foot), 60cm wide and 100cm long. The bottom of the cage can be made of plywood, and the four sides are nailed with 12-mesh lead sand windows. A 10×10cm hole is opened on one side of the rectangle, and a trouser leg is sewn on it as an inlet and outlet for changing materials.

2. Maggot breeding platform. Build a platform with a slope of 10 cm. Smooth the inside of the platform with cement. Mature maggots tend to crawl to the higher side.

3. Production process:

①Formula of manure:

Raw materials for maggot breeding: 80% fresh pig manure, 10% wheat bran, 10% peanut residue

(Note: Spray with EM 1:10 water every day to deodorize)

Egg collection material: 80% fresh pig manure 10% wheat bran

9.5% Flowery Hawthorn 0.5% Ammonium Bicarbonate

Fly breeding drink: 5% brown sugar 5% milk powder 5% fresh eggs

0.2% Vitamin C 0.2% Methionine 84.6% Water

② Fermentation of manure:

Use EM in a dilute fermentation ratio of 1:10. The humidity is between 70-80%. Mix and ferment for 1-2 days before use. It can eliminate toxic and harmful gases in the manure during the maggot breeding process.

③Put the egg-collecting material on the manure of the maggot breeding platform. Young maggots can be seen the next day. After 2 days, mature maggots can be seen crawling out of the manure pile and crawling to the slightly higher side of the platform. Take it out and rinse it with 1/5000 potassium permanganate solution for 10 minutes before use.

④ Timing of feeding, collecting fly eggs and taking maggots

Feeding (fly breeding drink): at irregular intervals, feed after the flies have finished eating. Be careful not to feed too much each time to prevent the flies from dying.

Egg collection materials: put them into the cage in the morning and take them out and put them into the maggot breeding platform in the evening.

Taking maggots: depends on production and application.

According to this method, each cage can produce 20 kilograms of maggots per day. Each batch of manure raw materials can produce a batch of maggots, which are then used to breed earthworms. Within the suitable temperature range for maggot growth, high or low temperatures will affect the length of time for maggots to emerge. Therefore, the production plan should be adjusted at any time according to temperature changes to ensure a stable and balanced supply of fresh maggots.

Analysis on the Benefit of Fly Maggot Breeding

Among many insects, people first turned their attention to fly maggot farming, which is due to the fact that the fly group has characteristics that other insects do not have:

1. Fast reproduction and high production efficiency

Flies reproduce quickly. According to estimates, a pair of flies can reproduce 200 billion flies in 4 months, and can accumulate more than 600 tons of pure protein. It usually takes only 10 to 11 days for maggots to develop from eggs to adults. It only takes 4 to 5 days from eggs to adults. The cycle is short, the reproduction is fast, and the yield is high. The newly hatched larvae are 0.08 mg. At 24 to 30 ° C, after 4 to 12 days of growth, the weight of the maggots can reach 20 to 25 mg, and the total biomass increases by 250 to 300 times. As lower animals, insects have an assimilation efficiency of about half that of mammals in the energy conversion of the ecosystem, but their production efficiency is 15 to 40 times that of mammals, which is unmatched by other methods of producing animal protein so far.

(ii) Omnivorous diet, with a fondness for animal dung

The raw materials for breeding fly maggots come from a wide range of sources, including the scraps of agricultural and sideline products such as wheat, rice bran, distiller's grains, and bean dregs, as well as livestock and poultry manure such as pig manure, chicken manure, and duck manure. A livestock and poultry farm equipped with a fly maggot breeding farm is equivalent to building another insect protein feed production plant. The raw material is the feces discharged by livestock and poultry, and the product is high-quality fly maggot protein. The waste is mainly transformed into benefits. The feces after breeding fly maggots has no odor, does not attract flies, and is fertile and loose. It is a high-quality organic fertilizer for crops. This special conversion function is beyond the reach of other feed insects. The ability of fly maggots to process livestock and poultry feces is 20 times that of earthworms.

3. Strong disease resistance and seldom get sick

Flies live in dirty places and are surrounded by countless germs, but they are safe and sound and will not be infected by these pathogens. Maggots have strong vitality and never get sick from eating feces. There is nothing poisonous in the maggots. The kitchen environment that other animals cannot tolerate is a paradise for maggots, which is due to their excellent immune function. Flies can produce a variety of effective substances against bacteria and viruses. For example, there is an antibacterial active protein in the secretions of flies, which has extremely strong bactericidal and antiviral abilities. As long as the concentration is one ten-thousandth, it can kill various bacteria and viruses. No modern antibiotic can compare with it. Scientists have also found an anti-cancer active protein in flies, which has a strong inhibitory effect on cancer cells. When raising maggots, you generally don't have to worry about disease prevention, which can greatly save the cost of disease prevention.

(IV) High-quality animal protein feed

Research results at home and abroad show that insects not only have higher protein content than chicken, fish, eggs, pork and other higher animals, but also have a very reasonable amino acid composition in their proteins, close to the amino acid ratio pattern in proteins established by the Food and Agriculture Organization of the United Nations. The digestibility of insect protein is very close to or better than that of animal protein. This shows that insect protein can be used as a high-quality protein feed for livestock and poultry.

At present, many countries in the world have taken artificial breeding of insects as the main direction to solve the problem of protein feed sources. Dry fly maggots generally contain about 60% protein, 10% to 15% fat, and rich in various amino acids. The total amount of essential amino acids is 2.3 times that of fish meal, and methionine and lysine are 2.7 and 26 times that of fish meal, respectively, which is significantly higher than dry fish meal. Practice has proved that it can not only completely replace fish meal, but also add an appropriate amount of live fly maggots to mixed feeds to feed crabs, fish, turtles, eels, eels, prairie fish, birds, etc., which significantly accelerates growth and significantly increases production, with very good results. According to experiments, adding an appropriate amount of fresh insects to feed laying hens can increase the egg production rate by 17% to 25%, increase the production of fish by more than 22%, and increase the growth rate of pigs by 19.2% to 42%, and save 20% to 40% of feed. Artificial breeding of fly maggots can alleviate feed shortages and reduce feeding costs. In this way, the pressure of feed grain on my country's agriculture, the pressure on the environment, the pressure on arable land and irrigation water, the pressure on foreign exchange needed to import grain, etc. can be greatly alleviated.

(V) The body of fly maggots is full of treasures

Fly maggot protein can not only be used as high-quality protein feed, but also can be used to extract protein powder and develop advanced nutritional products. It is an ideal nutritional source for human beings in the future. During the production process, a variety of biochemical products such as fat, antibiotics, and lectins can be obtained at the same time. Antibacterial protein can eliminate all fungal microorganisms and has a strong bactericidal effect. Maggot shells are a good raw material for extracting chitin. Chitin is known as the sixth essential life element for the human body in addition to sugar, protein, fat, vitamins and minerals. Chitin has unique medical and health functions for the human body, activates and repairs cell functions, enhances immune regulation functions, prevents diseases, improves disease resistance and accelerates recovery functions, removes toxic and harmful substances from the body, and regulates the physiological balance of the human body.

(VI) Fly maggot production is simple and easy

The production of fly maggots does not require any epidemic prevention measures or modern factories. Under the conditions of civil water and electricity equipment, they can be mass-produced by heat preservation, manure supply and escape prevention. They do not produce toxic substances and do not pollute the environment. Fly maggots can be called excellent chemical engineers. According to the current level of human science and technology, it is easy to achieve factory breeding of fly maggots. Fly maggots are resistant to high-density breeding. A 50*50*50m³ fly cage can raise 10,000 to 12,000 adult flies. The domestic large-scale and factory production technology of fly maggots and the preparation technology of fly maggot biochemical products have gradually matured.

(VII) Maggot manure is high-quality organic fertilizer

The livestock and poultry manure treated with maggots is odorless, flies-free, fertile and loose, and is a high-quality organic fertilizer for crops. According to Russian reports, 500 kg of maggot manure can be obtained by treating pig manure with maggots. When pig manure is treated with maggots, the original weed seeds in the pig manure are eaten by maggots and no longer return to the field to harm crops. When maggot manure is used as fertilizer, the soil can get rid of the problems of soil compaction, deterioration of physical properties, and decreased fertility caused by the use of chemical fertilizers. When 20 tons of maggots are applied to 1 hectare of land, compared with the application of a full set of chemical fertilizers, oat production increased by 20%, oat and bean intercropping increased by 18%, and oat production increased by 57% compared with the application of phosphorus and potassium fertilizers alone. The intercropping of oats and beans is the most amazing, with a production increase of 68% compared with the application of a full set of chemical fertilizers and a production increase of 96% compared with the application of phosphorus and potassium fertilizers, but the increase in potato production is not large.

8. An important part of ecological agriculture

Incorporating fly maggot farming into the material recycling of ecological agriculture can successfully solve the two major problems that plague livestock and poultry, namely manure pollution and shortage of animal protein feed. Livestock and poultry digest and absorb only 25% of feed nutrients, and the rest are lost in the manure. Livestock and poultry manure is rich in nutrients such as protein. Fly maggots can digest and absorb almost all the nutrients lost in the manure and convert them into insect protein. Other insects are unable to do this, but fly maggots can take on this heavy responsibility. Adding the breeding industry to the breeding and planting industries extends the food chain, transforms material energy into a higher quality, and becomes a material that can be used by other higher animals, thus improving resource utilization. Waste is reused in the production process, and the output of one system is the input of another system, forming a stable material benign circulation mechanism within the system, improving the stability and economic benefits of the system.

Almost all current feces treatment technologies can only produce general organic fertilizers, and often do not completely remove the odors, require large investments, and have high operating costs. However, fly maggot biotechnology can simultaneously produce antibacterial high-protein feed and biological organic fertilizers, with fast processing speed, high efficiency, low cost, and thorough deodorization.

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Fly maggots are rich in nutrition and good in palatability. They are one of the excellent animal feeds for turtles to be combined with or directly fed. According to relevant reports, fly maggots contain an active ingredient of antibacterial enzymes, which have a good effect on disease prevention.

(1) Living and breeding habits of houseflies Houseflies are suitable for living and breeding in an environment with a room temperature of 22-32℃ and a relative humidity of 60%-80%. Under the above conditions, the pupa develops for 3 days, from soft to hard, from beige, light brown, dark brown to black, and finally the adult fly breaks out of the pupa. The newly hatched adult fly can only crawl but not fly. It will take 1 hour before it spreads its wings and starts to eat and drink water. The adult fly is active during the day and stays still at night. After 3 days of sexual maturity, it begins to mate and lay eggs. The peak of egg laying is 6-8 days old, and then it gradually decreases. By the 15th day of age, the ability to lay eggs is basically lost. The fly eggs hatch into maggots in 0.5-1 day. The maggots are cultured in the feces of pigs, chickens, etc. for about 5 days before they turn into pupae. A generation of flies is about 28 days. Under artificial breeding conditions, the most suitable temperature is controlled and nutrient-rich culture medium is prepared, so that the maggots are large in size, high in yield, and good in quality. (2) The breeding facilities can be determined according to the scale of turtle breeding. The basic facilities for general fly breeding include breeding workshops, breeding cages and breeding tools.

The size of the breeding workshop can be determined by each turtle breeding farm according to its own needs. However, the workshop must be heat-insulated, ventilated, and clean. The floor should preferably be cement, which is easy to clean. In order to effectively prevent other outdoor insects from entering the breeding workshop, the ventilation windows should be equipped with fine screens.

The cage frame of the breeding cage can be made of steel or wood, and then covered with fine nylon mesh. The specifications of the cage are 150 cm long, 100 cm wide and 120 cm high. The bottom of the cage is required to be 30 cm above the ground when it is installed. (3) The breeding tools mainly include feed basins, water basins, eclosion tanks and egg-laying tanks. (4) Breeding of breeding flies Breeding flies are raised in cages. Generally, 15,000 breeding flies are raised in cages of the above specifications. A cloth sleeve should be added to one side of each cage to facilitate the hand to add feed, water and collect eggs. 15,000 adult flies are fed 25 grams of milk powder every day. The feed is placed in a feed basin with a gauze pad. The adult flies are allowed to stand on the gauze to suck the feed and water. The feed and water are changed once a day. Gauze is placed in the water basin, and wet wheat bran is placed in the egg-laying tank for the flies to lay eggs. The eggs are collected once a day and sent to the maggot room for maggot breeding. The number of eggs laid by breeding flies is the highest between 8:00 and 15:00 every day, so the time for egg collection should be appropriate. Each batch of breeding flies is eliminated after 15 to 20 days of breeding. They can be killed with hot water or steam, dried and ground into powder, and used as turtle feed, and then replaced with a new batch. During the breeding period of breeding flies, glass and screens should be installed on the doors and windows to facilitate temperature control, and fans should be installed on the walls to regulate the air. The room should be equipped with heating equipment to keep the temperature at 22 to 32°C in winter and the relative humidity at 60% to 80%. Be careful when operating to prevent the breeding flies from escaping. (5) Fly maggot breeding Fly maggot breeding can be carried out in a room with good insulation and ventilation conditions, using bricks with a side height of 20 cm and an area of ​​2 to 5 m2, or using wooden frames and plastic trays for breeding. A plastic tray with a diameter of 50 cm can produce 1.5 kg of maggots after one day of breeding with 3 kg of bran.

The specific method of raising maggots is as follows: pour fly eggs and bran into a plate, add maggot feed such as wine lees, bean dregs or bran, and mix well. Note that fly eggs should not be exposed on the surface of the maggot feed to avoid water loss and death of eggs. The thickness of the maggot feed is generally 5 to 10 cm, and the fermentation temperature in the maggot feed is not higher than 40℃ and not lower than 20℃ as a standard. In summer, when the temperature is high, the maggot feed should be appropriately thinner; conversely, in winter, when the temperature is low, the maggot feed can be appropriately thicker. If human and animal feces are used, bacteria and parasites must be killed before use. The ratio of feed to maggots, taking chicken manure as an example, is generally 3.5 to 4 kg to produce 0.5 kg of fresh maggots. Regardless of which raw material is used to raise maggots, the dryness and humidity of the maggot feed should be kept at 60% to 65%. (6) Maggot collection: Maggots are afraid of light and can be collected. Use feces to scrape the surface of the feed in the maggot breeding pond and push it continuously. The maggots will drill down and take away the surface feed. Repeat this method many times. Finally, a small amount of feed and a large amount of maggots are left. At this time, the maggots can be taken away and mixed with other feed to feed the turtles. (7) Breeding of fly species While producing fly maggots, some of the maggots are allowed to pupate as a source of new fly species. There are two methods for pupation: one is to let the maggots pupate naturally in the feed, wash out the maggot feed with water, and then get fly pupae; the other is to take out the maggots and put them in a basin filled with dry wheat bran to promote pupation after about 5 to 6 days of culture in the maggot feed. Then use a sieve to separate the wheat bran to get pupae. The size of the pupae is required to reach 50 pupae per gram.

Maggots are the larvae of houseflies. The body color of maggots changes from transparent, milky white to creamy yellow until they mature and pupate. Maggots have three instars: the first-instar larvae are 1 to 3 mm long and have only the posterior spiracles. After molting, they become the second-instar, 3 to 5 mm long, with anterior spiracles and 2-lobed posterior spiracles. After molting again, they become the third-instar, 5 to 13 mm long, with 3-lobed posterior spiracles. The third-instar larvae are oblong-conical, with a pointed front end and a truncated rear end, without eyes or bright foot cavities. They like to drill holes, are afraid of strong light, and live in dark places away from light in breeding habitats all day long. Maggots are high in crude protein and crude fat, rich in nutrition, and are an ideal food for forest frogs.

The optimum environment temperature (culture medium temperature) for fly maggots is 34-40℃, and the development period is 3-3.5 days. When the temperature is 25-30℃, the development period is 4-6 days; when the temperature is 20-25℃, the development period is 5-9 days; when the temperature is 16℃, the development period is as long as 17-19 days. The minimum development temperature is 8-12℃, and death occurs when it is higher than 48℃.

The suitable humidity for 1st to 2nd instar maggots is 61% to 80%, and the best humidity is 71% to 80%. The suitable humidity for 3rd instar maggots is 61% to 70%. If the humidity is higher than 80% or lower than 40%, they cannot develop normally, rarely pupate, and may even die.

Air circulation is conducive to the growth and development of maggots. In garbage dumps, maggots are often distributed in corners and bases of walls with large gaps. Exhaust fans should be installed in the breeding room, and screens should be installed on the exhaust fans for filtering to prevent flies from escaping from the fan outlet. Doors and windows should be sealed with wire mesh to prevent snakes, rats and other harmful creatures from entering the breeding room.

Fly maggots are omnivorous and like to eat decayed and fermented organic matter. Animal and plant feeds and proteins in microorganisms are all feeds that fly maggots like to eat. When the third-instar fly maggots mature, they stop eating, leave the breeding place, and burrow into the nearby loose soil to pupate.

In artificial breeding, livestock and poultry manure is mainly used as the base material, and fresh is better. Livestock and poultry manure must be fermented before use. Pig manure, chicken manure, tofu dregs, wheat bran, livestock and poultry scraps, etc. can be fermented and used as the base material for fly maggot breeding.

The base material can be mixed according to the following formula: 80% pig manure, 20% wheat bran; 60% pig manure, 40% chicken manure; 75% pig manure, 25% tofu dregs; 100% fresh pig manure; 50% chicken manure, 25% pig manure, 25% tofu dregs. If the manure is too wet, a small amount of wheat bran can be added. According to the existing conditions, see which base material is easy to obtain and low in cost, and prepare it flexibly. Add EM live bacteria to the prepared manure, add 5 kg of EM bacteria per ton, then cover it with plastic film, turn the manure once on the third day, and then add 3 kg of EM bacteria to the manure to make the pH of the manure reach 6.5-7. If the pH is higher than 7, add wine lees and vinegar; if it is lower than 6.5, add lime water. It can be used after fermentation for 2 days. The water content of the base material is about 70%, and it is better to pile it up to 20 cm high without loosening or deformation.

After the base material is fermented, it can be sent to the maggot breeding room to breed fly maggots. A rectangular maggot breeding pool with an area of ​​1.5 square meters can be built in the maggot breeding room. The fermented base material is piled in the pool in a long strip with a thickness of 10 to 15 centimeters. Let the adult flies lay eggs directly on the base material, and cover them slightly with base material or feed after laying eggs to prevent the fly eggs from drying out. When the room temperature is 25 to 35 degrees Celsius, the egg mass will hatch into maggots after eight to ten hours. If the base material is too dry, sprinkle a small amount of water on it. The amount of water added should be appropriate so that the water does not flow out of the manure pile.

My friend, first of all, I want to tell you that it is not feasible to rely on running volume, because first, flies and maggots cannot be raised in large quantities, and it is almost unrealistic to produce hundreds of kilograms a day, so it is not feasible to use them as feed to sell; second, the cost of raising flies and maggots is very high, at least 3 yuan per kilogram. I was once promoted on TV and traveled a long way to study and investigate. What I saw and heard before the investigation was also found out by my own practice. The fly and maggot farming shown on TV is idealized. Of course, a small amount of breeding (a few kilograms a day) as a feed for poultry is still effective. It is almost impossible to make money and get rich, unless you cheat, like a pyramid scheme, and promote that breeding can make money, and then charge training fees, seed fees, and other honorary title fees. There are many people who make money this way. Finally, I hope that this friend will investigate more and conduct experiments, and then think about it carefully.

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