CATDOLL : CATDOLL: What to feed flies? (What to feed flies? video)

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 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.

3. What baits do flies like to eat?

Flies love to eat rotten bait with a fishy smell. For example, rotten fish and shrimp are the favorites of flies. Therefore, using rotten fish and shrimp with a fishy smell as bait to catch flies is the most effective.

4. 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.

5. What do flies eat?

The fly's sense of smell is very sensitive, so they like strong smells. It will eat some fruit flies, insects, etc. It is omnivorous. Some species like to eat rotten food, while others prefer sweet foods.

Fruit flies like to eat rotten fruit, while house flies and flesh flies prefer to eat feces or rotten meat. What it eats depends a lot on its species, and different species eat different foods. "

6. What do flies like to eat?

1. Common house flies, golden flies, green flies, blow flies, and flesh flies are omnivorous flies. They have a strong tendency to sugar, vinegar, ammonia, and fishy smells.

2. Some specialize in sucking nectar and plant juices, and some specialize in eating human and animal blood or blood from animal wounds and eye and nasal secretions. Other knowledge about flies: 1. Flies often land on disgusting things. Spoiled food, feces, etc. are their favorites, and they will naturally be contaminated with bacteria. 2. Flies' taste receptors are on their feet. Because they are contaminated with a lot of dirt, which affects their taste, they often rub their feet.

3. Usually, flies carry more than 200 kinds of harmful germs. Even if they only stay on food for 1 second, they can "transmit" the bacteria to the food.

7. What is the favorite food of flies?

Because flies like to eat liquid food rich in water. If possible, flies' favorite food is sugar water. Because flies have licking and sucking mouthparts, they need to spit out digestive juices from their mouths to break down 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 killed by a fly swatter when eating this. ^_^ However, if you put feces and watermelon rind together, flies will of course choose watermelon rind because it is said to taste good.