CATDOLL : CATDOLL: What food is good for raising flies? (What food is good for raising flies?)

1. What are the correct methods and precautions for breeding flies?

1. Design of fly house. Flies should be raised indoors, and it is best to build a new fly house in a semi-basement. The breeding room of the fly house does not open directly to the outside. There is a closed corridor in the house, which leads to the corridor from the back door of the studio. Black curtains should be hung on the door to prevent flies from escaping. Screens and heating equipment should be installed on the windows. The room temperature should be kept at 20-30℃, with a minimum of no less than 15℃ and a maximum of no more than 35℃.

2. Main equipment for flies. There are fly cages, food trays, egg-laying trays, and eclosion trays. The fly cage can be made into a 60-80 cm cube with thick iron wire, covered with white gauze, with an operation opening on one side. The size of the opening is suitable for placing food trays and egg trays. A sleeve is made of black cloth at the opening to prevent flies from escaping. Each food tray is equipped with 3-4 medium trays for flies to lick the feed. A small water cup is placed in each cage, and a sponge pad is placed in the cup. An egg-laying primer is placed in the egg-laying tray to induce female flies to lay eggs. The eclosion tray is used to hold the quickly eclosing fly pupae during the generation change.

3. Fly breeding and management. ① Breeding fly feed: grind the 4-day-old maggots cultured aseptically, add 60% brown sugar, 2% yeast powder and appropriate amount of water to make a paste, and add 0.1% sodium benzoate. ② Egg-laying primer: take bran and add 0.03% ammonium bicarbonate and mix well, or use chicken feces is better. ③ Stocking density: 50,000 to 80,000 flies per cubic meter of fly cage, generally 10,000 to 20,000. ④ Management method: When the breeding flies are found to be mating, they are placed in the egg-laying tray 2 days later. The egg-laying primer should be loose and evenly spread, with a thickness of 1 to 2 cm. Breeding flies lay the most eggs between 8 and 15 o'clock every day, and the egg-laying tray should be replaced in time. ⑤ Winter seed preservation: The fly pupae that have been selected and removed from the inferior can be stored in a container with appropriate temperature, humidity and loose feces, and placed indoors and covered with straw to keep warm and moist.

Key points for breeding and reproduction of flies

The use of plastic greenhouses to raise flies can easily meet these characteristic requirements of flies during reproduction, and its advantages are as follows:

1. The breeding temperature is significantly increased. There is no need for special heating facilities for flies. In spring, summer and autumn, the temperature in the shed can be easily maintained at 27-30℃. By rolling up and covering the straw curtains on the roof, the temperature increase and decrease measures are simple and easy, and the breeding cost is almost not increased. Even in the cold winter, the temperature in the shed can reach an average of about 20℃.

2. Stable humidity is easy to maintain. To raise flies in ordinary houses, you need to constantly sprinkle water on the ground to maintain a certain humidity. In the plastic greenhouse, because of its good airtightness and the ground not hardened with cement, there is no need to sprinkle water or specially adjust the humidity.

3. Sufficient light In the plastic greenhouse, lift the straw curtain on the roof, and the sunlight filtered by the plastic film will illuminate the entire greenhouse, making it simple and easy to maintain light.

2. What do houseflies eat to produce more eggs?

If female flies are simply supplied with water, sugar and carbohydrates, they can grow, but their ovaries cannot develop or lay eggs. Only by adding protein food or multiple amino acids can they lay eggs normally.

If royal jelly is used to feed female houseflies, the pre-oviposition period can be shortened and the egg-laying amount can be increased.

3. Do flies prefer sweet or salty food?

Because flies like to eat liquid food rich in water. If possible, the favorite food of flies is sugar water. Because the mouthparts of flies are licking and sucking mouthparts, they need to spit out digestive juices from their mouths to break down the food into liquid before eating. The reason why we see many flies eating feces is mainly because there are generally not many flies in places with delicious food, and flies have no way to get better food, so they have to condescend to eat feces. The most important thing is that you don’t have to worry about being swatted to death by a fly swatter when eating this. ^_^ However, if feces and watermelon rind are put together, flies will of course choose watermelon rind, because it is said to taste good.

4. What should be fed to adult red-headed flies?

Feeding forest frogs with red-headed fly maggots is easier to digest than feeding with housefly maggots, but there are also maggot skins digested by animals in the feces. At the same time, its feed requirements are high. Raising red-headed flies with wheat bran generally requires adding pig blood and other substances to supplement nutrition, which is a test for the epidemic prevention of frog farms. Pig blood and animal viscera carry a lot of bacteria, and the produced fly maggots will also carry a lot of bacteria and are very complicated.

The temperature requirement of breeding flies is higher than that of small house flies. For the Northeast region, breeding fly breeding rooms need to be heated even in summer. The quality of fly maggots is good and they are relatively easy to digest when fed to animals. When maggots of small house flies (engineering flies) are used to feed eels and forest frogs, a large number of maggot skins that have not been digested by animals can often be seen in the breeding ponds. However, this is not the case when feeding maggots produced by red-headed flies, which can be completely digested by animals.

5. What are the commonly used feed formulas for raising breeding (adult) flies?

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) Raw materials for egg collection: 80% fresh pig manure 10% wheat bran 9.5% peanut hawthorn 0.5% bicarbonate of ammonium fly breeding beverage: 5% brown sugar 5% milk powder 5% fresh eggs 0.2% vitamin C 0.2% methionine 84.6% water ②Fermentation of manure: Dilute and ferment with EM at a ratio of 1:10. Humidity is between 70-80%, mixed and fermented for 1-2 days before use, which can eliminate toxic and harmful gases in manure during maggot breeding. ③Put the raw materials for egg collection 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 Arrangement of feeding, collecting fly eggs and taking maggots Feeding (fly breeding drink): irregular, feed after observing that the flies have finished eating, and pay attention to not feeding too much each time to prevent weak ones from dying. Raw materials for collecting eggs: put them in the cage in the morning, take them out in the evening and put them in the maggot breeding platform. Taking maggots: depends on production and application. According to this method of breeding, each cage can produce 20 kilograms of fly maggots every day. A batch of fly maggots can be produced from each batch of manure raw materials, and then used to breed earthworms. Within the suitable temperature range for the growth of fly maggots, 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 changes in temperature to ensure a stable and balanced supply of fresh maggots. II) Selection of maggot breeding feed 1. Feed formula Feed is the material basis for raising maggots well. Through comparative breeding experiments on maggot feed, it is found that it is better to breed maggots with pure chicken manure and pig and chicken manure in a certain proportion, while cow dung is poor for breeding maggots (Table 1). Table 1 Comparison of maggot breeding feed formula experiments Feeding name Combination Item Pure pig manure Pure chicken manure Pure cow manure Pig and chicken manure 1:2 Pig and chicken manure 1:1 Pig and chicken manure 2:1 Pig and cow manure 1:1 Total amount of feed (kg) 10 10 10 10 10 10 10 Egg collection date (month/day) 4/1 4/1 4/1 4/1 4/1 4/1 Hatching date (month/day) 4/2 4/2 4/2 4/2 4/2 4/2 4/2 Adult maggot date (month/day) 4/6 4/6 4/6 4/6 4/6 4/6 4/6 Total number of adult maggots (month/day) 4695 4958 2865 4784 4245 4692 3962 Total weight of adult maggots (month/day) 109 138 41.7 123 111.4 127 74.3 Number of adult maggots per gram (month/day) 43 36 69 39 38 37 53 Note: The number of eggs inoculated is 5000. Based on the results in the table, a set of formulas is obtained for selection: (1) 1 part of pig manure and 1 part of chicken manure, add water and mix, the water content is about 80%. (2) 1 part of pig manure and 2 parts of chicken manure, add water and mix, the water content is 80%. (3) 2 parts of pig manure and 1 part of chicken manure, add water and mix, the water content is 80%. 2. Use pig manure as bait to reduce the cost of raising maggots. According to many materials, wheat bran is the main bait for producing fly maggots. In order to reduce the cost of raising fly maggots and improve economic benefits, we conducted an experiment of artificially raising fly maggots using pig manure instead of wheat bran as bait. After the experiment, it was found that 2 kg of wheat bran was needed to produce 500 grams of fresh maggots using wheat bran as bait, and the cost of 1 kg of fly maggots was 0.25 yuan (excluding equipment investment). Although the protein content of wheat bran after raising maggots did not decrease after testing, it was not effective for feeding livestock and poultry, which resulted in a large amount of wheat bran wasted, limiting its promotion and application. The method of raising fly maggots with pig manure as bait is the same as that of raising fly maggots with wheat bran, and the yield of fly maggots per square meter is basically the same. The various main nutrients contained in the fly maggots produced by the two baits are also basically the same through testing, and no abnormalities occurred during the breeding process. The cost of producing fly maggots with pig manure bait has been reduced from 0.5 yuan to 0.14 yuan per kilogram (pig manure is not priced, only the artificial feeding fee and fly breeding fee are included). Practice has proved that using pig manure as feed to raise fly maggots has a wide source of feed, low production cost, and simple breeding methods. The feces residue after maggot breeding can also be used as fertilizer or biogas raw material, which not only makes full use of bioenergy, but also creates favorable conditions for vigorously promoting fly maggot production. (II) Simple production technology of fly maggots In rural areas, fly maggots can be raised as bait for livestock, poultry and special animals, and can be produced simply by using local materials. Here are several commonly used simple production methods for fly maggots: 1. Plastic basin (bucket) breeding method; this method can be used for small-scale production. Each plastic basin produces about 1 to 1.5 kilograms of fly maggots. It can feed 50-75 pheasants. Place fresh animal viscera, dead rats, etc. in places where there are many flies, let the flies lay eggs on them, put them in the morning and collect them in the evening, and put the collected fly eggs in a large basin with a diameter of 6 cm (or a plastic bucket with a diameter of 30 cm). Sprinkle water into the large plastic basin to keep it moist and cover it. After 2 to 3 days, maggots will grow out. This method can be used to breed fly maggots in the wild without introducing species. When raising fly maggots, the amount of food is fed from small to large, that is, fresh chicken manure and pig manure are put into the basin at a ratio of 1:1, and a plastic basin with a diameter of 60 cm is fed with 1 kg of feed per day (half the feed for barrel breeding), and then sprayed with 100 ml of 3% sugar water (or waste liquid and molasses from the sugar factory). After 4 to 5 days, maggots can grow and feed animals. Feeding method: Pour water into the basin, stir it gently with a wooden stick, pick out the fresh maggots floating on the water surface, wash and disinfect them, and feed them directly to animals. Pour the slag water into a biogas tank or manure pit for fermentation and sterilization. If used to feed turtles, eels, or fish, the feces can be poured into the pond together with the residue for feeding.

6. Complete version of fly maggot breeding technology?

Fly maggot breeding technology:

1. Construction of breeding facilities

1. Construction of fly breeding room

The breeding house is used to raise adult flies. Generally, 20 to 40 square meters is enough. You can renovate an old house, which can also save costs.

The house should be equipped with screen doors and windows to prevent flies from escaping.

If you raise them in winter, you need heating equipment, preferably a heater, and if conditions permit, you can also install air conditioning. The indoor air should be fresh and the sunlight should be more than 10 hours a day.

Flies are mostly raised in cages. Cages not only take up less space, but most importantly, they do not pollute the environment. We can set up a breeding rack in the fly breeding room. The breeding rack is made of wood and can be divided into two layers. Each layer of the breeding rack is placed with a fly cage made of nylon mesh. The fly cage is fixed on the rack like a mosquito net. The cage is 100 cm long, 40 cm wide and 80 cm high. The breeding flies are kept in the cage; at the same time, a working opening with a diameter of 30 cm is left in the middle and lower part of the fly cage. The working opening should be made into a cylindrical tube with white cloth to facilitate feeding, watering and taking and placing the egg-laying pad.

In addition, a piece of nylon gauze can be hung in the middle of the cage to increase the habitat area for adult flies. The bottom of the cage is supported on a small flat plate.

In addition, each fly cage should be equipped with a feeding tray (a plastic dish with a diameter of 15-20 cm), a water tray (25 cm x 15 cm x 6 cm), an emergence tray (40 cm x 30 cm x 8 cm) and an egg tray for holding eggs (40 cm x 30 cm x 8 cm).

2. Construction of maggot breeding room

The maggot breeding room is mainly used to breed fly maggots for seed preservation. The room temperature is required to be between 20 and 28 degrees Celsius, and the humidity is 65% to 70%. Other indoor breeding facilities should be determined according to the breeding method adopted, such as setting up multi-layer breeding racks, maggot breeding basins and heating equipment. Generally, these facilities are placed on both sides, leaving a walking path in the middle, which can fully utilize the space and facilitate operation and management.

3. Construction of maggot breeding greenhouse

Maggot breeding shed is specially used to breed fly maggots for protein feed. It can be built into a simple shed as long as it is windproof and waterproof.

The maggot breeding pond can be designed as this long strip pond or a small rectangular pond.

If it is a long strip pool, the length is not limited, the width is about 1.2 meters, and the two long sides have a certain slope, the angle is 45 degrees, and at the same time, the two long sides should have 11-20 cm grooves, and the height of the grooves is about 8-10 cm. This is to facilitate the collection of fly maggots in the future.

If it is a small rectangular pool, the area is usually 3-4 square meters. There are slopes and grooves on all four sides. The setting requirements of the slope and groove can be operated with reference to the long strip pool. The only difference is that you can bury the maggot collection bucket at the corner of this pool, and the edge of the bucket should be slightly higher than the bottom of the pool, which is also for the convenience of collecting maggots.

After the breeding facilities are built, the next step is to cultivate maggots.

2. Cultivation of fly maggots

The specific operational steps for breeding fly maggots can be divided into the following aspects (diagram): hatching of pupae → breeding of seed flies → collection of egg masses → centralized hatching → breeding in separate trays (part of which is retained for seed) → separation of maggots → breeding of maggots → utilization of fresh maggots → repeated cycle of production.

1. Breeding of fly species

Put the purchased fly seeds into the hatching tray. Basically, 10,000 fly seeds are about 150 grams. Usually, a hatching tray of 40 cm long, 30 cm wide and 8 cm high can hold up to 750 grams of fly seeds.

2. Hatching of pupae

Put the hatching plate into the fly cage and tie the working opening tightly. As long as the appropriate temperature and humidity are maintained, the flies will hatch into flies after 3-4 days. Generally, the most suitable temperature for flies is 25℃-30℃, and the relative humidity of the air is preferably 50%-80%. If the temperature is low in winter, turn on the heater to increase the temperature, and you can also turn on the air conditioner if conditions permit. If the temperature is around 36 degrees, the flies will hatch into flies in two days.

When flies emerge from their cocoons, feed trays and water basins should be placed. Flies, like other animals, also need enough protein, sugar and water to maintain life and reproduction. Under artificial breeding conditions, we use 50% milk powder and 50% sugar. Sugar can be some expired sugar cubes, which can also save costs.

Put sugar and milk powder in two feed plates respectively; put a sponge of the same size and 2 cm thick in the water basin, and then add water on the same level as the sponge to prevent flies from falling into the water and drowning when drinking water.

In addition, in order to promote the development of flies and their mating and egg laying, water, sugar and milk powder should be added in time to ensure that the flies have adequate nutrition. At the same time, in order to increase the egg laying rate, you can feed one-third of raw eggs to each cage every day from the time the flies emerge, and feed for three consecutive days to achieve the best results. When feeding eggs, it is best to lay a layer of gauze on the surface of the eggs in the feed tray to prevent flies from sticking to them when eating.

During this period, not only the temperature and humidity must be maintained, but also the appropriate light, because appropriate light can stimulate adult flies to feed and lay eggs. Generally, the light exposure for adult flies is 10-11 hours a day. Natural light can be used on sunny days, and fluorescent or incandescent light should be used on rainy days or when the light is relatively dim. Turn off the light at night to let them rest. The breeding fly room should be ventilated frequently to keep the indoor air fresh.

On the fourth day after the adult eclosion, flies can be seen mating, and on the fifth day, they can lay eggs. Therefore, on the fourth day, egg-laying materials should be placed in the fly cage in time. Egg-laying materials are solid feeds used to lure flies to lay eggs. This type of feed is nutritionally comprehensive, can meet the nutritional needs of flies, and has a strong attraction to flies. We usually choose wheat bran as egg-laying materials. However, wheat bran must be moistened before use. Just add clean water to the wheat bran so that it can drip water and can be loose when put down. Spread a layer of the adjusted wheat bran in the egg-laying basin with a thickness of about 1 cm. The four corners should be slightly thicker, about 2-3 cm. Put the egg-laying materials in the fly cage. After mating, flies will naturally lay eggs on wheat bran. Fly eggs are white, and milk powder is also white, so after starting to lay eggs, you only need to add sugar to the feed tray instead of milk powder. The purpose is to prevent flies from laying eggs on milk powder and delaying egg collection.

7. What is the favorite food of flies?

Flies' favorite food is feces juice.

Flies are an animal of the family Muscidae in the order Diptera. They are distributed all over the world. Although the life span of flies is only about one month, their reproductive capacity is amazing. Their diet is very complex and they are omnivorous flies. They can feed on a variety of substances, including human food, secretions and excretions of humans and livestock, kitchen scraps and other garbage, and plant juices.

8. What do flies eat?

When raising flies, people usually feed them some milk or animal offal. These things can be placed in places where flies gather and become good feed, allowing the flies to quickly turn into pupae.